Chinese media reported that China's top economic planner had granted approval to power plants to import coal without clearance restrictions, except for Australia.
Flourishing demand in China and the United States, higher freight costs and tight scrap supplies are expected to fuel further rises in prices of the metal.
The Australasian Joint Ore Reserves Committee Code regulates the integrity of public reporting of exploration results, mineral resources and ore reserves.
Berg includes a historic resource estimate of 397 million measured and indicated tonnes grading 0.44% copper-equivalent and 14 million inferred tonnes at 0.34 copper-equivalent.