Investor Presentaiton

Coal Mining Contracting ☐ - - Delta Dunia Coal mining contractors provide overburden removal, coal mining and coal transportation services The contractors hire their own labor force and own and operate fleets of heavy equipment such as bulldozers, excavators, cranes, drilling machines, prime movers and dump trucks Contractors are responsible for the planning and scheduling of mining operations within parameters set by the mine owners The mine owners advise contractors, in advance on a yearly basis, of the required coal and overburden production volumes according to the overall mine plan. The contractors then perform short-to-medium term planning and scheduling of mining operations Coal mining contractors play a critical role in the Indonesian coal industry, producing ~90% of coal output BUMA is the second largest mining contractor in Indonesia with scale advantages Overburden Removal / Coal Mining Land Clearing Top Soil Removal Drill & Blast PIT Load & Haul Loading. Hauling Dumping & Spreading DISPOSAL 22 22

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