NEWCREST MINING'S CADIA VALLEY OPERATIONS is one of Australia’s largest gold mining operations and is 100 per cent owned by Newcrest. It is located approximately 25 kilometres from the city of Orange in central west New South Wales and is 250 kilometres west of Sydney. Cadia comprises three mines - the Cadia East underground panel cave mine which commenced commercial production on 1 January 2013, the Ridgeway underground mine (currently on care and maintenance) and the Cadia Hill open pit mine (currently on care and maintenance). At Cadia, Newcrest produces gold doré from a gravity circuit and gold-rich copper concentrates from a flotation circuit. Gold doré from Cadia is refined at the Perth Mint and concentrates are piped to a dewatering plant at nearby Blayney and sent by rail to Port Kembla in New South Wales for export mainly to Eastern Asia. In the financial year ending 30 June 2018, Cadia produced 599,717 ounces of gold and 61,764 tonnes of copper. Over 9 million ounces of gold has been produced from Cadia since commercial production commenced in 1999.