Southern Blue Metal acquired "Wonga" from Hoskins Coal & Coke Company at Wongawilli in October, 1927. They used it on the quarry floor. It was withdrawn in September, 1929 and scrapped in 1942.This little saddle-tank engine had a long history, being built by Andrew Barklay Sons & Co., in Kilmarnock, Scotland, and first used on the mine railway of the British and Tasmanian Charcoal Iron Company in 1876. It was sold in 1879 and served in an oil shale mine at Hartley Vale, before moving to the Wongawilli Colliery in 1916.