Exhibit 99.1 IMMUTEP LIMITED ABN 90 009 237 889 Appendix 4D Half-Year Financial Report For the Half-Year Ended 31 December 2023 (previous corresponding period: half-year ended 31 December 2022) To be read in conjunction with the 30 June 2023 Annual Report. In compliance with Listing Rule 4.2A. ABN 90 009 237 889 ASX/Media Release (ASX: IMM) 28 February 2024 Appendix 4D Half-Year Financial Report Results for Announcement to the Market Current Reporting Period – Half-year Ended 31 December 2023 Previous Repor ...