X0206 3 2021-01-26 0 0001822862 Fortistar Sustainable Solutions Corp. FSSI 0001826665 FSSC Sponsor LLC C/O FORTISTAR SUSTAINABLE SOLUTIONS CORP ONE NORTH LEXINGTON AVENUE WHITE PLAINS NY 10601 true true 0001827110 FSSC Holdings LLC C/O FORTISTAR SUSTAINABLE SOLUTIONS CORP ONE NORTH LEXINGTON AVENUE WHITE PLAINS NY 10601 true 0001841787 Fortistar Projects LLC C/O FORTISTAR SUSTAINABLE SOLUTIONS CORP ONE NORTH LEXINGTON AVENUE WHITE PLAINS NY 10601 true 0001841238 Fortistar LLC C/O FORTISTAR SUSTAINABLE SOLUTIONS CORP ONE NORTH LEXINGTON AVENUE WHITE PLAINS NY 10601 true 0001827111 Comora Mark S C/O FORTISTAR SUSTAINABLE SOLUTIONS CORP ONE NORTH LEXINGTON AVENUE WHITE PLAINS NY 10601 true true Class B Common Stock, par value $0.0001 Class A Common Stock, par value $0.0001 6393750 D This form is being filed by the following Reporting Persons: FSSC Sponsor LLC (the "Sponsor"), FSSC Holdings LLC ("FSSC Holdings"), Fortistar Projects LLC ("Fortistar Projects"), Fortistar LLC ("Fortistar") and Mark Comora. The Sponsor owns 5,675,000 shares of Class B common stock, par value $0.0001 per share (the "Class B Common Stock"), of Fortistar Sustainable Solutions Corp. (the "Issuer"), including 750,000 shares of Class B Common Stock that are subject to forfeiture if the underwriters of the Issuer's initial public offering do not exercise in full an option granted to it to cover over-allotments. The shares of Class B Common Stock have no expiration date and are convertible into shares of Class A common stock, par value $0.0001 per share, of the Issuer, as described under the heading "Description of Securities-Founder Shares" in the Issuer's registration statement on Form S-1 (File No. 333-251922). FSSC Holdings is the Managing Member of the Sponsor. Fortistar Projects is the Managing Member of FSSC Holdings. Fortistar is the Managing Member of Fortistar Projects. Mark Comora is the Managing Member and President of Fortistar. Because of the relationships among the Reporting Persons, the Reporting Persons may be deemed to beneficially own the securities reported herein to the extent of their respective pecuniary interests. Each Reporting Person disclaims beneficial ownership of the securities reported herein, except to the extent of such Reporting Person's pecuniary interest therein, if any. Pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), this filing shall not be deemed an admission that the Reporting Persons are, for purposes of Section 16 of the Exchange Act or otherwise, the beneficial owners of any equity securities in excess of their respective pecuniary interests. See Exhibit 99.1 for Joint Filer Information and Signatures incorporated herein by reference. See Exhibit 99.1 2021-01-26