The group is seeking a total investment of $246 million for the refineries and related processing centres, in Ghana and the Democratic Republic of Congo.
Production of copper cathodes (new metal) in the second quarter rose to 291,000 tonnes from 288,000 tonnes.
The charter lays out requirements for black ownership levels and other targets.
Roberto Venegasa, an employee of equipment supply firm Finning, died during routine maintenance work at the mine, the company said.
The World Platinum Investment Council sees oversupply in the platinum market of 180,000 ounces in 2018.
Net profit for the first three months of the year stood at 439 million zlotys ($121.08 million), compared with the 453 million zlotys expected by analysts.
Argosy's Rincon project in northern Argentina will start producing 500 tonnes per year of lithium carbonate equivalent (LCE) next month.
BHP shares rose nearly 2 percent, hitting their highest in about 45 months.
Shanta Gold will conduct further exploration near its main mine in Tanzania after cutting costs in the past year to cope with tougher mining laws.
The company had already lost between one million to 1.2 million tonnes of scheduled bauxite production because of the strike.
The proposed deal with Sibanye is conditional upon Lonmin retaining a positive cash balance by the time it is to close in the second half of the year.
Tanzania is seeking a bigger slice of the pie from its vast mineral resources by overhauling the fiscal and regulatory regime of its mining sector.
The price of steelmaking raw materials in China rose for a second session on Monday on optimism that steel mills will replenish stockpiles as steel production increases and as iron ore inventories at ports decline.
Thor Explorations' Segilola project would be Nigeria's first large-scale gold mine, and it's expected to come online in early 2020.
The Honduran subsidiary of Aura Minerals has angered the citizens of the town of Azacualpa by removing over 350 corpses from a cemetery to make space for its San Andres open-pit gold mine.
One man is still missing at the Zofiowka mine in southern Poland.
Votorantim said profit was also boosted by sales growth in its aluminum and cement businesses.
The project joins two mines - one belonging to Goldcorp and the other to Teck Resources.
India's rising coal imports are contributing to higher demand across Asia this year.
The metals business is one of the largest copper, zinc and lead concentrates merchants worldwide, according to Louis Dreyfus.
Companies have said the cycle of double-digit, above-inflation pay hikes cannot be sustained, unless prices rise considerably.
The world’s second-largest platinum producer posted an ad on Friday in the local Mail & Guardian newspaper seeking tenders for the project.
The alleged dumping margins ranged from 12.1 percent to 231.7 percent, and U.S. imports of the products from China in 2017 were estimated to total $388 million.
Evraz, which controls Raspadskaya, said all miners had been evacuated and that the blaze is thought to have started in the mine's technical equipment.
ICL, which also produces about a third of the world’s bromine, is the world’s sixth-largest producer of the fertilizer ingredient.