AQMS / Aqua Metals, Inc. - تصريحات هيئة الأوراق المالية والبورصات، التقرير السنوي، بيان الوكيل

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US ˙ NasdaqCM ˙ US03837J1016

الإحصائيات الأساسية
LEI 549300RYC8R46H1FXA06
CIK 1621832
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Aqua Metals, Inc.
SEC Filings (Chronological Order)
توفر هذه الصفحة قائمة كاملة ومرتبة ترتيبًا زمنيًا لتصريحات هيئة الأوراق المالية والبورصات، باستثناء تصريحات الملكية التي نقدمها في مكان آخر.
August 13, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended June 30, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission file number: 001-37515 A

August 13, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 13, 2025 AQUA METALS, INC. (

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 13, 2025 AQUA METALS, INC.

August 13, 2025 EX-99.1

Aqua Metals Advances Commercialization of AquaRefining™ Technology with Industry-Leading Lithium Quality and Strategic Progress Company eliminates long-term debt, strengthens balance sheet, and extends cash runway through asset sales and cost-reducti

Exhibit 99.1 Aqua Metals Advances Commercialization of AquaRefining™ Technology with Industry-Leading Lithium Quality and Strategic Progress Company eliminates long-term debt, strengthens balance sheet, and extends cash runway through asset sales and cost-reduction initiatives RENO, Nev., August 13, 2025 — Aqua Metals, Inc. (NASDAQ: AQMS) (“Aqua Metals” or the “Company”), a pioneer in sustainable

August 13, 2025 EX-3.6

Certificate of Amendment to the First Amended and Restated Certificate of Incorporation

Exhibit 3.6 CERTIFICATE OF AMENDMENT OF AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF AQUA METALS, INC. Aqua Metals, Inc., a corporation organized and existing under and by virtue of the General Corporation Law of the State of Delaware (the “Corporation”), does hereby certify: 1. That the certificate of incorporation of the Corporation is hereby amended by changing the Article thereof numbe

July 24, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 22, 2025 AQUA METALS, INC. (Ex

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 22, 2025 AQUA METALS, INC.

July 14, 2025 424B5

Up to $2,258,108 Shares of Common Stock

Filed Pursuant to Rule 424(b)(5) Registration Statement No. 333-267780 AMENDMENT NO. 1 DATED JULY 11, 2025 To Prospectus Supplements dated August 30, 2024 (To Prospectus dated October 19, 2022) Up to $2,258,108 Shares of Common Stock This Amendment No. 1 to Prospectus Supplement, or the Amendment, amends and supplements the information in our prospectus dated October 19, 2022, or the Base Prospect

July 3, 2025 8-K

Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 2, 2025 AQUA METALS, INC.

June 23, 2025 DEF 14A

United States Securities and Exchange Commission Washington, D.C. 20549 SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934

Table of Contents United States Securities and Exchange Commission Washington, D.C. 20549 SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)

June 17, 2025 424B5

AQUA METALS, INC. 2,000,000 Shares of Common Stock

Filed Pursuant to Rule 424(b)(5) Registration Statement No. 333-287775 - s AQUA METALS, INC. 2,000,000 Shares of Common Stock This prospectus relates to the offer and sale from time to time of up to 2,000,000 shares of our common stock, par value $0.001 per share (“common stock”), by Lincoln Park Capital Fund, LLC (“Lincoln Park” or the “Selling Stockholder”). The shares included in this prospectu

June 13, 2025 EX-3.2

Amendment No. 1 to Third Amended and Restated Bylaws of Aqua Metals, Inc.

Exhibit 3.2 AMENDMENT NO. 1 TO THIRD AMENDED AND RESTATED BYLAWS OF AQUA METALS, INC. Section 2.6 of the Third Amended and Restated Bylaws of Aqua Metals, Inc. is deleted in its entirety and replaced with the following: “SECTION 2.6. Quorum. Unless otherwise provided by law or the Corporation’s Certificate of Incorporation, one-third (33.33%) of the outstanding shares entitled to vote, present in

June 13, 2025 8-K

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits

-12-31 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 9, 2025 AQUA METALS, INC.

June 10, 2025 CORRESP

June 10, 2025

June 10, 2025 VIA EDGAR U.S. Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.E. Washington, D.C. 20549 Attn: Sarah Sidwell Re: Aqua Metals, Inc. Registration Statement on Form S-1 File No. 333-287775 Acceleration Request Requested Date: Thursday, June 12, 2025 Requested Time: 4:30 p.m., Eastern Daylight Time Ladies and Gentlemen: In accordance with Rule 461 under

June 10, 2025 PRE 14A

United States Securities and Exchange Commission Washington, D.C. 20549 SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934

Table of Contents United States Securities and Exchange Commission Washington, D.C. 20549 SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)

June 4, 2025 S-1

As filed with the Securities and Exchange Commission on June 4, 2025

Table of Contents As filed with the Securities and Exchange Commission on June 4, 2025 Registration No.

June 4, 2025 EX-FILING FEES

Filing Fee Table

Exhibit 107 Calculation of Filing Fee Tables Form S-1 (Form Type) Aqua Metals, Inc.

May 29, 2025 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 22, 2025 AQUA METALS, INC.

May 16, 2025 EX-10.1

Purchase Agreement, dated as of May 15, 2025, by and between Aqua Metals, Inc. and Lincoln Park Capital Fund, LLC

Exhibit 10.1 PURCHASE AGREEMENT PURCHASE AGREEMENT (the “Agreement”), dated as of May 15, 2025, by and between AQUA METALS, INC., a Delaware corporation (the “Company”), and LINCOLN PARK CAPITAL FUND, LLC, an Illinois limited liability company (the “Investor”). WHEREAS: Subject to the terms and conditions set forth in this Agreement, the Company wishes to sell to the Investor, and the Investor wis

May 16, 2025 EX-10.2

Registration Rights Agreement, dated as of May 15, 2025, by and between Aqua Metals, Inc. and Lincoln Park Capital Fund, LLC

Exhibit 10.2 REGISTRATION RIGHTS AGREEMENT REGISTRATION RIGHTS AGREEMENT (this "Agreement"), dated as of May 15, 2025, by and between AQUA METALS, INC., a Delaware corporation (the "Company"), and LINCOLN PARK CAPITAL FUND, LLC, an Illinois limited liability company (together with its permitted assigns, the “Buyer”). Capitalized terms used herein and not otherwise defined herein shall have the res

May 16, 2025 EX-10.1

Purchase and Sale Agreement and Joint Escrow Instructions between the Subsidiary and Trident Enterprises, Inc.

Exhibit 10.1 PURCHASE AND SALE AGREEMENT AND JOINT ESCROW INSTRUCTIONS This Purchase and Sale Agreement and Joint Escrow Instructions ("Agreement") is entered into as of May 11th, 2025 ("Effective Date") by and between Aqua Metals Waltham Holding LLC (“Seller”) and Trident Enterprises, Inc (“Buyer”). This Agreement constitutes an agreement between Purchaser and Seller and joint escrow instructions

May 16, 2025 8-K

Entry into a Material Definitive Agreement, Unregistered Sales of Equity Securities, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 15, 2025 AQUA METALS, INC.

May 16, 2025 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 12, 2025 AQUA METALS, INC.

May 13, 2025 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 7, 2025 AQUA METALS, INC.

May 8, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended March 31, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission file number: 001-37515

May 8, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 8, 2025 AQUA METALS, INC. (Exac

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 8, 2025 AQUA METALS, INC.

May 8, 2025 EX-99.1

Aqua Metals Expands Product Platform with Advancements in Nickel, MHP, and LFP Recycling; Reports First Quarter 2025 Results

Exhibit 99.1 Aqua Metals Expands Product Platform with Advancements in Nickel, MHP, and LFP Recycling; Reports First Quarter 2025 Results RENO, Nev., May 8, 2025 — Aqua Metals (NASDAQ: AQMS), an innovator in domestic critical minerals refining, AquaRefining, today reported financial results for the first quarter ended March 31, 2025, and highlighted major technology and product development milesto

May 1, 2025 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 25, 2025 AQUA METALS, INC.

March 31, 2025 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 or ☐ TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-37515 Aqua Metals, Inc. (Exact name o

March 31, 2025 EX-4.9

Form of Common Stock Purchase Warrant issued to investors in December 2024 private placement

Exhibit 4.9 NEITHER THIS SECURITY NOR THE SECURITIES FOR WHICH THIS SECURITY IS EXERCISABLE HAVE BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE IN RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD EXCEPT PURSUANT TO AN EFFECTIVE REGISTR

March 31, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 31, 2025 AQUA METALS, INC.

