EXHIBIT 32.1
 
CERTIFICATION PURSUANT TO
18 U.S.C. ss.1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002
 
In connection with the Annual Report of Aqua Metals, Inc. (the “Company”) on Form 10-K for the period ended December 31, 2018 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Stephen Cotton, the Chief Executive Officer, and Judd Merrill, the Chief Financial Officer, of the Company, respectively, certify, pursuant to 18 U.S.C. §1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to my knowledge:
 
1.The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and
 
2.The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.
 
By:
/s/ Stephen Cotton
 Dated: March 11, 2020
 Stephen Cotton  
Title:Chief Executive Officer  
 (Principal Executive Officer)  
    
By:/s/ Judd Merrill Dated: March 11, 2020
 Judd Merrill  
Title:Chief Financial Officer  
 (Principal Financial and Accounting Officer)  
 
This certification is made solely for the purposes of 18 U.S.C. Section 1350, subject to the knowledge standard contained therein, and not for any other purpose.