Border dispute temporarily halts Canadian miner’s operations in Burkina Faso

News that the Mongolian government is rethinking a 2009 deal that gave Ivanhoe Mines and Rio Tinto a 66% stake in the massive Oyu Tolgoi gold and copper project has sent the shares of Ivanhoe down more than 9.5% in Toronto on Wednesday afternoon, while Rio's ADRs gave up over 6% in New York trade. The bad news appears to have led to a bust-up between the two companies, with Ivanhoe founder and CEO Robert Friedland saying on Wednesday Rio's senior management has been making "unauthorized and incomplete" statements about Oyu Tolgoi and that he will take the matter up with the world's number three miner. Ivanhoe is closely tied to Mongolia where it also controls SouthGobi, a producing coal mine. SouthGobi plummeted 10% on Wednesday.

George Soros hit the number seven spot on the list of Forbes richest Americans. Forbes announced the list on Wednesday. His previous position was position number 14. Forbes says he is worth $22 billion this year, up $7.8 billion from last year. More disclosure about his financial holdings helped Soros climb the list.

Freeport-McMoran Copper & Gold reported on Wednesday that the strike at its Grasberg operations in Papua, Indonesia, which began Sept. 15, is costing the company about 3 million pounds of copper and 5 thousand ounces of gold for each day of the work stoppage. The company says that it is negotiating a two-year extension of its bi-annual collective labour agreement, which is scheduled for renewal on September 30, 2011.

After declaring a 730,000 tonne increase of contained copper in mineral resources at Kennecott Utah Copper, Rio Tinto (NYSE:RIO) expects to head underground. Rio Tinto says that the mineral resource, known as the North Rim Skarn, is a high-grade copper-gold skarn deposit located approximately 300 metres below the current Bingham Canyon pit, the world's deepest open pit mine. The company has committed US$165 million to complete the next stage of exploration and development studies by 2014.

The Mongolian government is discussing possible changes to a 2009 investment agreement for the massive Oyu Tolgoi copper-gold deposit, media reports quoted Mongolia's finance minister, S. Bayartsogt, as saying Tuesday. The 2009 deal gave a 66 percent stake in the multibillion-dollar Oyu Tolgoi project in Mongolia's South Gobi region to the Canadian miner Ivanhoe Mines (Toronto: IVN.TO - news) , in which mining giant Rio Tinto now owns a 48.5 percent stake. The government has the remaining 34 percent stake.

Venezuelan President Hugo Chavez followed through on a promise he made last month to ban the export of bullion under a broad scheme to nationalize the country's gold industry, The Wall Street Journal reports (sub required): Under guidelines published in the Official Gazette on Monday, the government said "all gold that is obtained through mining activity within national territory will be handed over to the Bolivarian Republic of Venezuela." The decree also gives companies 90 days to form joint ventures for gold mining, in which the government will hold a 55% stake.

Lakeland Resources (TSX-V:LK) was up nearly 30% at the close of trading Tuesday, after the company said it made a new gold discovery on its Midas property in Ontario, Canada. A 1500-metre drill program returned grab sample values ranging from 2 g/t to 130 g/t, Lakeland said, with one non-assayed sample containing 5.92 g/t gold over 4.70 metres.

FLSmidth has today signed an agreement to acquire the assets of the privately owned company Knelson, a Canada based corporate partnership which is active within the minerals industries. Knelson develops, manufactures, and installs equipment for the recovery of precious metals such as gold, platinum and silver, as well as the enhanced gravity separation of base metals and industrial minerals with over 3000 installations in over 70 countries worldwide. The customer base comprises all the major gold, platinum and silver mining companies.

VANCOUVER, BRITISH COLUMBIA--(Marketwire - Sept. 20, 2011) - Empire Mining Corporation (TSX VENTURE:EPC) ("Empire") is pleased to report the final assay results for the remaining drill holes from Phase I drilling at the Demirtepe copper-gold-silver-molybdenum project located in western Turkey, where drilling in the Main Zone has consistently intercepted significant shallow mineralization in every hole completed. The most recent assays include the following significant copper-gold-silver and molybdenum intersections