March 31, 2025 EX-19.1

Aqua Metals Insider Trading Policy

Exhibit 19.1 Statement of Policies on Trading In Securities Aqua Metals, Inc. has adopted several policies on trading in securities both of Aqua Metals, Inc. and of other corporations. These policies apply equally to employees, officers, directors and consultants of Aqua Metals, Inc. and of companies owned by Aqua Metals, Inc. (all of which are referred to collectively for convenience as “Aqua Met

March 31, 2025 EX-99.1

Aqua Metals Reports Milestone Advancements, Strategic Progress, and Sierra ARC Lithium Battery Recycling Campus Developments in 2024 Validated closed-loop battery recycling technology, built commercial partnerships, and revised economic model to bett

Exhibit 99.1 Aqua Metals Reports Milestone Advancements, Strategic Progress, and Sierra ARC Lithium Battery Recycling Campus Developments in 2024 Validated closed-loop battery recycling technology, built commercial partnerships, and revised economic model to better pursue funding and scale domestic battery mineral production RENO, Nev., March 31, 2025 – Aqua Metals, Inc. (NASDAQ: AQMS), a pioneer

March 31, 2025 EX-10.10

Form of Secured Promissory Note issued in December 2024 Private Placement

Exhibit 10.10 [FORM OF SECURED NOTE] NEITHER THE ISSUANCE AND SALE OF THE SECURITIES REPRESENTED BY THIS CERTIFICATE NOR THE SECURITIES INTO WHICH THESE SECURITIES ARE CONVERTIBLE HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR APPLICABLE STATE SECURITIES LAWS. THESE SECURITIES MAY NOT BE OFFERED FOR SALE, SOLD, TRANSFERRED OR ASSIGNED (I) IN THE ABSENCE OF (A) AN EFFECTIVE R

March 31, 2025 EX-10.11

Security Agreement dated December 18, 2024 between the Registrant and Purchasers of Notes in the December 2024 Private Placement

Exhibit 10.11 SECURITY AGREEMENT This SECURITY AGREEMENT (this “Agreement”), dated as of December 18, 2024, is made by and among Aqua Metals Reno, Inc., a Delaware corporation (the “Grantor”), and Judd Merrill, as the Collateral Agent, and the secured parties listed on the Schedule of Buyers to the Securities Purchase Agreement (as defined below) (collectively, the “Secured Parties” and each, indi

February 7, 2025 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 3, 2025 AQUA METALS, INC.

February 7, 2025 EX-99.1

Aqua Metals Strengthens Board of Directors to Advance Sustainable Battery Recycling and Critical Minerals Production

Exhibit 99.1 Aqua Metals Strengthens Board of Directors to Advance Sustainable Battery Recycling and Critical Minerals Production Industry Leader Steve Henderson and Finance Expert Eric Gangloff Bring Strategic Expertise to Support Growth RENO, Nev., February 6, 2025 – Aqua Metals, Inc. (NASDAQ: AQMS), a leader in clean metals recycling, today announced the appointment of Steve Henderson and Eric

December 23, 2024 8-K

Entry into a Material Definitive Agreement, Unregistered Sales of Equity Securities, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 18, 2024 AQUA METALS, INC.

November 14, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended September 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission file number: 001-37

November 14, 2024 EX-99.1

Aqua Metals Announces Progress on Long-Term Financing, Operational Achievements, and Ongoing Commercial Development, Reports Third Quarter 2024 Results Company Produces High-Purity, Battery-Grade Lithium Carbonate from Pilot Operations, Working to Ad

Exhibit 99.1 Aqua Metals Announces Progress on Long-Term Financing, Operational Achievements, and Ongoing Commercial Development, Reports Third Quarter 2024 Results Company Produces High-Purity, Battery-Grade Lithium Carbonate from Pilot Operations, Working to Advance Financing and Commercial Agreements RENO, Nev., November 14, 2024 – Aqua Metals, Inc. (NASDAQ: AQMS), a leader in sustainable lithi

November 14, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 14, 2024 AQUA METALS, INC.

November 1, 2024 EX-99.1

Aqua Metals Announces Reverse Stock Split Common Stock Will Begin Trading on a Split-Adjusted Basis on November 5, 2024

Exhibit 99.1 Aqua Metals Announces Reverse Stock Split Common Stock Will Begin Trading on a Split-Adjusted Basis on November 5, 2024 RENO, Nevada, November 1, 2024 – Aqua Metals, Inc. (NASDAQ: AQMS), a pioneer in sustainable lithium battery recycling, today announced that it intends to effect a reverse stock split of its common stock at a ratio of 1 post-split share for every 20 pre-split shares.

November 1, 2024 8-K

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 -12-31 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 28, 2024 AQUA METALS, INC.

November 1, 2024 EX-3.1

Amendment to the Company’s First Amended and Restated Certificate of Incorporation.

Exhibit 3.1 CERTIFICATE OF AMENDMENT OF AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF AQUA METALS, INC. Aqua Metals, Inc., a corporation organized and existing under and by virtue of the General Corporation Law of the State of Delaware (the “Corporation”), does hereby certify: 1. That the certificate of incorporation of the Corporation is hereby amended by inserting the following at the end

September 27, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by

September 17, 2024 PRE 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by

September 6, 2024 8-K

Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): September 4, 2024 AQUA METALS, INC.

August 30, 2024 424B5

Up to $30,000,000 Shares of Common Stock

Table of Contents Filed Pursuant to Rule 424(b)(5) Registration Statement No. 333-267780 PROSPECTUS SUPPLEMENT (to the Prospectus dated October 19, 2022) Up to $30,000,000 Shares of Common Stock Aqua Metals, Inc. has entered into an ATM Sales Agreement, or the Sales Agreement, with The Benchmark Company, LLC relating to the sale of shares of our common stock, par value $0.001 per share, offered by

August 30, 2024 8-K

Entry into a Material Definitive Agreement, Termination of a Material Definitive Agreement, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 29, 2024 AQUA METALS, INC.

August 30, 2024 EX-1.1

Sales Agreement between the Company and The Benchmark Company, LLC

Exhibit 1.1 AQUA METALS, INC. COMMON STOCK SALES AGREEMENT August 30, 2024 The Benchmark Company, LLC 150 E. 58th Street, 17th Floor New York, NY 10155 Ladies and Gentlemen: Aqua Metals, Inc., a Delaware corporation (the “Company”), confirms its agreement (this “Agreement”) with The Benchmark Company, LLC (the “Sales Agent”), as follows: 1. Issuance and Sale of Shares. The Company agrees that, fro

August 22, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 21, 2024 AQUA METALS, INC. (

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 21, 2024 AQUA METALS, INC.

August 14, 2024 EX-FILING FEES

Filing Fee Table

Exhibit 107 Calculation of Filing Fee Tables Form S-8 (Form Type) Aqua Metals, Inc.

August 14, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended June 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission file number: 001-37515 A

August 14, 2024 S-8

As filed with the Securities and Exchange Commission on August 14, 2024

As filed with the Securities and Exchange Commission on August 14, 2024 Registration No.

August 8, 2024 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 2, 2024 AQUA METALS, INC.

August 5, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 5, 2024 AQUA METALS, INC. (E

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 5, 2024 AQUA METALS, INC.

August 5, 2024 EX-99.1

Aqua Metals Announces Continued Progress on Sierra ARC Buildout and Ongoing Efforts to Finance Remainder of Construction and Commissioning Company continues to pursue financing for Sierra ARC through commissioning, impacted by further dips in battery

Exhibit 99.1 Aqua Metals Announces Continued Progress on Sierra ARC Buildout and Ongoing Efforts to Finance Remainder of Construction and Commissioning Company continues to pursue financing for Sierra ARC through commissioning, impacted by further dips in battery minerals pricing; Deploys cash preservation initiatives, and extends pilot operations to support continued strategic partner development

May 23, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 23, 2024 AQUA METALS, INC. (Exa

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 23, 2024 AQUA METALS, INC.

May 16, 2024 424B5

17,500,000 Shares of Common Stock 17,500,000 Warrants to Purchase up to Shares of Common Stock

Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-267780 PROSPECTUS SUPPLEMENT (To Prospectus dated October 19, 2022) 17,500,000 Shares of Common Stock 17,500,000 Warrants to Purchase up to Shares of Common Stock We are offering 17,500,000 shares of our common stock and 17,500,000 non-redeemable common stock purchase warrants, or the warrants, each warrant to purchase one sha

May 15, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 15, 2024 AQUA METALS, INC.

May 15, 2024 EX-4.1

Form of Non-Redeemable Common Stock Purchase Warrant

Exhibit 4.1 NON-REDEEMABLE COMMON STOCK PURCHASE WARRANT AQUA METALS, INC. Warrant Shares: Initial Exercise Date: , 2024 THIS NON-REDEEMABLE COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received, or its assigns (the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at any time on or after the date h

May 15, 2024 EX-1.1

Underwriting Agreement dated as of May 14, 2024 between the Company and The Benchmark Company, LLC*

Exhibit 1.1 AQUA METALS, INC. 17,500,000 SHARES OF COMMON STOCK AND 17,500,000 COMMON STOCK PURCHASE WARRANTS UNDERWRITING AGREEMENT May 14, 2024 The Benchmark Company, LLC 150 East 58th Street, 17th Floor New York, NY 10155 Ladies and Gentlemen: Aqua Metals, Inc., a Delaware corporation (the “Company”), proposes, subject to the terms and conditions stated in this agreement (this “Agreement”), to

May 15, 2024 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 14, 2024 AQUA METALS, INC.

