The company said the cargoes from Adang Bay and Muara Pantai will feed its power station in Paiton from 5 November 2015 to 4 November 2020, although this could be extended by another five years.

Ships will take 1.8m to 2.2m tonnes per year from Adang Bay and 0.9m to 1.1m tonnes from Muara Pantai.

There is an option to increase the annual total quantity to a maximum of 3.5m