# Malaysia-Brunei bilateral relations and haze cooperation

> Live situation record from CLSTR: https://clstr.news/situations/malaysia-brunei-bilateral-relations-and-haze-cooperation
> Updated: 2026-08-22T06:08:00.000Z. Sources: 16. Developments: 2.

During the 27th Annual Leaders’ Consultation in Bandar Seri Begawan, Malaysian Prime Minister Anwar Ibrahim and Brunei Sultan Hassanal Bolkiah committed to resolving long-standing land border disputes. The leaders aim to complete surveys and demarcations by 2034, utilizing existing agreements and the watershed principle, particularly in Sarawak. It was noted that approximately 50 percent of land border issues between the two nations have already been resolved.

In addition to border negotiations, the two nations agreed to use ASEAN mechanisms to address transboundary haze, which has impacted air quality in Sarawak. Following these discussions, Malaysia has urged ASEAN member states to strengthen preparedness and monitoring under the ASEAN Agreement on Transboundary Haze Pollution. This call for increased collective action comes amid rising hotspot activity driven by prolonged dry conditions and the El Niño phenomenon.

## Timeline

### 2026-08-22: Malaysia urges ASEAN to strengthen transboundary haze preparedness

Malaysia is urging ASEAN members to strengthen preparedness against transboundary haze amid El Niño risks, while Malaysia and Brunei agree to use regional mechanisms to tackle the issue.

7 sources. https://clstr.news/cluster/malaysia-urges-asean-to-strengthen-transboundary-haze-preparedness

### 2026-08-20: Malaysia and Brunei advance border dispute resolution and haze cooperation

During the 27th Annual Leaders’ Consultation, Malaysia and Brunei agreed to resolve long-standing border disputes and use ASEAN mechanisms to tackle transboundary haze.

11 sources. https://clstr.news/cluster/malaysia-and-brunei-leaders-to-hold-27th-annual-consultation

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Cite as: Malaysia-Brunei bilateral relations and haze cooperation. CLSTR, https://clstr.news/situations/malaysia-brunei-bilateral-relations-and-haze-cooperation