May 15, 2024 EX-99.1

Aqua Metals Advances Circular Supply Chain Strategy with Sierra ARC Buildout, Commercial Partnerships, and $40M Capital Infusion, Reports First Quarter 2024 Results Commences $7M Equity Raise, Signs $33M Non-binding Loan Term Sheet with One of the Wo

Exhibit 99.1 Aqua Metals Advances Circular Supply Chain Strategy with Sierra ARC Buildout, Commercial Partnerships, and $40M Capital Infusion, Reports First Quarter 2024 Results Commences $7M Equity Raise, Signs $33M Non-binding Loan Term Sheet with One of the Worlds’ Largest Private Companies, Initiates Strategic Offtake Agreement with 6K Energy RENO, Nev., May 15, 2024 – Aqua Metals, Inc. (NASDA

May 15, 2024 EX-99.1

Aqua Metals Announces Proposed Public Offering

Exhibit 99.1 Aqua Metals Announces Proposed Public Offering Reno, Nevada – May 14, 2024 – (GLOBE NEWSWIRE) - Aqua Metals, Inc. (Nasdaq: AQMS) (“Aqua Metals” or the “Company”), a pioneer in sustainable lithium-ion battery recycling, today announced that it is offering to sell shares of its common stock and warrants to purchase common stock in an underwritten public offering. All of the securities i

May 15, 2024 EX-4.2

Form of Warrant Agency Agreement to be entered into between the Company and VStock Transfer, LLC

Exhibit 4.2 AQUA METALS, INC. and VSTOCK TRANSFER, LLC, as Warrant Agent Warrant Agency Agreement Dated as of May [], 2024 WARRANT AGENCY AGREEMENT WARRANT AGENCY AGREEMENT, dated as of May [], 2024 (“Agreement”), by and between Aqua Metals, Inc., a Delaware corporation (the “Company”), and VStock Transfer, LLC, a New York limited liability trust company (“VStock” or the “Warrant Agent”). W I T N

May 15, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended March 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission file number: 001-37515

May 15, 2024 EX-4.3

Form of Underwriter Warrant to be issued to the Benchmark Company, LLC

Exhibit 4.3 THE REGISTERED HOLDER OF THIS PURCHASE WARRANT BY ITS ACCEPTANCE HEREOF, AGREES THAT IT WILL NOT SELL, TRANSFER OR ASSIGN THIS PURCHASE WARRANT EXCEPT AS HEREIN PROVIDED AND THE REGISTERED HOLDER OF THIS PURCHASE WARRANT AGREES THAT IT WILL NOT SELL, TRANSFER, ASSIGN, PLEDGE OR HYPOTHECATE THIS PURCHASE WARRANT FOR A PERIOD OF ONE HUNDRED EIGHTY DAYS FOLLOWING MAY 14, 2024 (THE “EFFECT

May 15, 2024 EX-99.2

Aqua Metals Prices $7 Million Public Offering of Common Stock and Warrants Funds Raised in Support of a $33 Million Term Sheet with One of the World’s Largest Privately Held Companies

Exhibit 99.2 Aqua Metals Prices $7 Million Public Offering of Common Stock and Warrants Funds Raised in Support of a $33 Million Term Sheet with One of the World’s Largest Privately Held Companies RENO, Nev., May 15, 2024 (GLOBE NEWSWIRE) - Aqua Metals, Inc. (Nasdaq: AQMS) (“Aqua Metals” or the “Company”), a pioneer in sustainable lithium-ion battery recycling, today announced that it priced its p

May 14, 2024 424B5

Subject to completion, dated May 14, 2024

Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-267780 The information in this preliminary prospectus supplement is not complete and may be changed. A registration statement related to these securities has been declared effective by the Securities and Exchange Commission. This preliminary prospectus supplement and the accompanying prospectus are not an offer to sell these s

April 16, 2024 DEF 14A

United States Securities and Exchange Commission Washington, D.C. 20549 SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934

Table of Contents United States Securities and Exchange Commission Washington, D.C. 20549 SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)

April 10, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 4, 2024 AQUA METALS, INC. (Ex

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 4, 2024 AQUA METALS, INC.

April 4, 2024 PRE 14A

United States Securities and Exchange Commission Washington, D.C. 20549 SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934

Table of Contents United States Securities and Exchange Commission Washington, D.C. 20549 SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)

March 28, 2024 EX-4.4

Warrant dated July 21, 2023 issued to The Benchmark Company, LLC

Exhibit 4.4 UNDERWRITER WARRANT AGREEMENT THE REGISTERED HOLDER OF THIS PURCHASE WARRANT BY ITS ACCEPTANCE HEREOF, AGREES THAT IT WILL NOT SELL, TRANSFER OR ASSIGN THIS PURCHASE WARRANT EXCEPT AS HEREIN PROVIDED AND THE REGISTERED HOLDER OF THIS PURCHASE WARRANT AGREES THAT IT WILL NOT SELL, TRANSFER, ASSIGN, PLEDGE OR HYPOTHECATE THIS PURCHASE WARRANT FOR A PERIOD OF ONE HUNDRED EIGHTY DAYS FOLLO

March 28, 2024 EX-99.1

Aqua Metals Executive Officer Clawback Policy

Exhibit 99.1 AQUA METALS, INC. Executive Officer Clawback Policy Approved by the Board of Directors on November 9, 2023 (the “Adoption Date”) I. Purpose This Executive Officer Clawback Policy describes the circumstances under which Covered Persons of Aqua Metals, Inc., a Delaware corporation and any of its direct or indirect subsidiaries (the “Company”) will be required to repay or return Erroneou

March 28, 2024 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 or ☐ TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-37515 Aqua Metals, Inc. (Exact name o

March 28, 2024 EX-10.14

Amended and Restated Executive Employment Agreement dated August 7, 2023 between the Registrant and Dave McMurtry

Exhibit 10.14 AMENDED AND RESTATED EXECUTIVE EMPLOYMENT AGREEMENT THIS AMENDED AND RESTATED EXECUTIVE EMPLOYMENT AGREEMENT is entered into effective as of August 7, 2023 between AQUA METALS, INC., a Delaware corporation (“Company”) and David McMurtry (“Employee”) (collectively, the “Parties,” and individually, a “Party”), and constitutes an amendment and restatement to that certain Executive Emplo

March 28, 2024 EX-10.13

Amended and Restated Executive Employment Agreement dated August 7, 2023 between the Registrant and Benjamin Taecker

Exhibit 10.13 AMENDED AND RESTATED EXECUTIVE EMPLOYMENT AGREEMENT THIS AMENDED AND RESTATED EXECUTIVE EMPLOYMENT AGREEMENT is entered into effective as of August 7, 2023 between AQUA METALS, INC., a Delaware corporation (“Company”) and Benjamin Taecker (“Employee”) (collectively, the “Parties,” and individually, a “Party”), and constitutes an amendment and restatement to that certain Executive Emp

March 28, 2024 EX-10.3

Loan Agreement dated January 27, 2023 with Summit Investment Services, LLC

Exhibit 10.3 LOAN AGREEMENT THIS LOAN AGREEMENT (this "Agreement") is entered into to be effective as of January 27, 2023, by and between SUMMIT INVESTMENT SERVICES, LLC, a Nevada limited liability company ("Lender") and AQUA METALS RENO, INC., a Delaware corporation ("Borrower"). RECITALS Borrower has requested that Lender extend credit to Borrower as described below, and Lender has agreed to pro

March 28, 2024 EX-10.12

Amended and Restated Executive Employment Agreement dated August 7, 2023 between the Registrant and Judd Merrill

Exhibit 10.12 AMENDED AND RESTATED EXECUTIVE EMPLOYMENT AGREEMENT THIS AMENDED AND RESTATED EXECUTIVE EMPLOYMENT AGREEMENT is entered into effective as of August 7, 2023 between AQUA METALS, INC., a Delaware corporation (“Company”) and Judd Merrill (“Employee”) (collectively, the “Parties,” and individually, a “Party”), and constitutes an amendment and restatement to that certain Executive Employm

March 28, 2024 EX-10.11

Amended and Restated Executive Employment Agreement dated August 7, 2023 between the Registrant and Stephen Cotton

Exhibit 10.11 AMENDED AND RESTATED EXECUTIVE EMPLOYMENT AGREEMENT THIS AMENDED AND RESTATED EXECUTIVE EMPLOYMENT AGREEMENT is entered into effective as of August 7, 2023 between AQUA METALS, INC., a Delaware corporation (“Company”) and Stephen Cotton (“Employee”) (collectively, the “Parties,” and individually, a “Party”), and constitutes an amendment and restatement to that certain Executive Emplo

March 28, 2024 EX-21.1

List of subsidiaries of Registrant.

Exhibit 21.1 The following are the wholly-owned subsidiaries of Aqua Metals, Inc.: Aqua Metals Reno, Inc., a Delaware Corporation Aqua Metals Operations, Inc., a Delaware Corporation Aqua Metals Waltham 1, LLC, a Nevada limited liability company Aqua Metals Waltham Holding, LLC, a Nevada limited liability company

March 28, 2024 EX-4.3

Warrant dated August 4, 2023 issued to Network 1 Financial Services, Inc.

Exhibit 4.3 NEITHER THESE SECURITIES NOR THE SECURITIES ISSUABLE UPON EXERCISE OF THESE SECURITIES HAVE BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE IN RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”) AND APPLICABLE STATE SECURITIES LAWS AND, ACCORDINGLY, MAY NOT BE OFFERED OR S

March 27, 2024 EX-99.1

Aqua Metals Advances Sierra-ARC Lithium Battery Recycling Campus and Secures Offtake Partnership; Reports Full-Year 2023 Financial Results

Exhibit 99.1 Aqua Metals Advances Sierra-ARC Lithium Battery Recycling Campus and Secures Offtake Partnership; Reports Full-Year 2023 Financial Results RENO, Nev., March 27, 2024 – Aqua Metals, Inc. (NASDAQ: AQMS), a pioneer in sustainable lithium-ion battery recycling, today reported financial results for the full-year ended December 31, 2023. Full-Year 2023 Financial and Recent Operational Highl

March 27, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 27, 2024 AQUA METALS, INC.

February 12, 2024 SC 13G/A

AQMS / Aqua Metals, Inc. / BAIRD ROBERT W & CO INC /WI/ - AMENDED SCHEDULE FILED TO REPORT ACQUISITION OF BENEFICIAL OWNERSHIP 12-31-23 Passive Investment

SC 13G/A 1 rwbciami-sc13ga.htm AMENDED SCHEDULE FILED TO REPORT ACQUISITION OF BENEFICIAL OWNERSHIP 12-31-23 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 1)* Aqua Metals, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 03837J101 (CUSIP Number) December 31, 2023 (Date of Event Which R

November 24, 2023 8-K

Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 24, 2023 AQUA METALS, INC.

