Olathe Deployment Advances as 374Water Accelerates Its Mission to Eliminate PFAS and Organic Wastes MORRISVILLE, NC / ACCESS Newswire / March 12, 2026 / 374Water Inc. (NASDAQ:SCWO) ("374Water" or the "Company"), a global leader in organic waste destruction technology for industrial, municipal, and federal markets, today announced that it has received the Purchase Order ("PO") from Garney Construction ("Garney"), a national leader in water and wastewater treatment plants and infrastructure projects, which was selected by the City to lead construction and integration activities. The Purchase Order is a critical commercial milestone, triggering the issuance of a $2.3M invoice and payment to 374Water, and activating the next phase of a project that positions Garney, the City of Olathe, and 374Water to advance the Company's proven and scalable solution for the safe and permanent destruction of PFAS-contaminated biosolids.