Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the use in this Registration Statement on Form S-4 of our report dated March 24, 2020, which includes an explanatory paragraph as to the Company’s ability to continue as a going concern, with respect to our audits of the financial statements of Tottenham Acquisition I Limited for the years ended December 31, 2019 and 2018 included in the Registration Statement. We also consent to the reference to our firm under the heading “Experts” in the Prospectus.

/s/ Friedman LLP

New York, New York

September 10, 2020