November 8, 2023 EX-99.1

Aqua Metals Strengthens Balance Sheet and Secures Strategic Investment and Partnerships During Third Quarter of 2023 Receives recognition for sustainability innovation and partnership validation of lithium battery recycling solution

Exhibit 99.1 Aqua Metals Strengthens Balance Sheet and Secures Strategic Investment and Partnerships During Third Quarter of 2023 Receives recognition for sustainability innovation and partnership validation of lithium battery recycling solution RENO, Nev., November 8, 2023 (GLOBE NEWSWIRE) - Aqua Metals, Inc. (NASDAQ: AQMS) (“Aqua Metals" or the "Company”), a pioneer in sustainable lithium batter

November 8, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 8, 2023 AQUA METALS, INC.

November 8, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended September 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission file number: 001-37

September 29, 2023 EX-16.1

Letter from Armanino LLP, Dated September 29, 2023

Exhibit 16.1 September 29, 2023 Securities and Exchange Commission 100 F Street, N.E. Washington, D.C. 20549 Commissioners: We have read Item 4.01 of the Current Report on Form 8-K of Aqua Metals, Inc. dated September 29, 2023, which we understand will be filed with the Securities and Exchange Commission, and we agree with the statements concerning our firm contained in such Form 8-K. We have no b

September 29, 2023 8-K

Financial Statements and Exhibits, Changes in Registrant's Certifying Accountant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): September 29, 2023 AQUA METALS, INC.

September 20, 2023 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): September 14, 2023 AQUA METALS, INC.

August 11, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 7, 2023 AQUA METALS, INC. (E

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 7, 2023 AQUA METALS, INC.

August 9, 2023 EX-99.1

Aqua Metals Completes Industry-First Pilot Plant, Advances Commerical-Scale Operations, Strengthens Balance Sheet During Second Quarter of 2023 Company producing high-purity, salable quantities of critical battery materials and metals, to generate re

Exhibit 99.1 Aqua Metals Completes Industry-First Pilot Plant, Advances Commerical-Scale Operations, Strengthens Balance Sheet During Second Quarter of 2023 Company producing high-purity, salable quantities of critical battery materials and metals, to generate revenue this year RENO, Nev., August 9, 2023 (GLOBE NEWSWIRE) - Aqua Metals, Inc. (NASDAQ: AQMS) (“Aqua Metals" or the "Company”), a pionee

August 9, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended June 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission file number: 001-37515 A

August 9, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 9, 2023 AQUA METALS, INC. (E

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 9, 2023 AQUA METALS, INC.

July 28, 2023 EX-16.1

Letter from Armanino LLP, Dated July 27, 2023

Exhibit 16.1 July 27, 2023 Securities and Exchange Commission 100 F Street, N.E. Washington, D.C. 20549 Commissioners: We have read Item 4.01 of the Current Report on Form 8-K of Aqua Metals, Inc. dated July 24, 2023, which we understand will be filed with the Securities and Exchange Commission, and we agree with the statements concerning our firm contained in such Form 8-K. We have no basis to ag

July 28, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 24, 2023 AQUA METALS, INC. (Ex

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 24, 2023 AQUA METALS, INC.

July 21, 2023 424B5

4,545,455 Shares of Common Stock

Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-267780 PROSPECTUS SUPPLEMENT (to the Prospectus dated October 19, 2022) 4,545,455 Shares of Common Stock Pursuant to this prospectus supplement and the accompanying base prospectus, we are issuing 4,545,455 shares of our common stock to Yulho Co., Ltd. pursuant to a securities purchase agreements dated July 18, 2023 between us

July 21, 2023 EX-10.1

Securities Purchase Agreement dated as of July 18, 2023 between the Company and Yulho Co., Ltd

Exhibit 10.1 SECURITIES PURCHASE AGREEMENT This Securities Purchase Agreement (this “Agreement”) is dated as of July 18, 2023 by and between Aqua Metals, Inc., a Delaware corporation (the “Company”), and Yulho Co., Ltd., a company organized under the laws of the Republic of Korea (the “Purchaser”). The above parties are referred to herein together as the “Parties,” and individually as a “Party.” R

July 21, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 18, 2023 AQUA METALS, INC. (Ex

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 18, 2023 AQUA METALS, INC.

July 20, 2023 424B5

15,820,000 Shares of Common Stock

Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-267780 PROSPECTUS SUPPLEMENT (to the Prospectus dated October 19, 2022) 15,820,000 Shares of Common Stock We are selling 15,820,000 shares of our common stock. Our common stock is listed on the NASDAQ Capital Market under the symbol “AQMS.” On July 17, 2023, the last reported sales price of our common stock on the NASDAQ Capit

July 19, 2023 EX-1.1

Underwriting Agreement dated as of July 18, 2023 between the Company and The Benchmark Company, LLC

Exhibit 1.1 AQUA METALS, INC. 15,820,000 SHARES OF COMMON STOCK UNDERWRITING AGREEMENT July 18, 2023 The Benchmark Company, LLC 150 East 58th Street, 17th Floor New York, NY 10155 Ladies and Gentlemen: Aqua Metals, Inc., a Delaware corporation (the “Company”), proposes, subject to the terms and conditions stated in this agreement (this “Agreement”), to issue and sell to The Benchmark Company, LLC

July 19, 2023 EX-99.1

July 18, 2023

Exhibit 99.1 July 18, 2023 Aqua Metals Announces Proposed Public Offering of Common Stock RENO, Nevada, July 18, 2023 (GLOBE NEWSWIRE) – Aqua Metals, Inc. (Nasdaq: AQMS) (“Aqua Metals” or the “Company”), a pioneer in sustainable lithium-ion battery recycling, today announced that it intends to offer and sell shares of its common stock in an underwritten public offering. All of the shares of common

July 19, 2023 EX-99.2

July 19, 2023

Exhibit 99.2 July 19, 2023 Aqua Metals Prices $17.4 Million Public Offering of Common Stock RENO, Nevada, July 19, 2023 (GLOBE NEWSWIRE) – Aqua Metals, Inc. (Nasdaq: AQMS) (“Aqua Metals” or the “Company”), a pioneer in sustainable lithium-ion battery recycling, today announced that it has priced its underwritten public offering of 15,820,000 shares of its common stock at a public offering price of

July 19, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 18, 2023 AQUA METALS, INC. (Ex

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 18, 2023 AQUA METALS, INC.

July 18, 2023 424B5

SUBJECT TO COMPLETION, DATED JULY 18, 2023

Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-267780 This preliminary prospectus supplement relates to an effective registration statement under the Securities Act of 1933, as amended, but the information in this preliminary prospectus supplement is not complete and may be changed. This preliminary prospectus supplement and the accompanying base prospectus are not an offe

July 6, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 5, 2023 AQUA METALS, INC. (Exa

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 5, 2023 AQUA METALS, INC.

June 21, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 15, 2023 AQUA METALS, INC. (Ex

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 15, 2023 AQUA METALS, INC.

May 19, 2023 DEFA14A

United States Securities and Exchange Commission Washington, D.C. 20549 SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934

United States Securities and Exchange Commission Washington, D.C. 20549 SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Pro

May 11, 2023 DEFA14A

United States Securities and Exchange Commission Washington, D.C. 20549 SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934

United States Securities and Exchange Commission Washington, D.C. 20549 SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Pro

May 4, 2023 EX-99.1

Aqua Metals Produces High-Value Minerals at Pilot Plant, Secures Site to Expand Commercial Operations, During First Quarter of 2023 Achievements in low-carbon battery materials by Aqua Metals propel partnership with cathode manufacturer 6K Energy

Exhibit 99.1 Aqua Metals Produces High-Value Minerals at Pilot Plant, Secures Site to Expand Commercial Operations, During First Quarter of 2023 Achievements in low-carbon battery materials by Aqua Metals propel partnership with cathode manufacturer 6K Energy RENO, Nev., May 4, 2023 (GLOBE NEWSWIRE) - Aqua Metals, Inc. (NASDAQ: AQMS) (“Aqua Metals" or the "Company”), a pioneer in sustainable lithi

May 4, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 4, 2023 AQUA METALS, INC.

May 4, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended March 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission file number: 001-37515

April 26, 2023 8-K

Triggering Events That Accelerate or Increase a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement, Completion of Acquisition or Disposition of Assets

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 26, 2023 AQUA METALS, INC.

April 5, 2023 DEF 14A

United States Securities and Exchange Commission Washington, D.C. 20549 SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934

Table of Contents United States Securities and Exchange Commission Washington, D.C. 20549 SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)

April 4, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 31, 2023 AQUA METALS, INC. (E

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 31, 2023 AQUA METALS, INC.

March 21, 2023 PRE 14A

United States Securities and Exchange Commission Washington, D.C. 20549 SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934

PRE 14A 1 aqms20230304pre14a.htm FORM PRE 14A Table of Contents United States Securities and Exchange Commission Washington, D.C. 20549 SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy Statement ☐ Confidential, for Use of the Com

March 9, 2023 EX-10.8

Employment Agreement dated August 9, 2021 between the Registrant and Dave McMurtry

Exhibit 10.8 AQUA METALS, INC. EXECUTIVE EMPLOYMENT AGREEMENT THIS EXECUTIVE EMPLOYMENT AGREEMENT is entered into on August 9, 2021, to be effective on August 1, 2021 (“Effective Date”) between AQUA METALS, INC., a Delaware corporation (“Company”), and Benjamin Tarcker (“Employee”). 1. EMPLOYMENT. Company hereby employs Employee in accordance with the terms of this Agreement and all the policies a

March 9, 2023 EX-21.1

List of subsidiaries of Registrant.

