St Barbara Ltd is an Australian gold mining company that operates in Western Australia, Papua New Guinea, and Canada. The company was founded in 1969 and is headquartered in Melbourne, Australia. St Barbara's primary focus is on the exploration, development, and production of gold deposits. The company's flagship operation is the Gwalia gold mine in Western Australia, which has been in operation since 1897. St Barbara also operates the Simberi gold mine in Papua New Guinea and the Atlantic Gold mine in Canada. The company is committed to sustainable mining practices and has a strong focus on safety, environmental management, and community engagement.