X0306 4 2017-12-15 0 0001621832 Aqua Metals, Inc. AQMS 0001649347 Clarke Stephen R. 1010 ATLANTIC AVE ALAMEDA CA 94501 1 1 0 0 President & CEO Common Stock 2017-12-15 4 A 0 251 1.99 A 1029603 D Common Stock 732559 I By Corporation Shares were purchased under the Company's Officer and Director Share Purchase Plan in a transaction exempt from Section 16b pursuance to Rule 16b-3(d). Represents shares held by AIC of Nevada, Inc. of which the reporting person is an officer, director and 19% shareholder. The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these shares in this report shall not be deemed an admission of beneficial owner of all of the reported shares for purposes of Section 16 or for any other purpose. /s/ Mark Weinswig, by power of attorney 2017-12-18