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

If executed, the B40 mandate could increase biodiesel consumption to approximately 16 million kilolitres (KL) next year, the ministry stated, from 13 million KL estimated to be consumed in 2024.

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

The Indonesian Biofuel Producers Association (APROBI) said the market had the capability to fulfill B40 demand, with installed capacity expected to rise 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 informed Reuters on Wednesday.

The biodiesel industry would need 13.9 million metric lots of crude palm oil to produce 16 million KL biodiesel next year, from the approximated 11 million tons required this year, he included.

Indonesia's biggest association GAPKI said a decrease in exports suggested there would suffice basic materials to provide the B40 mandate for now.

But the market would need to examine "which one would be more valuable", GAPKI chairman Eddy Martono stated, referring to the possibility a boost in exports would make providing the domestic market less feasible.

Indonesia's palm oil output is approximated to reach 54.4 million loads in 2024, a 2.26% boost from in 2015, while exports are expected to decrease by 2.47% to 29.5 million heaps as domestic consumption rose, driven by biodiesel mandate.

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