as a result of the favourable outcome, obtained during a goverment survey (by the engineer of the mining departement E.A.DOUGLAS) of the coalfields in the residency palembang in the year 1915
As a result of the favourable outcome, obtained during a goverment survey of the coalfields in residency Palembang in the year 1915, at which time the discovery of high-calorie coal raised hopes that combustible had been found here, equal to the best European coal,