The Bintulu Port Authority was established in 1981 . It started port operation in 1983 at Tanjung Kidurong . Following a privatisation exercise , Bintulu Port Sdn Bhd ( BPSB ) was founded on 23 December 1992 and commenced operation on 1 January 1993 . BPA is currently responsible for regulatory exercises and security of the port . Meanwhile , BPSB is responsible for cargo handling at the Bintulu International Container Terminal ( BICT ) . The port also provides Vessel traffic service to shipping vessels . The annual total cargo throughput is 45 @.@ 4 million tonnes , consisting of 58 % LNG and 42 % non @-@ LNG products . As of 31 December 2014 , it generated a total revenue of RM 552 @.@ 3 million per year . Bintulu Port is the busiest port in Sarawak .