Pyrophyte Acquisition extends Sio Silica deal outside date to April 29, 2027

On March 13, 2026, Pyrophyte Acquisition Corp., a Cayman Islands exempted company (“ Pyrophyte ”), entered into an amendment “ Amendment No. 5 ”) to the previously announced business combination agreement, dated November 13, 2023, by and among Pyrophyte, Sio Silica Corporation, an Alberta corporation (“ Sio ”), Snowbank NewCo Alberta ULC, an Alberta unlimited liability corporation and a wholly-owned subsidiary of Pyrophyte (“ Pyrophyte Newco ”), and Sio Silica Incorporated, an Alberta corporation (“ Sio Newco ”) (the “ Sio Business Combination Agreement ”), with Sio, Pyrophyte Newco and Sio Newco, pursuant to which the parties agreed to extend the outside date from April 29, 2026 to April 29, 2027.