JAKARTA, July 24 (Reuters) - Indonesia, the world's biggest palm oil manufacturer, is evaluating fuel with a view to increasing to 40% from 35% the share of palm-oil blended into biodiesel next year, the energy ministry said.

If carried out, the B40 mandate might increase biodiesel intake to up to 16 million kilolitres (KL) next year, the ministry stated, from 13 million KL approximated to be consumed in 2024.

"We hope the trials could be finished in December, so that full implementation of B40 could be brought out in 2025," energy ministry senior official Eniya Listiani Dewi stated in a statement on Tuesday.

The Indonesian Biofuel Producers Association (APROBI) stated the market had the to meet B40 demand, with set up capacity expected to rise to 20 million KL yearly next year from 18 million KL now.

"However we will need more basic materials to fulfill B40 need," Ernest Gunawan, the secretary general of APROBI informed Reuters on Wednesday.

The biodiesel market would require 13.9 million metric lots of unrefined palm oil to produce 16 million KL biodiesel next year, from the estimated 11 million lots required this year, he added.

Indonesia's most significant palm oil association GAPKI stated a decrease in exports suggested there would suffice basic materials to provide the B40 mandate in the meantime.

But the industry would need to assess "which one would be more important", GAPKI chairman Eddy Martono stated, describing the possibility an increase in exports would make providing the domestic market less feasible.

Indonesia's palm oil output is estimated to reach 54.4 million loads in 2024, a 2.26% boost from in 2015, while exports are anticipated to decline by 2.47% to 29.5 million heaps as domestic usage increased, driven by biodiesel mandate.

The ministry had checked the biodiesel, blended with 40% of palm oil, on a train for the very first time previously today, while preparing to evaluate the B40 mix on agriculture machinery, power plants and in the shipping industry, it said. (Reporting by Bernadette Christina and Dewi Kurniawati