Singapore Sues 10 Firms as Borneo Haze Chokes Region

Key points

• Singapore’s National Environment Agency ordered 10 specific firms to stop burning land in Indonesia and submit fire-suppression plans, with Prime Minister Lawrence Wong vowing to pursue all legal avenues.
• In Palangka Raya, Central Kalimantan, air quality is rated 'very unhealthy' by IQAir; residents are using volunteer-run 'clean air shelters' equipped with oxygen and nebulisers due to a 25% rise in respiratory cases.
• Malaysia’s Johor state extended school closures for a second week due to hazardous pollution, while Kuala Lumpur and other states reopened schools after a week of closures.
• Indonesia’s weather agency reports a delayed rainy season, starting in November rather than the forecasted October, prolonging the smog; scientists cite a 'super El Niño' as a key driver of the dry conditions.
• NTU professor Euston Quah estimates the 2026 economic impact will surpass the 2015 crisis, which cost the region approximately $20bn, due to larger population and economic growth since then.

Background

This crisis follows a period of escalating tensions since September 2026, when Malaysia declared an emergency in Sarawak and Indonesia reported 175,000 respiratory cases linked to fires burning 895,000 hectares. Earlier this month, Singapore’s F1 Grand Prix proceeded despite record haze levels. While Jakarta initially resisted external aid, it has since accepted assistance, though diplomatic friction remains high, particularly after Indonesian officials made comments about 'sending oxygen' to Singapore and Malaysia, which Singapore’s Senior Minister K Shanmugam called 'disappointing.'

How outlets are covering it

The BBC provides on-the-ground reporting from the epicenter in Central Kalimantan, highlighting the immediate human impact through resident testimonials and the operation of volunteer shelters. It also details Singapore’s aggressive legal stance against 10 named companies. In contrast, the secondary source from NASA Earthdata was inaccessible due to a 403 error, offering no additional data. The BBC notes that while Singapore pursues legal action, Malaysia has opted for diplomatic channels, and Indonesia has not yet accepted offers of help from its neighbors, highlighting a divergence in regional response strategies.

Why it matters

The transboundary haze crisis underscores the fragility of regional stability in Southeast Asia, where environmental disasters trigger diplomatic and economic fallout. The potential for economic losses exceeding $20bn and the strain on public health systems highlight the urgent need for coordinated cross-border environmental governance. Singapore’s legal actions set a precedent for holding corporations accountable for transboundary pollution, potentially influencing future international environmental law.

What to watch

Singapore will monitor compliance from the 10 firms and may escalate legal proceedings if burning continues. Indonesia faces pressure to implement stricter fire controls as the delayed rainy season approaches in November. Malaysia will continue to assess air quality to determine if school closures in Johor should be extended. Regional leaders will likely engage in further diplomatic talks to manage tensions and coordinate fire-fighting efforts.