Exhibit 16.1


December 14, 2020


Securities and Exchange Commission

100 F Street, N.E.

Washington, DC 20549




We have read the statements made by Desktop Metal, Inc. (formerly known as Trine Acquisition Corp.) under Item 4.01 of its Form 8-K filed December 14, 2020. We agree with the statements concerning our Firm in such Form 8-K; we are not in a position to agree or disagree with other statements of Desktop Metal, Inc. contained therein.


Very truly yours,


/s/ Marcum llp


Marcum llp