On a hazy day in Palangka Raya, the capital of Central Kalimantan, smoke can make ordinary errands feel like an endurance test. In late October 2026, rain restored some visibility after months of forest and land fires, while officials continued firefighting and public-health responses. Peat fires can keep burning below the surface long after the sky looks clearer. The response has also gained a cross-border policy dimension: Indonesia and Singapore agreed to establish a joint task force to share information and gather evidence about companies linked to fires, although its detailed operating arrangements remain to be settled. Separately, Singapore says five companies have agreed to engage specialist assessors, a sixth has expressed willingness and a seventh has publicly said it is prepared to cooperate. The central question is whether temporary relief becomes lasting prevention.

What has changed in the latest reports?

Channel News Asia reported on October 28 that rain on October 25–26 eased smoke in parts of Indonesia, including Palangka Raya, after an extended period of poor air quality and flight disruptions. An airport spokesperson described visibility improving from exceptionally low levels earlier in the crisis, although normal operations had not fully resumed. Reuters independently reported that local medical teams were using an oxygen-equipped bus to provide short-term relief to people affected by smoke exposure.

The ASEAN Specialised Meteorological Centre, or ASMC, lowered the Southern ASEAN regional smoke-haze alert to Level 2 on October 29 as showers reduced hotspot numbers and improved some conditions. That is a real improvement and should be reported. Its bulletin still warned that elevated hotspot activity and transboundary haze remained possible in drier locations.

Sources: Indonesia sends oxygen bus during forest-fire haze · Rain eases Indonesian haze as peat fire risk remains · Southern ASEAN haze alert reduced to level two

Indonesia and Singapore add a cross-border enforcement track

On 27 October, the foreign ministers of Indonesia and Singapore announced an agreement to establish a joint task force focused on companies linked to forest and land fires. The stated work includes information sharing, financial intelligence and cross-border evidence gathering; Indonesia's foreign minister also raised the possibility of asset recovery where possible. This is a policy step, not a finding that any named company has been found responsible.

In a 28 October interview, Singapore's foreign minister said the task force's composition and staffing had not yet been settled. He described its immediate purpose as facilitating information exchange and each country's work within its own jurisdiction. The arrangement should therefore be treated as an agreed framework still being set up, not an operational enforcement body with completed investigations.

The move follows Singapore's use of the Transboundary Haze Pollution Act. Its National Environment Agency said it had served notices on 10 Singapore-based companies seeking information about their possible contribution to haze and their fire-prevention measures in Indonesian plantations. Those notices are information-gathering steps, not proof of liability.

On 30 October, ANTARA reported that the environment minister was verifying 356 companies whose land or forest areas had burned. On 2 November, the ministry published a statement saying it was investigating fires affecting concession areas belonging to 335 companies and that each burned area needed to be checked. The two dated statements do not explain whether the figures reflect a revised count, a different scope or a different unit of reporting. They should therefore remain separate figures rather than be silently reconciled. Neither number is a count of proven offenders; the ministry said responsibility must be established through field verification and evidence.

Separately, the Indonesian National Police's Criminal Investigation Agency said on 29 October that 20 corporations had been named as suspects in 104 police reports involving 29,168.78 hectares of burned land; four were foreign-invested firms and 16 were domestic. Police also recommended revoking the business permits of 23 corporations. This is a distinct criminal-investigation track from the environment ministry's 335-company and earlier 356-company verification figures; the sources do not establish that the groups are identical. Suspect status is not a conviction, and a permit-revocation recommendation is not a completed revocation.

On 31 October, CNA reported that the minister said field checks would be carried out to gather information for the joint task force. This marks movement from the 27 October diplomatic agreement toward evidence collection, but the reported checks do not establish liability for any company.

Sources: Singapore, Indonesia setting up joint task force to probe firms linked to forest fires; hotlines to manage differences · Transcript of Wrap-Up Interview with Singapore Media by Minister for Foreign Affairs Dr Vivian Balakrishnan in Jakarta, Indonesia, on 28 October 2026 · NEA serves notices to 10 Singapore-based companies · Indonesia probes 356 companies over forest, land fires: Minister · Transboundary haze: Indonesia's environment minister conducts field checks for joint task force · Menteri LH Tegas: Usut Tuntas Kebakaran Lahan di 335 Konsesi Perusahaan dan Dugaan Pembakaran · 245 Individuals and 20 Corporations Named as Suspects in the Wildfire Handling · Indonesian police name 245 people, 20 firms as wildfire suspects

October 31 update: Singapore moves from notices to specialist assessments

On 30 October, Singapore's Ministry of Law and National Environment Agency announced seven members for a Panel on Transboundary Haze: three investigation firms and four law firms or legal advisers. Companies identified by the government have been asked to appoint a team from the panel at their own expense. The assessors will examine company operations, corporate relationships and supply chains, then submit reports to NEA.

On 31 October, NEA said five companies — Wilmar International, Golden Agri-Resources, APP Company, APP Company (China) and Indofood Agri Resources — had agreed to engage assessors. Kencana Agri had expressed willingness to participate voluntarily, while First Resources said publicly that it was prepared to engage an investigation firm and a law firm; NEA said it was awaiting written confirmation.

