St Barbara Ltd is an Australia-based gold mining company. The Company’s assets include the Leonora Operations in Western Australia, the Simberi Operations in Papua New Guinea, and the Atlantic Gold Operations in Nova Scotia, Canada. Leonora Operations include the Gwalia mine, which is located approximately three kilometers (km) south of the town of Leonora, Western Australia. The Simberi Operations occurs on the eastern half of the Simberi island covered by approximately 2,560 hectare Mining Lease (ML136). The Atlantic Gold operation is located in Moose River Gold Mines, near Middle Musquodoboit, approximately 60km north east of Halifax, Nova Scotia. The Gwalia mine has operations with approximately 2.1 million ounces of gold in reserves at a grade of 6.4 grams per ton. Ore at Simberi is sourced from various pits, including the Sorowar Pit. The Atlantic Gold operation has a combined estimated of approximately 1.9 million ounces of gold in reserves at a grade of 1.12 grams per ton.