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 (Definition of Boundaries) Order in Council, 1958. It asserts that its eastern boundary extends from the 100 fathom isobath at to while the western boundary extends from the 100 fathom isobath at to . The EEZ outer limit runs between the two distant points parallel to the coast. Brunei's EEZ claim would include waters surrounding the Spratly Islands in the South China Sea. The area claimed by Brunei however does not include any islands but includes Louisa Reef, which is currently occupied by Malaysia. Until 2009, Malaysia did not recognise Brunei's EEZ claim and stated that Brunei's maritime territories ended