Exhibit 21.1 The following are the wholly-owned subsidiaries of Aqua Metals, Inc.: Aqua Metals Reno, Inc., a Delaware Corporation Aqua Metals Operations, Inc., a Delaware Corporation

March 9, 2023 EX-10.7

Employment Agreement dated August 9, 2021 between the Registrant and Benjamin Taecker

Exhibit 10.7 AQUA METALS, INC. EXECUTIVE EMPLOYMENT AGREEMENT THIS EXECUTIVE EMPLOYMENT AGREEMENT is entered into on July 22, 2022, to be effective on July 22, 2022 (“Effective Date”) between AQUA METALS, INC., a Delaware corporation (“Company”), and Dave McMurtry (“Employee”). 1. EMPLOYMENT. Company hereby employs Employee in accordance with the terms of this Agreement and all the policies and pr

March 9, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 9, 2023 AQUA METALS, INC.

March 9, 2023 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 or ☐ TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-37515 Aqua Metals, Inc. (Exact name o

March 9, 2023 EX-10.10

Loan Agreement dated September 30, 2022 with Summit Investment Services, LLC

Exhibit 10.10 LOAN AGREEMENT THIS LOAN AGREEMENT (this "Agreement") is entered into to be effective as of September 29, 2022, by and between SUMMIT INVESTMENT SERVICES, LLC, a Nevada limited liability company as to an undivided 90.8334% interest, DARREN MCBRIDE, TRUSTEE OF THE ARDUINO 1 TRUST, U/A DATED APRIL 25, 2022, as to an undivided 8.3333% interest and JASON YELOWITZ, TRUSTEE OF THE JASON YE

March 9, 2023 EX-99.1

Aqua Metals Reports 2022 Financial Results Commissioning of Lithium Pilot Plant in Reno, Securing of Future Commercial Site, Drive Optimism for 2023 and Beyond

Exhibit 99.1 Aqua Metals Reports 2022 Financial Results Commissioning of Lithium Pilot Plant in Reno, Securing of Future Commercial Site, Drive Optimism for 2023 and Beyond RENO, Nev., March 9, 2023 (GLOBE NEWSWIRE) - Aqua Metals, Inc. (NASDAQ: AQMS) (“Aqua Metals" or the "Company”), which is reinventing metals recycling with its AquaRefining™ technology, today announced financial results and prov

February 15, 2023 SC 13G

AQMS / Aqua Metals Inc / Cushner Alex Scott - SC 13G Passive Investment

SC 13G 1 d370126dsc13g.htm SC 13G SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 Name of issuer: Aqua Metals, Inc. Title of Class of Securities: Common Stock CUSIP Number: 03837J101 Date of Event Which Requires Filing of this Statement: December 31, 2022 Check the appropriate box to designate the rule pursuant to which this Schedule

February 9, 2023 SC 13G

AQMS / Aqua Metals Inc / BAIRD ROBERT W & CO INC /WI/ - SCHEDULE FILED TO REPORT ACQUISITION OF BENEFICIAL OWNERSHIP 12-31-22 Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No.)* Aqua Metals, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 03837J101 (CUSIP Number) December 31, 2022 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule

February 6, 2023 8-K

Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Completion of Acquisition or Disposition of Assets

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 1, 2023 AQUA METALS, INC.

January 17, 2023 8-K

Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): January 17, 2023 AQUA METALS, INC.

December 19, 2022 EX-99.1

Aqua Metals, Inc. 2022 Employee Stock Purchase Plan

Exhibit 99.1 AQUA METALS, INC. 2022 EMPLOYEE STOCK PURCHASE PLAN ARTICLE I PURPOSE The purposes of this Aqua Metals, Inc. 2022 Employee Stock Purchase Plan (the “Plan”) are to assist Eligible Employees of Aqua Metals, Inc., a Delaware corporation (the “Company”) and its Subsidiaries in acquiring a stock ownership interest in the Company pursuant to a plan which is intended to help Eligible Employe

December 19, 2022 EX-FILING FEES

Fee Calculation Table

Exhibit 107 Calculation of Filing Fee Tables Form S-8 (Form Type) Aqua Metals, Inc.

December 19, 2022 S-8

As filed with the Securities and Exchange Commission on December 19, 2022

As filed with the Securities and Exchange Commission on December 19, 2022 Registration No.

November 3, 2022 EX-99.1

Aqua Metals Reports Strengthened Balance Sheet, Continued Operational Progress, During Third Quarter of 2022 Lithium Pilot Plant in Reno and Lead Refining in Taiwan Continue On Schedule

Exhibit 99.1 Aqua Metals Reports Strengthened Balance Sheet, Continued Operational Progress, During Third Quarter of 2022 Lithium Pilot Plant in Reno and Lead Refining in Taiwan Continue On Schedule Reno, Nev., November 3, 2022 (GLOBE NEWSWIRE) - Aqua Metals, Inc. (NASDAQ: AQMS) (?Aqua Metals" or the "Company?), which is reinventing metals recycling with its AquaRefining? technology, today announc

November 3, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended September 30, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission file number: 001-37

November 3, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 3, 2022 AQUA METALS, INC.

October 17, 2022 CORRESP

October 17, 2022

CORRESP 1 filename1.htm October 17, 2022 VIA EDGAR U.S. Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.E. Washington, D.C. 20549 Attn: Thomas Jones Re: Aqua Metals, Inc. Registration Statement on Form S-3 File No. 333-267780 Acceleration Request Requested Date: Wednesday, October 19, 2022 Requested Time: 4:30 p.m., Eastern Time Ladies and Gentlemen: In accordanc

October 7, 2022 EX-4.3

Form of Senior Note

Exhibit 4.3 Form of Senior Note (FACE OF SECURITY) [Each Global Security shall bear substantially the following legend: UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN PART FOR SECURITIES IN DEFINITIVE REGISTERED FORM, THIS SECURITY MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY THE DEPOSITARY TO A NOMINEE OF THE DEPOSITARY OR BY A NOMINEE OF THE DEPOSITARY TO THE DEPOSITARY OR ANOTHER NOMINEE OF THE

October 7, 2022 EX-4.2

Form of Subordinated Indenture

Exhibit 4.2 AQUA METALS, INC. and Trustee INDENTURE Dated as of SUBORDINATED DEBT SECURITIES CROSS-REFERENCE TABLE(1) Section of Trust Indenture Act of 1939, as amended Section of Indenture 310(a) 6.09 310(b) 6.08 6.10 310(c) Inapplicable 311(a) 6.13 311(b) 6.13 311(c) Inapplicable 312(a) 4.01 4.04 312(b) 4.04(c) 312(c) 4.04(c) 313(a) 4.03 313(b) 4.03 313(c) 4.03 313(d) 4.03 314(a) 4.02 314(b) Ina

October 7, 2022 EX-4.1

Form of Senior Indenture

Exhibit 4.1 AQUA METALS, INC. and Trustee INDENTURE Dated as of SENIOR DEBT SECURITIES CROSS-REFERENCE TABLE(1) Section of Trust Indenture Act of 1939, as amended Section of Indenture 310(a) 6.09 310(b) 6.08 6.10 310(c) Inapplicable 311(a) 6.13 311(b) 6.13 311(c) Inapplicable 312(a) 4.01 4.04 312(b) 4.04(c) 312(c) 4.04(c) 313(a) 4.03 313(b) 4.03 313(c) 4.03 313(d) 4.03 314(a) 4.02 314(b) Inapplica

October 7, 2022 EX-FILING FEES

Filing Fee Table

EX-FILING FEES 8 ex430022.htm EXHIBIT FILING FEES Exhibit 107 Calculation of Filing Fee Tables Form S-3 (Form Type) Aqua Metals, Inc.. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered (a) Proposed Maximum Offering Price Per Unit Maximum Aggregate O

October 7, 2022 S-3

As filed with the Securities and Exchange Commission on October 7, 2022

Table of Contents As filed with the Securities and Exchange Commission on October 7, 2022 Registration No.

October 7, 2022 EX-4.4

Form of Subordinated Note

Exhibit 4.4 Form of Subordinated Note (FACE OF SECURITY) [Each Global Security shall bear substantially the following legend: UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN PART FOR SECURITIES IN DEFINITIVE REGISTERED FORM, THIS SECURITY MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY THE DEPOSITARY TO A NOMINEE OF THE DEPOSITARY OR BY A NOMINEE OF THE DEPOSITARY TO THE DEPOSITARY OR ANOTHER NOMINEE

October 6, 2022 8-K

Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): September 30, 2022 AQUA METALS, INC.

September 1, 2022 POS EX

As filed with the Securities and Exchange Commission on September 1, 2022

As filed with the Securities and Exchange Commission on September 1, 2022 Registration No.

August 24, 2022 EX-FILING FEES

Filing Fee Table

Exhibit 107 Calculation of Filing Fee Tables Form S-8 (Form Type) Aqua Metals, Inc.

August 24, 2022 S-8

Power of Attorney

As filed with the Securities and Exchange Commission on August 24, 2022 Registration No.

August 5, 2022 8-K

Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 2, 2022 AQUA METALS, INC.

August 1, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 1, 2022 Aqua Metals, Inc.

