JAKARTA, July 24 (Reuters) - Indonesia, the world's most significant palm oil producer, is evaluating fuel with a view to 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 as much as 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 ended up in December, so that full execution of B40 could be performed in 2025," energy ministry senior official Eniya Listiani Dewi said in a declaration on Tuesday.

The Indonesian Biofuel Producers Association (APROBI) stated the industry had the capability to fulfill B40 need, with installed capability expected to increase to 20 million KL annually next year from 18 million KL now.

"However we will require more basic materials to satisfy B40 demand," Ernest Gunawan, the secretary general of APROBI told Reuters on Wednesday.

The biodiesel industry would need 13.9 million metric tons of unrefined palm oil to produce 16 million KL biodiesel next year, from the estimated 11 million loads needed this year, he added.

Indonesia's biggest palm oil association GAPKI said a decline in exports implied there would suffice basic materials to provide the B40 required for now.

But the market would need to evaluate "which one would be better", GAPKI chairman Eddy Martono stated, describing the possibility an increase in exports would make providing the domestic market less practical.

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

The ministry had checked the biodiesel, combined with 40% of palm oil, on a train for the first time previously today, while planning to evaluate the B40 mix on agriculture equipment, power plants and in the shipping market, it stated. (Reporting by Bernadette Christina and Dewi Kurniawati