PT Darma Henwa Tbk, as an integrated mining services company, has several business activities as follows:• Coal Mining Contractor ServicesCompany's core business is coal mining contractor services. Company provides services from land clearing, top soil removal, drilling, blasting, overburden removal, overburden dumping, coal getting, coal hauling, coalcrushing, to coal barging.• Mining Infrastructure and Other ServicesCompany expanded its business line to mineral mining and mining infrastructure. Company carries out road and bridge construction, installation of mining dressing plant, earthworks, drilling exploration, and civil consultantmanagement services.• Port Management ServicesAs a part of mining integrated services, the Company provide coal port management services through its subsidiary, PT Dire Pratama, which has been acquired since 2015. Dire Pratama operates coal management in Lubuk Tutung port area, including plant operation activity for coal crushing and blending process, also maintenance of plant and its supporting equipment. Dire Pratama integrates with the mining activity in Bengalon Coal Project in East Kalimantan Province owned by PT Kaltim Prima Coal.