August 1, 2022 EX-99.1

Aqua Metals Appoints David Kanen to Board of Directors Experienced Investor Joins Board With a Long-term View to Support Value Creation

Exhibit 99.1 Aqua Metals Appoints David Kanen to Board of Directors Experienced Investor Joins Board With a Long-term View to Support Value Creation Reno, Nev., July 28, 2022 (GLOBE NEWSWIRE) - Aqua Metals, Inc. (NASDAQ: AQMS) (?Aqua Metals" or the "Company?), which is reinventing metals recycling with its AquaRefining? technology, today announced that it has named David Kanen, an experienced inve

July 28, 2022 EX-99.1

Aqua Metals Appoints Dave McMurtry as Chief Business Officer McMurtry Brings Decades of Successful Business Plan Execution and Value Creation for Entrepreneurial and Large Organizations

Exhibit 99.1 July 27, 2022 Aqua Metals Appoints Dave McMurtry as Chief Business Officer McMurtry Brings Decades of Successful Business Plan Execution and Value Creation for Entrepreneurial and Large Organizations RENO, Nev., July 27, 2022 (GLOBE NEWSWIRE) - Aqua Metals, Inc. (NASDAQ: AQMS) ("Aqua Metals" or the "Company"), an innovator in metals recycling with its AquaRefining? technology, has app

July 28, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 22, 2022 AQUA METALS, INC.

July 21, 2022 EX-99.1

Aqua Metals Advances Key Strategic Initiatives During Second Quarter 2022 Company remains on plan to for revenue generation in 2023

Exhibit 99.1 NEWS RELEASE For Immediate Release Contact: Glen Akselrod, Bristol Capital (905) 326-1888, Ext. 1 [email protected] Aqua Metals Advances Key Strategic Initiatives During Second Quarter 2022 Company remains on plan to for revenue generation in 2023 Second Quarter and Recent Highlights: ? Aqua Metals has successfully recovered all the high-value metals from used lithium-ion batteries,

July 21, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 21, 2022 AQUA METALS, INC.

July 21, 2022 EX-3.5

Certificate of Amendment to the First Amended and Restated Certificate of Incorporation

Exhibit 3.5 CERTIFICATE OF AMENDMENT TO THE FIRST AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF AQUA METALS, INC. Aqua Metals, Inc., a corporation organized and existing under and by virtue of the General Corporation Law of the State of Delaware (the ?Corporation?), does hereby certify: 1. That at a meeting of the Board of Directors of Aqua Metals, Inc., resolutions were duly adopted settin

July 21, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended June 30, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission file number: 001-37515 A

June 13, 2022 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 7, 2022 AQUA METALS, INC.

May 16, 2022 DEFA14A

United States Securities and Exchange Commission Washington, D.C. 20549 SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934

DEFA14A 1 aqms20220516defa14a.htm FORM DEFA14A United States Securities and Exchange Commission Washington, D.C. 20549 SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as

April 28, 2022 EX-99.1

Aqua Metals Announces First Quarter 2022 Results

Exhibit 99.1 NEWS RELEASE For Immediate Release Contact: Glen Akselrod, Bristol Capital (905) 326-1888, Ext. 1 [email protected] Aqua Metals Announces First Quarter 2022 Results First Quarter and Recent Highlights: ? Continued AquaRefining equipment shipments to first Asia Pacific partner, ACME Metal. Sourced in-country equipment. All remaining equipment needed for phase one implementation shippi

April 28, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 28, 2022 AQUA METALS, INC.

April 28, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended March 31, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission file number: 001-37515

April 25, 2022 DEF 14A

United States Securities and Exchange Commission Washington, D.C. 20549 SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934

Table of Contents United States Securities and Exchange Commission Washington, D.C. 20549 SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)

April 13, 2022 PRE 14A

United States Securities and Exchange Commission Washington, D.C. 20549 SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934

Table of Contents United States Securities and Exchange Commission Washington, D.C. 20549 SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)

March 30, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 24, 2022 AQUA METALS, INC.

February 24, 2022 EX-99.1

Aqua Metals Announces 2021 Results

Exhibit 99.1 NEWS RELEASE For Immediate Release Contact: Glen Akselrod, Bristol Capital (905) 326-1888, Ext. 1 [email protected] Aqua Metals Announces 2021 Results Recent Highlights: ? Signed a definitive agreement with ACME Metal Enterprise Co., Ltd. (ACME) to deploy and license AquaRefining equipment and technologies at its facility in Keelung, Taiwan. ? Commenced AquaRefining equipment shipmen

February 24, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 24, 2022 AQUA METALS, INC.

February 24, 2022 EX-21.1

List of subsidiaries of Registrant.

Exhibit 21.1 The following are the wholly-owned subsidiaries of Aqua Metals, Inc.: Aqua Metals Reno, Inc., a Delaware Corporation Aqua Metals Operations, Inc., a Delaware Corporation

February 24, 2022 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 or ☐ TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-37515 Aqua Metals, Inc. (Exact name o

January 21, 2022 8-K

Regulation FD Disclosure, Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): January 19, 2022 AQUA METALS, INC.

January 21, 2022 EX-3.1

Third Amended and Restated Bylaws of the Registrant

Exhibit 3.1 THIRD AMENDED AND RESTATED BYLAWS OF AQUA METALS, INC., A DELAWARE CORPORATION Adopted on January 19, 2022 TABLE OF CONTENTS Page Article I IDENTIFICATION; OFFICES 1 SECTION 1.1. Name 1 SECTION 1.2. Principal Office; Other Offices 1 Article II STOCKHOLDERS 1 SECTION 2.1. Annual Meeting 1 SECTION 2.2. Special Meeting 1 SECTION 2.3. Place of Stockholder Meetings 1 SECTION 2.4. Notice of

November 4, 2021 EX-99.1

Aqua Metals Announces Third Quarter 2021 Results

Exhibit 99.1 NEWS RELEASE For Immediate Release Contact: Glen Akselrod, Bristol Capital (905) 326-1888, Ext. 1 [email protected] Aqua Metals Announces Third Quarter 2021 Results Third Quarter and Recent Highlights: ? Established Aqua Metals Innovation Center for development of lithium-ion battery recycling solution utilizing proven AquaRefining technology ? Completed third generation Aqualyzer; a

November 4, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended September 30, 2021 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission file number: 001-37

November 4, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 4, 2021 AQUA METALS, INC.

October 27, 2021 EX-99.1

Corporate Presentation dated October 27, 2021

Exhibit 99.1

October 27, 2021 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): October 27, 2021 AQUA METALS, INC.

September 24, 2021 8-K

Termination of a Material Definitive Agreement

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): September 20, 2021 AQUA METALS, INC.

September 17, 2021 8-K/A

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K/A CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 11, 2021 AQUA METALS, INC.

August 30, 2021 EX-99.1

IN THE UNITED STATES DISTRICT COURT FOR THE DISTRICT OF DELAWARE

Exhibit 99.1 IN THE UNITED STATES DISTRICT COURT FOR THE DISTRICT OF DELAWARE IN RE AQUA METALS, INC. STOCKHOLDER DERIVATIVE LITIGATION Master File No.: 1:18-cv-00201-LPS STIPULATION OF SETTLEMENT This Stipulation of Settlement, dated August 18, 2021 (the ?Stipulation? or the ?Settlement?), is made and entered into by and among the following Settling Parties, by and through their respective counse

August 30, 2021 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 30, 2021 AQUA METALS, INC.

August 13, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 10, 2021 AQUA METALS, INC.

July 29, 2021 EX-10.1

Third Amendment to Equipment Supply Agreement dated June 30, 2021 between the Registrant and Clarios, LLC

Exhibit 10.1 THIRD AMENDMENT TO EQUIPMENT SUPPLY AGREEMENT THIS THIRD AMENDMENT TO EQUIPMENT SUPPLY AGREEMENT (this "Amendment"), dated as of June 30, 2021, is made by and between Clarios, LLC, a Wisconsin limited liability company formerly known as Johnson Controls Battery Group, Inc. ("Customer"), and Aqua Metals, Inc., a Delaware corporation ("Supplier"). Capitalized terms used and not otherwis

July 29, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended June 30, 2021 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission file number: 001-37515 A

July 29, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 29, 2021 AQUA METALS, INC.

July 29, 2021 EX-99.1

Aqua Metals Announces Second Quarter 2021 Results

Exhibit 99.1 NEWS RELEASE For Immediate Release Contact: Glen Akselrod, Bristol Capital (905) 326-1888, Ext. 1 [email protected] Aqua Metals Announces Second Quarter 2021 Results Second Quarter and Recent Highlights: ? Finalized definitive agreement to deploy and license AquaRefining technology in Taiwan to ACME Metal Enterprise Co. and proceed with first deployment ? Secured key new AquaRefining

May 14, 2021 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 11, 2021 AQUA METALS, INC.

April 29, 2021 10-Q

Quarterly Report - FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended March 31, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission file number: 001-37515

April 29, 2021 EX-99.1

Aqua Metals Announces First Quarter 2021 Results

Exhibit 99.1 NEWS RELEASE For Immediate Release Contact: Glen Akselrod, Bristol Capital (905) 326-1888, Ext. 1 [email protected] Aqua Metals Announces First Quarter 2021 Results First Quarter and Recent Highlights: ? Advanced discussions with several potential license and equipment supply partners ? Received first insurance payment of $1.4 million toward the business interruption claim, bringing

April 29, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 29, 2021 AQUA METALS, INC.

April 9, 2021 DEF 14A

- FORM DEF 14A

DEF 14A 1 aqms20210406def14a.htm FORM DEF 14A Table of Contents United States Securities and Exchange Commission Washington, D.C. 20549 SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Com

March 3, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 1, 2021 AQUA METALS, INC.

February 25, 2021 10-K

Annual Report - FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2020 or ? TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-37515 Aqua Metals, Inc. (Exact name o

February 25, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 25, 2021 AQUA METALS, INC.

