Corporate Presentation

September, 2021

Leading a Revolution

In the Lead and Lithium Battery Industries

Safe Harbor

This document contains forward-looking statements concerning Aqua Metals, Inc.

This presentation contains forward-looking statements concerning Aqua Metals, Inc. Forward-looking statements include, but are not limited to, our plans, objectives,

expectations and intentions and other statements that contain words such as "expects," "contemplates," "anticipates," "plans," "intends," "believes", "estimates", "potential"

and variations of such words or similar expressions that convey uncertainty of future events or outcomes, or that do not relate to historical matters. The forward-looking statements in this presentation include our expectations for the outcome of our agreement with ACME and the expected benefits of our agreement with ACME. Those forward-looking statements involve known and unknown risks, uncertainties and other factors that could cause actual results to differ materially. Among those factors are: (1) the risk that the initial deployment of our AquaRefining technology at ACME's facilities may not produce satisfactory results; (2) even if the initial deployment of our

AquaRefining technology at ACME's facilities are successful, the risk we may not be able to conclude a long-term commercial license agreement with ACME or, if we do,

derive the expected benefits from such agreement; (3) the risk that we may not be able to satisfactorily demonstrate to potential licensees the technical and commercial viability of our V1.25 electrolyzer and AquaRefining process; (4) the risk that licensees may refuse or be slow to adopt our AquaRefining process as an alternative to smelting in spite of the perceived benefits of AquaRefining; (5) the risk that we may not realize the expected economic benefits from any licenses we may enter into; (6) the risk that we may not be able to access additional capital as and when needed and (7) those other risks disclosed in the section "Risk Factors" included in our Annual Report on Form 10-K filed on February 25, 2021 and subsequent SEC filings. Aqua Metals cautions readers not to place undue reliance on any forward-looking statements. The Company does not undertake, and specifically disclaims any obligation, to update or revise such statements to reflect new circumstances or unanticipated events as they occur, except as required by law.

Copyright © 2021 Aqua Metals, Inc. All Rights Reserved.

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Our Mission

To provide sustainable metal recycling for materials strategic to energy storage applications

Our proven breakthrough technology, AquaRefining, delivers raw materials back into the manufacturing supply chain in a

clean economical way that reduces overreliance on mining to meet demand

Copyright © 2021 Aqua Metals, Inc. All Rights Reserved.

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Aqua Metals at a Glance

Developed AquaRefining, a commercially-ready sustainable battery recycling technology

AquaRefining uses water and organic acids to create 99.996+% ultra pure lead, one atom at a time, for the ~$20B lead recycling industry

Seeking to extend AquaRefining to lithium-ion batteries through IP, strategic investment, and R&D

Transformative technology that benefits the industry and Earth

Environment - Worker Safety - Battery Performance - Economics

Ticker: AQMS (NASDAQ)

Incorporated: 2014

Cash on Hand: $10.7M as of 06.30.21 ($5.25M ins. rec'd July)

Corporate HQ: Tahoe-Reno,NV Shares Outstanding: 69.5M last 10-Q

Debt: Debt free and strong balance sheet

Copyright © 2021 Aqua Metals, Inc. All Rights Reserved.

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A Climate Friendly Methodology to Meet

Rapidly Growing Strategic Metals Demand

Horizon 1

Horizon 2

Recycled lead market is slated to surpass $19 billion by 2026

More than 6M tons of lead collected for reuse each year

Lead batteries power 1.4B automobiles worldwide

Over 80% of lead in every new lead acid battery is secondary or recycled lead

Last year, lithium-ion batteries containing nearly $1 billion in strategic metals are landfilled

This is expected to grow to $12 billion by 2025 if not recycled

30M EVs to be produced annually by 2027, requiring 1.8M MT of lithium, 5X what is mined today

Copyright © 2021 Aqua Metals, Inc. All Rights Reserved.

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Aqua Metals Inc. published this content on 20 September 2021 and is solely responsible for the information contained therein. Distributed by Public, unedited and unaltered, on 20 September 2021 18:51:00 UTC.