Hap Seng (Oil & Transport) Sdn Bhd was established in 18th June 1980, it is also a registered and licensed distributor of petroleum products; diesel, lubricants, petrol, bitumen, etc to the plantation, manufacturing, land and sea transportation and construction markets in both East Malaysia and Peninsular Malaysia. Hap Seng (Oil & Transport) Sdn. Bhd. operates as a subsidiary of Hap Seng Consolidated Berhad. As of February 19, 2013, Hap Seng (Oil & Transport) Sdn. Bhd. operates as a subsidiary of Hap Seng Trading Holdings Sdn Bhd.