February 25, 2021 EX-4.10

Description of Capital Stock

Exhibit 4.10 DESCRIPTION OF CAPITAL STOCK Aqua Metals, Inc. (?Company?, ?we?, ?us? and ?our?) has one class of securities registered under Section 12 of the Securities Exchange Act of 1934, as amended, namely our common stock, par value $0.001 per share. The following is a summary of the rights of our common and of certain provisions of our First Amended and Restated Certificate of Incorporation,

February 25, 2021 EX-99.1

Aqua Metals Announces 2020 Results

Exhibit 99.1 NEWS RELEASE For Immediate Release Contact: Glen Akselrod, Bristol Capital (905) 326-1888, Ext. 1 [email protected] Aqua Metals Announces 2020 Results Recent Highlights: ● Completed V1.25L Aqualyzer program; achieved a 100% improvement in lead production throughput, in addition to improved equipment and operating costs ● Continued progress with potential licensing partners; ongoing d

February 25, 2021 EX-21.1

List of subsidiaries of Registrant.

Exhibit 21.1 The following are the wholly-owned subsidiaries of Aqua Metals, Inc.: Aqua Metals Reno, Inc., a Delaware Corporation Aqua Metals Operations, Inc., a Delaware Corporation

February 19, 2021 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 19, 2021 AQUA METALS, INC.

February 19, 2021 424B5

Up to $30,000,000 Shares of Common Stock

424B5 1 aqms20210218424b5.htm FORM 424B5 Table of Contents Filed Pursuant to Rule 424(b)(5) Registration Statement No. 333-235238 PROSPECTUS SUPPLEMENT (to the Prospectus dated December 2, 2019) Up to $30,000,000 Shares of Common Stock Aqua Metals, Inc. has entered into an At the Market Issuance Sales Agreement, or the Sales Agreement, with B. Riley Securities, Inc., formerly known as B. Riley FBR

February 17, 2021 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 15, 2021 AQUA METALS, INC.

February 17, 2021 EX-10.2

Series A Preferred Stock Purchase Agreement dated February 15, 2021 between Aqua Metals, Inc. and LINICO Corporation

Exhibit 10.2 SERIES A PREFERRED STOCK PURCHASE AGREEMENT THIS SERIES A PREFERRED STOCK PURCHASE AGREEMENT (this ?Agreement?), is made as of is made as of February 15, 2021, by and among LINICO Corporation, a Nevada corporation (the ?Company?) Comstock Mining Inc., a Nevada corporation (?CMI?), and Aqua Metals, Inc., a Delaware corporation (?AQMS? together with CMI each a ?Investor? and together th

February 17, 2021 424B5

375,000 Shares Common Stock

424B5 1 aqms20210215424b5.htm FORM 424B5 Table of Contents Filed Pursuant to Rule 424(b)(5) Registration Statement No. 333-235238 PROSPECTUS SUPPLEMENT (to the Prospectus dated December 2, 2019) 375,000 Shares Common Stock Pursuant to this prospectus supplement and the accompanying base prospectus, we are issuing 375,000 shares of our common stock to a strategic partner pursuant to a stock purchas

February 17, 2021 EX-10.4

Voting Agreement dated February 15, 2021 between Aqua Metals, Inc. and LINICO Corporation

Exhibit 10.4 VOTING AGREEMENT THIS VOTING AGREEMENT (this ?Agreement?) is made and entered into as of February 15, 2021, by and among LINICO Corporation, a Nevada corporation (the ?Company?), each holder of the Series A Preferred Stock, $0.001 par value per share, of the Company (?Series A Preferred Stock?), listed on Schedule A (together with any subsequent investors, or transferees, who become p

February 17, 2021 EX-10.3

Investor Rights Agreement dated February 15, 2021 between Aqua Metals, Inc. and LINICO Corporation

Exhibit 10.3 INVESTORS? RIGHTS AGREEMENT THIS INVESTORS? RIGHTS AGREEMENT (this ?Agreement?), is made as of February 15, 2021, by and among LINICO Corporation, a Nevada corporation (the ?Company?), and each of the investors listed on Schedule A hereto, each of which is referred to in this Agreement as an ?Investor.? RECITALS WHEREAS, the Company and the Investors are parties to that certain Series

February 17, 2021 EX-10.1

Industrial Lease Agreement dated February 15, 2021 between Aqua Metals Reno Inc. and LINICO Corporation

Exhibit 10.1 INDUSTRIAL LEASE (SINGLE TENANT) BETWEEN AQUA METALS RENO INC. (Landlord) AND LINICO CORPORATION (Tenant) Premises: 2500 Peru Drive, McCarran, Nevada 89434 Date: February 15, 2021 THIS LEASE DATED as of February 15, 2021 BY AND BETWEEN: Aqua Metals Reno Inc., a Delaware corporation (hereinafter called the ?Landlord?) - and - Linico Corporation, a Nevada corporation (hereinafter called

January 25, 2021 SC 13G/A

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13G (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2 (Amendment No. 1)1 Aqua Me

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13G (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2 (Amendment No.

January 25, 2021 EX-99.1

Exhibit 99.1

Exhibit 99.1 JOINT FILING AGREEMENT In accordance with Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a Statement on Schedule 13G dated 01/25/2021 (including amendments thereto) with respect to the Common Stock of Famous Dave’s of America, Inc. This Joint Filing Agreement shall be filed as

January 15, 2021 SC 13D/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 6)* Aqua Metals, Inc. (Name of Issuer) COMMON STOCK, PAR VALUE $0.001 PER SHARE (Title of Class of Securitie

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 6)* Aqua Metals, Inc. (Name of Issuer) COMMON STOCK, PAR VALUE $0.001 PER SHARE (Title of Class of Securities) 03837J101 (CUSIP Number) Kelvin F. Sellers Interstate Emerging Investments, LLC Interstate Batteries, Inc. 12770 Merit Drive, Suite 1000 Dallas, Te

October 22, 2020 10-Q

Quarterly Report - FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended September 30, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission file number: 001-37

October 22, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): October 22, 2020 AQUA METALS, INC.

October 22, 2020 EX-99.1

Aqua Metals Announces Third Quarter 2020 Results Company Also Receives Additional Insurance Proceeds

EX-99.1 2 ex203023.htm EXHIBIT 99.1 Exhibit 99.1 NEWS RELEASE For Immediate Release Contact: Glen Akselrod, Bristol Capital (905) 326-1888, Ext. 1 [email protected] Aqua Metals Announces Third Quarter 2020 Results Company Also Receives Additional Insurance Proceeds Recent Highlights: • Received additional insurance payment of $0.7 million on October 20, bringing total collected to $22.6 million;

October 21, 2020 SC 13G

AQMS / Aqua Metals, Inc. / Philotimo Fund, LP - SCHEDULE 13G Passive Investment

SC 13G 1 ea128652-13gphiloaqua.htm SCHEDULE 13G SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13G (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2 (Amendment No. )1 Aqua Metals, Inc. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 0383

October 21, 2020 EX-99.1

JOINT FILING AGREEMENT

Exhibit 99.1 JOINT FILING AGREEMENT In accordance with Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a Statement on Schedule 13G dated October 21th,2020 (including amendments thereto) with respect to the Common Stock of Famous Dave’s of America, Inc. This Joint Filing Agreement shall be fi

October 8, 2020 SC 13D/A

AQMS / Aqua Metals, Inc. / Philotimo Fund, LP - AMENDMENT NO. 14 TO SCHEDULE 13D Activist Investment

SC 13D/A 1 ea127963-sc13da14philoaqua.htm AMENDMENT NO. 14 TO SCHEDULE 13D UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13D (Rule 13d-101) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULE 13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(a) (Amendment No. 14)1 Aqua Metals, Inc. (Name of Issuer) Common Stock, $0.001 par value (Title of Cla

August 18, 2020 S-8

-

S-8 1 forms-8.htm As filed with the Securities and Exchange Commission on August 18, 2020 Registration No. UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 Aqua Metals, Inc. (Exact name of registrant as specified in its charter) Delaware 47-1169572 (State or other jurisdiction of incorporation or organization)

August 7, 2020 SC 13D/A

AQMS / Aqua Metals, Inc. / Philotimo Fund, LP - AMENDMENT NO.13 TO SCHEDULE 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13D (Rule 13d-101) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULE 13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(a) (Amendment No.

August 4, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 4, 2020 AQUA METALS, INC.

August 4, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended June 30, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission file number: 001-37515 Aqua Metals, Inc. (

August 4, 2020 EX-99.1

Aqua Metals Announces Second Quarter 2020 Results

NEWS RELEASE For Immediate Release Contact: Glen Akselrod, Bristol Capital (905) 326-1888, Ext.

July 21, 2020 8-K

Other Events

8-K 1 form8-k.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 20, 2020 AQUA METALS, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-37515 47-1169572 (State or Other Jurisdiction of Incorporation) (Co

July 1, 2020 8-K

Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing

8-K 1 aqms8kq22020nasdaqlett.htm 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 30, 2020 AQUA METALS, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-37515 47-1169572 (State or Other Jurisdiction of

June 5, 2020 EX-1.1

At The Market Issuance Sales Agreement between B. Riley FBR, Inc. and Aqua Metals, Inc.

