Indonesia rolls out mandatory B50 biodiesel

Indonesia has formally implemented a nationwide B50 biodiesel mandate, requiring that all diesel fuel sold domestically contain a 50% palm-oil-based biodiesel blend. President Prabowo Subianto officiated the launch on July 9, 2026, at the KM 57 rest area in Karawang, West Java. The program is anchored in decrees from the Ministry of Energy and Mineral Resources issued in July 2026, including Decree No. 257.K/EK.01/MEM.E/2026. The measure positions biodiesel as a central component of the country’s energy mix.

Under the new rules, the B50 content requirement applies across diesel distribution nationally. Authorities describe the policy as a structural shift away from conventional fossil diesel toward greater use of palm-oil-based fuel. The mandate covers both the fuel blending process and downstream sales at petrol stations. Implementation is designed to be uniform across regions once the transition period ends.

Energy and Mineral Resources Minister Bahlil Lahadalia stated that the B50 rollout has eliminated Indonesia’s diesel imports. The country’s diesel consumption stands at about 38–40 million kilolitres per year, and prior to B50 it imported roughly 3–4 million kilolitres annually. By replacing this imported volume with domestically produced biodiesel, authorities expect to strengthen energy security. The shift also reduces exposure to volatility in international diesel markets.

The government links the mandate directly to foreign-exchange savings. Projections indicate that savings could rise from Rp133.3 trillion under the earlier B40 blend to about Rp170 trillion by the end of 2026. These savings reflect reduced spending on imported fuel and increased reliance on domestic palm-based feedstock. Policymakers also highlight the potential for more stable energy planning as local biodiesel supply scales up.

Officials project that the B50 mandate will increase the added value generated from crude palm oil. Estimates suggest an increase from Rp20.92 trillion to around Rp23.49 trillion by 2026. Higher biodiesel blending is expected to channel more CPO into downstream processing, supporting palm-based industries. This value addition is presented as a key benefit for the broader agricultural and processing sector.

The program is also associated with significant employment effects. Government projections point to the absorption of roughly 2.1 million workers linked to the expanded biodiesel value chain. This includes activities in palm cultivation, processing, logistics, and fuel distribution. The employment impact is framed as part of the wider economic contribution of the B50 policy.

Beyond energy and economic considerations, B50 is tied to environmental goals. Authorities project a reduction of about 44.46 million tonnes of CO2 equivalent by 2026 as a result of the higher biodiesel blend. This anticipated reduction stems from substituting part of fossil diesel use with palm-oil-based fuel. The emissions benefit is integrated into broader climate and sustainability targets.

While the projections focus on 2026, the B50 policy is presented as a step in a longer-term transition in the transport and industrial fuel sectors. By mandating a 50% blend, Indonesia seeks to embed lower-carbon fuel use into everyday diesel consumption. The initiative therefore serves both as an energy-security measure and as a climate-related policy instrument.

To manage the shift from B40 to B50, the government has set a transition window for fuel companies. They are allowed to exhaust existing B40 biodiesel stocks until September 30, 2026. Full B50 rollout at all petrol stations is expected after this date, with October 1, 2026 targeted for completed implementation at the retail level. Authorities plan to evaluate the B50 mandate every three months to monitor performance and address any issues.

Before nationwide adoption, B50 underwent pre-implementation testing across six diesel-intensive sectors: automotive, agricultural machinery, heavy mining equipment, maritime transport, power generation and railways. Preliminary results were reported to meet safety, performance and compatibility requirements. Some testing continues, but feedback so far has supported the broader rollout. These trials are intended to ensure that the higher biodiesel blend integrates smoothly into existing equipment and operations.