The project covers about 820km2 in Queensland's highly prospective Surat Basin. The project is near Stanmore's The Range, a potential 5Mt/a open cut export grade thermal coal project. The Clifford project adjoins Glencore's Wandoan project and is targeting thermal coal deposits at depths amendable to open-cut mining.
The joint exploration initiative with JOGMEC played a key role in the identification and development of new, long term sources of high quality thermal coal highly suitable for Japanese electricity generators. A concept study was completed in 2016 based on production at 5.7Mt pa ROM coal. A total Coal Resource was delineated to the JORC standard (200Mt indicated; 430Mt inferred).