The process is a fact-finding exercise. Voluntary participation does not establish that any company caused or contributed to the fires. The bilateral Indonesia–Singapore joint task force announced on 27 October is a separate track from Singapore's domestic panel under the Transboundary Haze Pollution Act.

The government said it intends to table amendments at the next parliamentary sitting to give legal force to the assessment framework. As of 1 November, those amendments had not yet been passed. The next meaningful milestones are the assessments, NEA's review and any enforcement decisions based on evidence.

On 2 November, The Straits Times reported that three more Singapore-listed firms — TSH Resources, Bumitama Agri and Kencana Agri — had agreed to engage assessors. TSH said it would participate voluntarily at its own cost; two of its subsidiaries were among the ten entities that had received NEA notices. Bumitama also confirmed its commitment, while Kencana said it had written to NEA on 30 October to confirm voluntary participation. This expands the number of firms publicly reported as cooperating, but does not establish that any company caused the fires or resolve the status of every notice recipient.

Sources: Seven Singapore-Registered Companies Have Expressed Agreement To Appoint Assessors · Panel on Transboundary Haze: Seven Members Selected to Conduct Assessments · Haze probe: Five Singapore-registered companies agree to engage assessors · Media Doorstop post-meeting with companies – Ms Grace Fu · Haze probe: Three more Singapore-registered companies agree to engage assessors

Why peat fires are harder than ordinary surface fires

Peat is partially decomposed organic material that stores large amounts of carbon. When peatlands are drained and dry, fire can spread through the underlying material and smoulder out of sight. Short rainfall may cool the surface without wetting the deeper layers sufficiently to stop combustion.

Indonesia's disaster-management agency told CNA that firefighters must saturate peatland thoroughly to prevent embers from reigniting. That explains why a visible change in smoke or rainfall does not by itself establish that a site is extinguished. Verification depends on water levels, remaining hotspots, ground checks and whether burned areas continue to produce smoke.

Sources: Rain eases Indonesian haze as peat fire risk remains · Indonesia links fires to degraded peatlands

What do official health numbers tell us?

Indonesia's Ministry of Health policy research agency published an analysis of media and public-health issues for October 19–23, citing 333,470 acute respiratory infection cases and 75,172 affected children under five in the fire-and-haze context. The figures also appear in reporting of ministry officials; they describe a cumulative case count, not new infections recorded during that single five-day analysis window. The agency's document is a public-issue analysis rather than a full clinical surveillance dataset, so the numbers should not be used to calculate individual exposure or a national incidence rate.

Medical pressure can also be uneven by location and age. Children, older people and people with existing respiratory problems may be especially vulnerable to poor air quality. Detailed medical outcomes require clinical and exposure evidence, not only a headline count. Community reporting from Central Kalimantan described school, work and family routines disrupted by thick haze.

Sources: Indonesia sends oxygen bus during forest-fire haze · Analysis of public health issues October 19 to 23

The science of a regional smoke problem

Indonesia's meteorological agency BMKG has documented persistent heat, dry conditions and high-confidence hotspots across parts of Sumatra and Kalimantan. It identified a strong El Niño phase and a positive Indian Ocean Dipole as contributing to dry weather and elevated wildfire susceptibility. Local land use, drainage and ignition sources affect whether that weather develops into a persistent fire.

Smoke does not respect national borders. The ASMC monitors regional haze because winds can carry pollution across Southeast Asia, affecting aviation, schools, health services and daily life in neighboring countries. But a regional warning is not a claim that every city or country had equally hazardous conditions on a particular date.

Sources: Southern ASEAN haze alert reduced to level two · Indonesia links fires to degraded peatlands · Dry hot October conditions increase fire risk

What are authorities doing, and what remains uncertain?

BMKG described a weather-modification effort in late October using dry ice to change atmospheric conditions trapping smoke over Sumatra and Kalimantan. The objective is to address severe haze under particular meteorological conditions, but the announcement should not be taken as proof that the technique has extinguished all peat fires. Authorities have also continued ground response and hotspot monitoring.

Environmental and public-health responses have several clocks. Emergency measures can improve visibility quickly, yet land restoration, water-table management and enforcement against repeat burning take much longer. A credible evaluation would compare burned area, persistent subsurface hotspots, air-quality measurements, respiratory effects and land-use changes—not count individual interventions as an achieved long-term solution.

Sources: Rain eases Indonesian haze as peat fire risk remains · BMKG uses dry ice in haze response

What to watch as the rainy period develops

ASMC expects further improvement if more rainfall arrives but continues to monitor remaining hotspots. Readers should follow subsequent regional bulletins and Indonesian health releases rather than assuming the Level 2 downgrade signals zero risk. People making local safety decisions should follow up-to-date official advice, which can differ significantly by district.

The story of Indonesia's fires is larger than a single orange sky. It concerns how peatlands are managed, who bears the health costs of smoke, and whether short-term firefighting becomes sustained prevention. Rain may help people breathe today; preventing another season like this requires evidence of a more durable change.

Sources: Rain eases Indonesian haze as peat fire risk remains · Southern ASEAN haze alert reduced to level two · Indonesia links fires to degraded peatlands · Dry hot October conditions increase fire risk