Siri Jelajah KESEF Program (KESEF - Kelab Setem dan Filateli) for 2025 was held three times at three locations (zon selatan, zon timur and zon utara). KESEF 2025 stamp (an overprint) was released for this KESEF program. One of the stamp (cat; denomination 50s) from the Pet stamps released in 2023 was overprinted for use in this KESEF 2025 Program. Pos Malaysia did not announce the actual date of the stamp release. So, we may assume that the earliest date of Siri Jelajah KESEF 2025 Program should the the date of release of this overprint stamp. The earliest Siri Jelajah KESEF 2025 program was on 21 May 2025 in Melaka.
