Wildfire in Thailand — Green alert

Summary

Wildfires erupted in Thailand on April 10, 2026, and continued burning through April 17, affecting approximately 6,400 rai (1,024 hectares) primarily in the northern region around Chiang Mai and Mae Taeng district. The fires have generated severe air pollution, with Chiang Mai topping global air quality rankings, creating hazardous conditions that are disrupting tourism and agricultural activities across Thailand's northern provinces.

Supply-chain impact

• Palm oil production in northern Thailand faces potential disruption as wildfires threaten agricultural areas, with smoke and air quality concerns potentially affecting plantation operations and worker safety protocols.
• Tourism supply chains in northern Thailand are experiencing significant stress as Chiang Mai, a major tourist destination, suffers from toxic haze and deserted attractions, impacting hotel occupancy, restaurant operations, and related service industries.
• Agricultural supply chains beyond palm oil may face contamination risks from ash and smoke particulates, potentially affecting crop quality and harvest schedules in affected regions.
• Transportation networks in northern Thailand could experience delays or restrictions due to reduced visibility from heavy smoke, affecting the movement of goods and commodities through the region.
• Air freight operations at Chiang Mai International Airport may face operational constraints due to poor air quality and visibility conditions, disrupting time-sensitive cargo movements.

Watch points

• Monitor air quality index readings and visibility conditions in Chiang Mai and surrounding areas, as sustained poor conditions could force broader transportation and industrial shutdowns.
• Track the spread of fires beyond the currently controlled Sakaerat area and Mae Taeng district, particularly toward major agricultural zones and industrial facilities in northern Thailand.
• Watch for government declarations of emergency measures or evacuation orders that could further disrupt supply chains and logistics operations in the region.