Mongolia's Oyu Tolgoi copper exports underway -Rio Tinto
The mine is expected to make up a third of Mongolia's economy by 2020, and at full tilt produce around 450,000 tonnes of copper and 330,000 ounces of gold a year.
"Oyu Tolgoi starts production at a time when undeveloped quality copper assets are scarce and the outlook for copper continues to be strong," said Rio Tinto , which helped fund Oyu Tolgoi's $6.2 billion development cost.
Journalists had been invited to attend a ceremony at the mine located 80 km (50 miles) north of the Mongolia-China border on June 14 to mark the first exports. That was postponed to June 21, but the event was again canceled at the last minute.
Mongolia's mining minister has said the delay in exports was because the government and Rio disagreed on the arrangement of revenue generated from Oyu Tolgoi as well as the disclosure of the mine's $8 billion sales agreements.
Freeport Indonesia resumes underground mining, shipments
Freeport McMoRan Copper and Gold Inc has resumed copper shipments from its Grasberg mine in Indonesia as it restarts open-pit and underground mining, but expects output this year to drop by a fifth following a near two-month stoppage.
A training tunnel cave-in killed 28 people at the world's second-biggest copper mine in May, shutting operations across the mine site while safety investigations were carried out.
Freeport had sent two shipments of copper concentrate to refineries in Indonesia and China since June, well below its normal 10 shipments a month, the company said.
Chile Cuts Copper Production Forecast For 2013 As Global Slowdowns Impact Demand
Chile, the world's top copper producer, said Tuesday it expects to produce 5.53 million metric tons of the red metal in 2013, down from its previous forecast of 5.58 million tons, which was announced in April.