Thailand: 2026 ethanol subsidy expiry to spark market surplus, cut farm demand

Impending Policy Shift and Market Implications

Thailand's ethanol sector is approaching a significant policy alteration with the planned discontinuation of biofuel price subsidies on 24 September 2026. This measure, currently supporting the pricing of gasohol blends such as E20, is expected to narrow the price differential between E20 and conventional petrol.

Industry bodies, including the Thai Tapioca Planter Association and the Northeastern Sugarcane Farmers Institute, have voiced concerns that this change could lead to an oversupply of ethanol in the domestic market.

The removal of these subsidies might diminish the incentive for consumers to choose biofuel options, subsequently affecting demand for ethanol and, by extension, the agricultural sectors that supply its primary raw materials: tapioca and sugarcane. This situation presents a challenge for both energy and agricultural policy frameworks in the country.

Agricultural Sector Exposure to Ethanol Demand

The production of ethanol forms a critical link between Thailand's energy and agricultural sectors, providing an important market for the country's two major cash crops: tapioca and sugarcane. Rangsee Ad-adisai, president of the Thai Tapioca Planter Association, noted that if E20 becomes less attractive to consumers, ethanol demand may decline.

This reduction would directly affect cassava sales, prices, and the incomes of farmers. Without the existing subsidies, the price difference between E20 and petrol could become less pronounced, leading consumers to opt for the cheaper alternative.

This dynamic places continued pressure on the industry from both demand and production cost factors, particularly impacting the livelihoods of agricultural producers reliant on ethanol manufacturing.

Production Capacity Exceeds Current Consumption

Thailand's ethanol production infrastructure currently maintains a substantial capacity that exceeds domestic consumption levels. The country operates 28 ethanol plants, collectively capable of producing more than 7 million litres of ethanol daily. In contrast, current daily consumption stands at approximately 3.5 million litres, according to industry associations.

This existing excess production capacity suggests that any reduction in demand, particularly following the subsidy expiry, could exacerbate the market's oversupply condition. While oil price volatility earlier this year provided some support for E20 consumption, overall ethanol demand has either stabilised or decreased in line with broader economic conditions. Without new policy measures, ethanol consumption could decline further, intensifying the challenge for producers.

Industry Calls for a Coherent Energy Transition Plan

In response to the impending subsidy expiry, industry groups are urging the government to implement a comprehensive energy transition plan. Sitti Boonratchatachai, president of the Northeastern Sugarcane Farmers Institute, has advocated for urgent and consistent ethanol policies to support E20 consumption.

He stated that clear policies would assist both farmers and the industry in effectively managing raw materials and planning investments and production over the long term.

Mr Ad-adisai of the Thai Tapioca Planter Association further suggested that the government, industry, and farmers must collaborate to design new markets and shift from price subsidies towards value-added systems that maintain the competitiveness of Thai tapioca.

The proposed 2026–2030 energy transition plan should establish clear targets for E20 and ethanol, maximise domestic raw material utilisation, and foster a stable bio-energy market.

Consequence for Agricultural Markets and Policy Outlook

For decision-makers in Thailand's agricultural and energy sectors, the critical date to observe is 24 September 2026. The cessation of biofuel subsidies on this date will directly influence the price competitiveness of E20 gasohol, potentially reducing ethanol demand from its current 3.5 million litres per day.

This shift is expected to exert downward pressure on tapioca and sugarcane prices, affecting the incomes of farmers who supply these key inputs. The government's response to industry calls for a 2026–2030 energy transition plan will be crucial.

Investors and policymakers should monitor the specific measures implemented to create new markets and value-added systems for agricultural produce, alongside any policies designed to stabilise the bio-energy market. The effectiveness of these interventions will determine the extent of market rebalancing and the financial impact on agricultural producers in the coming quarters.