EX-1.1 2 ex1-1.htm Exhibit 1.1 AQUA METALS, INC. Common Stock (par value $0.001 per share) At Market Issuance Sales Agreement June 5, 2020 B. Riley FBR, Inc. 299 Park Avenue, 21st Floor New York, NY 10171 Ladies and Gentlemen: Aqua Metals, Inc., a Delaware corporation (the “Company”), confirms its agreement (this “Agreement”) with B. Riley FBR, Inc. (the “Agent”) as follows: 1. Issuance and Sale o

June 5, 2020 424B5

Up to $10,000,000 Shares of Common Stock

Filed Pursuant to Rule 424(b)(5) Registration Statement No. 333-235238 PROSPECTUS SUPPLEMENT (to the Prospectus dated December 2, 2019) Up to $10,000,000 Shares of Common Stock Aqua Metals, Inc. has entered into an At the Market Issuance Sales Agreement, or the Sales Agreement, with B. Riley FBR, Inc., or B. Riley FBR, relating to the sale of shares of our common stock, par value $0.001 per share,

June 5, 2020 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

8-K 1 form8-k.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 5, 2020 AQUA METALS, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-37515 47-1169572 (State or Other Jurisdiction of Incorporation) (Com

May 20, 2020 SC 13D/A

AQMS / Aqua Metals, Inc. / Philotimo Fund, LP - AMENDMENT NO.12 TO SCHEDULE 13D Activist Investment

SC 13D/A 1 ea122175-sc13da12philoaqua.htm AMENDMENT NO.12 TO SCHEDULE 13D UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13D (Rule 13d-101) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULE 13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(a) (Amendment No. 12)1 Aqua Metals, Inc. (Name of Issuer) Common Stock, $0.001 par value (Title of Clas

May 20, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing, Submission of Matters to a Vote of Security Holders

8-K 1 aqms8k2020annualmeetin.htm 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 19, 2020 AQUA METALS, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-37515 47-1169572 (State or Other Jurisdiction of

May 7, 2020 SC 13D/A

AQMS / Aqua Metals, Inc. / Philotimo Fund, LP - AMENDMENT NO. 11 TO SCHEDULE 13D Activist Investment

SC 13D/A 1 ea121495-sc13da11philoaqua.htm AMENDMENT NO. 11 TO SCHEDULE 13D UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13D (Rule 13d-101) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULE 13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(a) (Amendment No. 11)1 Aqua Metals, Inc. (Name of Issuer) Common Stock, $0.001 par value (Title of Cla

May 6, 2020 SC 13D/A

AQMS / Aqua Metals, Inc. / Philotimo Fund, LP - AMENDMENT NO. 10 TO SCHEDULE 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13D (Rule 13d-101) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULE 13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(a) (Amendment No.

April 30, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended March 31, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission file number: 001-37515 Aqua Metals, Inc.

April 30, 2020 EX-99.1

Aqua Metals Announces First Quarter 2020 Results

NEWS RELEASE For Immediate Release Contact: Glen Akselrod, Bristol Capital (905) 326-1888, Ext.

April 30, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 30, 2020 AQUA METALS, INC.

April 20, 2020 8-K

Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 17, 2020 AQUA METALS, INC.

April 16, 2020 DEF 14A

the information specifically incorporated by reference into our Annual Report on Form 10-K for the fiscal year ended December 31, 2019 from our Definitive Proxy Statement on Schedule 14A, filed on April 16, 2020;

DEF 14A 1 aqms2020proxy.htm DEF 14A United States Securities and Exchange Commission Washington, D.C. 20549 SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by Registrant [X] Filed by a Party other than the Registrant [ ] Check the appropriate box: [ ] Preliminary Proxy Statement [ ] Confidential, for Use of the Commission Only (as per

April 14, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 13, 2020 AQUA METALS, INC.

April 9, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 3, 2020 AQUA METALS, INC.

March 30, 2020 EX-10.1

Memorandum of Agreement dated March 25, 2020 between Aqua Metals, Inc. and Veritex Community Bank.

a101aqms-memorandumofagr MEMORANDUM OF AGREEMENT This Memorandum of Agreement (“ Agreement”) is hereby entered into by and between Aqua Metals Reno, Inc.

March 30, 2020 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 25, 2020 AQUA METALS, INC.

March 11, 2020 EX-99.2

Corporate Presentation March 11, 2020 Leading a Revolution In the Lead Acid Battery Industry Safe Harbor This document contains forward-looking statements concerning Aqua Metals, Inc. (“Aqua Metals”, the “Company,” “we,” “us,” and “our”). Forward-loo

aqmscorppres031120final Corporate Presentation March 11, 2020 Leading a Revolution In the Lead Acid Battery Industry Safe Harbor This document contains forward-looking statements concerning Aqua Metals, Inc.

March 11, 2020 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 11, 2020 AQUA METALS, INC.

March 11, 2020 EX-99.1

Aqua Metals Announces 2019 Results

NEWS RELEASE For Immediate Release Contact: Glen Akselrod, Bristol Capital (905) 326-1888, Ext.

March 11, 2020 10-K

Annual Report - 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2019 or ☐ TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-37515 Aqua Metals, Inc. (Exact name o

January 22, 2020 8-K

Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing

8-K 1 aqms8kq12020nasdaqlett.htm 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): January 15, 2020 AQUA METALS, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-37515 47-1169572 (State or Other Jurisdiction

December 2, 2019 EX-99.1

Aqua Metals Suffers Significant Fire Damage Management is Currently Reviewing Available Insurance Coverage for Plant/Equipment Damage and Business Interruption Losses in Effort to Fund Recovery

EX-99.1 2 ex99-1.htm NEWS RELEASE For Immediate Release Contact: Glen Akselrod, Bristol Capital (905) 326-1888, Ext. 1 [email protected] Aqua Metals Suffers Significant Fire Damage Management is Currently Reviewing Available Insurance Coverage for Plant/Equipment Damage and Business Interruption Losses in Effort to Fund Recovery MCCARRAN, NV., December 2, 2019 (GLOBE NEWSWIRE) — Aqua Metals, Inc.

December 2, 2019 8-K

Other Events, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 29, 2019 AQUA METALS, INC.

November 27, 2019 CORRESP

AQMS / Aqua Metals, Inc. CORRESP - -

CORRESP 1 filename1.htm November 27, 2019 VIA EDGAR U.S. Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.E. Washington, D.C. 20549 Attn: Thomas Jones Re: Aqua Metals, Inc. Registration Statement on Form S-3 File No. 333-235238 Acceleration Request Requested Date: Monday, December 2, 2019 Requested Time: 4:30 p.m., Eastern Daylight Time Ladies and Gentlemen: In ac

November 22, 2019 EX-4.3

Form of Senior Note

EX-4.3 5 ex4-3.htm Exhibit 4.3 Form of Senior Note (FACE OF SECURITY) [Each Global Security shall bear substantially the following legend: UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN PART FOR SECURITIES IN DEFINITIVE REGISTERED FORM, THIS SECURITY MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY THE DEPOSITARY TO A NOMINEE OF THE DEPOSITARY OR BY A NOMINEE OF THE DEPOSITARY TO THE DEPOSITARY OR ANO

November 22, 2019 EX-4.1

Form of Senior Indenture

Exhibit 4.1 AQUA METALS, INC. and Trustee INDENTURE Dated as of SENIOR DEBT SECURITIES CROSS-REFERENCE TABLE(1) Section of Trust Indenture Act of 1939, as amended Section of Indenture 310(a) 6.09 310(b) 6.08 6.10 310(c) Inapplicable 311(a) 6.13 311(b) 6.13 311(c) Inapplicable 312(a) 4.01 4.04 312(b) 4.04(c) 312(c) 4.04(c) 313(a) 4.03 313(b) 4.03 313(c) 4.03 313(d) 4.03 314(a) 4.02 314(b) Inapplica

November 22, 2019 EX-4.4

Form of Subordinated Note

EX-4.4 6 ex4-4.htm Exhibit 4.4 Form of Subordinated Note (FACE OF SECURITY) [Each Global Security shall bear substantially the following legend: UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN PART FOR SECURITIES IN DEFINITIVE REGISTERED FORM, THIS SECURITY MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY THE DEPOSITARY TO A NOMINEE OF THE DEPOSITARY OR BY A NOMINEE OF THE DEPOSITARY TO THE DEPOSITARY

November 22, 2019 EX-4.2

Form of Subordinated Indenture

Exhibit 4.2 AQUA METALS, INC. and Trustee INDENTURE Dated as of SUBORDINATED DEBT SECURITIES CROSS-REFERENCE TABLE(1) Section of Trust Indenture Act of 1939, as amended Section of Indenture 310(a) 6.09 310(b) 6.08 6.10 310(c) Inapplicable 311(a) 6.13 311(b) 6.13 311(c) Inapplicable 312(a) 4.01 4.04 312(b) 4.04(c) 312(c) 4.04(c) 313(a) 4.03 313(b) 4.03 313(c) 4.03 313(d) 4.03 314(a) 4.02 314(b) Ina

November 22, 2019 S-3

AQMS / Aqua Metals, Inc. S-3 - -

S-3 1 forms-3.htm As filed with the Securities and Exchange Commission on November 22, 2019 Registration No. 333- . UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-3 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 Aqua Metals, Inc. (Exact name of registrant as specified in its charter) Delaware 47-1169572 (State of incorporation) (I.R.S. Employer Identificati

November 12, 2019 10-Q

Quarterly Report - 10-Q

10-Q 1 aqms0930201910q.htm 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q [X] QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended September 30, 2019 OR [ ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission f

November 12, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 12, 2019 AQUA METALS, INC.

November 12, 2019 EX-99.1

Aqua Metals Announces Third Quarter 2019 Results Remain on schedule to commission and commence running all 16 AquaRefining modules by year end

EX-99.1 2 aqms8kq32019ex991.htm EXHIBIT 99.1 NEWS RELEASE For Immediate Release Contact: Glen Akselrod, Bristol Capital (905) 326-1888, Ext. 1 [email protected] Aqua Metals Announces Third Quarter 2019 Results Remain on schedule to commission and commence running all 16 AquaRefining modules by year end Recent Highlights: • Demonstrated four AquaRefining modules running 24x7 • Demonstrated capacit

September 25, 2019 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): September 24, 2019 AQUA METALS, INC.

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