Thailand to ban feed corn produced from agricultural burning

THAILAND – The government of Thailand will ban imports of animal-feed corn produced through agricultural burning starting January 1, 2026, in a bid to tackle worsening air pollution and reshape its grain trade, officials announced earlier this week.

Duangarthit Nidhi-u-tai, deputy director-general of the Department of Foreign Trade, said feed mills will be required to present proof that imported corn comes from burn-free sources. 

“This is the first time Thailand is implementing an environmental measure on agricultural imports,” Duangarthit said, adding that the measure still needs final cabinet approval in the coming weeks.

Bangkok and other parts of Thailand regularly experience hazardous smog, with poor air quality at times forcing schools to close. Much of the pollution is tied to slash-and-burn farming practices in neighbouring countries, where corn is grown for export to Thailand. 

Myanmar, Laos, and Cambodia currently supply about 90% of Thailand’s corn imports, which totalled 2 million tons in 2024 to help meet the domestic feed demand of roughly 9 million tons.

Authorities say the new rule is designed as a sustainable measure to fight pollution. But it is also viewed as a step toward opening the market to the United States, the world’s largest corn producer, which has been seeking broader access under ongoing trade negotiations. 

The U.S. currently cannot ship corn to Thailand without a separate agreement, though tariff concessions and market access pledges have been under discussion.

Transition and enforcement

During a transitional period beginning in 2026, imports may be certified by importers themselves, state agencies from exporting countries, or international organisations. 

Once Thailand’s long-anticipated Clean Air Act comes into force, stricter requirements will apply, including detailed proof of origin. Importers who fail to comply could face a one-year ban.

Thailand produces around 20.55 million metric tons of animal feed annually, or about 4% of global output, with a compound feed market valued at USD 6.7 billion in 2025. 

Domestic corn production typically covers 4–5 million tons, leaving imports critical for the industry.

By shifting its sourcing rules, Thailand aims to curb cross-border pollution while rebalancing trade flows.

The policy, once enacted, is expected to create opportunities not only for U.S. suppliers but also for other World Trade Organization members such as Mexico, Argentina, India, and Pakistan, which hold trade agreements with Thailand.

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