Indonesia, April 21 -- The mandatory B50 biodiesel, set to take effect on July 1, is projected to save Indonesia up to Rp157.28 trillion (US$9.18 billion) in foreign exchange by 2026.

"God willing, it can take effect on July 1," Eniya Listiani Dewi, Energy and Mineral Resources Ministry (ESDM) director general of new, renewable energy and energy conservative, said in Bandung on Tuesday.

She explained that the B50 blend, consisting of 50 percent crude palm oil (CPO) and 50 percent fossil diesel, is still in the road testing phase, which has been underway since December 9, 2025.

The road testing on nine types of vehicles is targeted for completion in May. Following the road testing, ESDM Ministry will inspect the condition of the engines...