374Water Inc.

On October 15, 2024, the Company executed an operating lease for 3,317 square feet of laboratory space located in North Carolina. The lease began September 1, 2024 and ends October 1, 2029 with one five-year extension period. Monthly rental payments required under the lease are subject to annual increases and range from $14,235 to $16,503 over the initial term of the lease.

On January 26, 2026, the Company executed a license agreement with the City of Orlando for use of their space at Iron Bridge Water Reclamation (the “License Agreement”). The License Agreement grants the Company a temporary, revocable, nonexclusive license to use approximately 15,000 square feet of the facility for the following (i) installation and operation of AirSCWO units to process city wastewater sludge, (ii), processing of certain approved third-party materials under a waste destruction services program, subject to approval by the City of Orlando, and maintenance of equipment , manufacturing of AirSCWO units and inventory storage. The initial term of the License Agreement commences February 1, 2026 for five years with two optional five-year renewal terms. The initial monthly licensee fee is $8,000 for the first two years, with annual increases of 2.5% thereafter. The License Agreement includes provisions for the termination for convenience with 180 days’ written notice by either party.