 Double tracking and electrification of the West Coast line between Ipoh and Padang Besar started in January 2008 and was completed by November 2014, adding a further 329 km of double-tracked and electrified railway to the network.Malaysia's national petroleum company Petronas owns a railway line which links its oil refinery complex and the nearby town of Kerteh, Terengganu, with the petrochemical complex in Gebeng, Kuantan, and Kuantan Port near Kuantan, Pahang.The line is mainly used to transport petroleum products, but it has been opened up recently for general freight transport, with operation being conducted by KTM.