Exhibit 32.1


Certification of Chief Executive Officer and Chief Financial Officer Pursuant to 18 U.S.C. Section 1350,

as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002


In connection with the annual report of Highpower International, Inc. (the “Company”) on Form 10-K for the year ending December 31, 2018, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), each of the undersigned, in the capacities and on the date indicated below, hereby certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to his 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.


/s/ Dang Yu Pan  
Dang Yu Pan  
Chairman of the Board and Chief Executive Officer  
(Principal Executive Officer)  
March 28, 2019  
/s/ Shengbin (Sunny) Pan  
Shengbin (Sunny) Pan  
Chief Financial Officer  
(Principal Financial and Accounting Officer)  
March 28, 2019