Exhibit 32.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350 AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

The undersigned officer of Soltrest Inc. (the "Company"), hereby certifies, to such officer's knowledge, that the Company's Quarterly Report on Form 10-Q for the quarter ended March 31, 2019 (the "Report") fully complies with the requirements of Section 13(a) of the Securities Exchange Act of 1934 and that the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Li Weiwei

Li Weiwei

Chief Executive Officer

Chief Financial Officer

May 13, 2019