Ponce has held power at SQM since it was privatized under Pinochet in the 1980s and is still the largest shareholder.
The Interior Department's May 2 decision was unlawful and posed an immediate threat to the environment and the areas' outdoor-recreation economy.
KGHM has not had a CEO since Radoslaw Domagalski-Labedzki was fired on March 10.
Coal miners supplying Asia's rapidly growing economies have plenty to be optimistic about as prices and demand appear robust, but they should be wary.
South Africa's Richards Bay Coal Terminal has boosted productivity after a 1.34 billion rand ($98 million) machinery upgrade, the firm said on Thursday.
M&G Investment Management, said on Thursday it was supportive of a friendly cash takeover offer for Dalradian from private equity group Orion Mine Finance.
Hundreds of feet below thick forest blanketing the Canadian Shield, a squad of near-silent, battery-powered machines are tunneling toward gold in an experiment to ditch diesel.
The new measure will affect global mining firms including First Quantum Minerals, Glencore, Barrick Gold Corp and Vedanta Resources which currently pay a flat rate of 9.30 cents/kWh.
Petropavlovsk's largest shareholder, who is calling for an overhaul of the board, plans to sell the company's stake in an iron ore unit and draw up gold sector deals.
Japan has launched a complaint at the World Trade Organization to challenge South Korean anti-dumping duties on Japanese stainless steel bars.
The panel reviewed the 27 mines in the world's No. 2 nickel ore supplier that former Environment and Natural Resources Secretary Regina Lopez ordered closed or suspended last year.
Another 10 are injured after a dumping site for copper mining waste collapsed in the town of Kitwe in the country's Copperbelt province
The threat of new tariffs against China pits the world's two largest economies against each other and looks set to disrupt global supply chains for the tech and auto industries.
Rusal commissions bauxite mine at Dian Dian.
The Central African Republic (CAR) was banned from exporting diamonds in 2013 after rebels seized power.
Africa's most industrialised economy suffered power outages last week because of what Eskom had said was an "illegal protest action".
The Minerals Council South Africa said it does not support some elements in the latest draft of an industry charter.
So far, Trump has taken little action beyond tariffs of 25 percent on steel and 10 percent on aluminum on imports from China, the European Union and other countries.
Panasonic Corp expects to more than triple its cobalt consumption in five years' time.
Agreeing a new version of the charter is seen as instrumental to securing further investment in the mining sector.
China's State Council issued guidelines on Friday for previously announced measures easing restrictions on foreign investment.
China is the world's biggest car market and produces only a fraction of the platinum and palladium it consumes.
Negotiations to modernize the North American Free Trade Agreement started last August and were initially scheduled to finish by the end of December.
Trump is due to unveil revisions to his initial tariff list targeting $50 billion of Chinese goods on Friday.
Heavily in debt and with dwindling output, Gecamines has long complained about its joint venture terms.