SCHEDULE 13G/A 0002042926-25-000010 0002042926 XXXXXXXX LIVE 4 Ordinary Shares, without par value 09/30/2025 0001964630 Vast Renewables Ltd Q9379E105 SUITE 7.02, 124 WALKER STREET SUITE 7.02, 124 WALKER STREET NORTH SYDNEY NSW C3 2060 Rule 13d-1(c) Corley Thomas John PA 4697012.00 0.00 4697012.00 0.00 4697012.00 15.7 IN Beneficial ownership consists of 3,564,557 Ordinary Shares as well as 1,132,455 Ordinary Shares underlying warrants. Percentage of class is based on 29,973,504 Ordinary Shares outstanding as of December 31, 2024, as reported in Exhibit 99.3 to the Current Report on Form 6-K (File No. 001-41891) filed with the SEC on February 28, 2025. Vast Renewables Ltd SUITE 7.02, 124 WALKER STREET, SUITE 7.02, 124 WALKER STREET, NORTH SYDNEY NSW, AUSTRALIA, 2060. Thomas Corley 132 Washington Place State College, PA 16801 United States Y 4697012 15.7 4697012 0 4697012 0 Y N N N N N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11. Corley Thomas John Thomas Corley 10/01/2025