The miner lost more than half its value in the past year.

The AMCU demanded a monthly basic wage of 17,000 rand ($1,145), a raise of about 48%.

The Japanese Ministry of Economy, Trade and Industry approved the company's new prospecting rights applications.

The funds will be used to explore the Paterson project in Western Australia.

The Spanish Mountain gold project has a measured and indicated resource of 270.1 million tonnes grading 0.40 g/t gold.

Mexico is the world's top silver producer and one of the largest producers of copper and gold.

The gold giant also said it planned to begin the sale process for its 50% stake in the Kalgoorlie operation in Western Australia in the third quarter.

By late August, the company's field crew expects to complete the relogging of the historical drill core and validate the database for future resource estimates.