OceanaGold Corporation is a global gold mining company engaged in the exploration, development, and operation of gold mines. It operates several key assets, including the Haile Gold Mine in the USA, the Macraes and Waihi operations in New Zealand, and the Didipio Mine in the Philippines. The company focuses on optimizing its operations to maximize free cash flow, ensuring safe and responsible mining practices, and investing in exploration to increase its gold reserves and resources.