Brunei–Malaysia relations Brunei–Malaysia relations Brunei–Malaysia relations (; Jawi: هوبوڠن بروني–مليسيا) are foreign relations between Brunei and Malaysia. Brunei has a high commission in Kuala Lumpur, as well as consulate-generals in Kota Kinabalu and Kuching. Malaysia maintains a high commission in Bandar Seri Begawan. Both countries are full members of ASEAN and the Commonwealth of Nations. The two countries share a land border on the island of Borneo. Relations between the two countries has been established since January 1984. Brunei and Malaysia have many similarities in culture especially in the East Malaysian areas as they were once a part of the Bruneian Empire.
Brunei–Malaysia border portion of the South China Sea that is subject to multiple overlapping claims by China, Taiwan and Vietnam. Malaysia is also a claimant in the area but a bilateral agreement with Brunei has solved the overlapping claims over Brunei's territorial waters. From west to east, the Brunei–Malaysia border begins where the watershed of the Baram and Belait river basins meet the South China Sea at a point six nautical miles (11 km) east of Tanjung Baram with coordinates . It then travels along the watershed of the two river basins for about 30 km to the Pagalayan Canal. It then