Acacia blames Barrick for barring it from Tanzania talks, mulls takeover bid

Potash Corp. (TSX, NYSE:POT), Canada's largest fertilizer producer, said Wednesday it was revising its outlook because of delays in reaching contracts with commodity buyers in India and China.

BHP Billiton (ASX,LON,NYSE:BHP), the world’s biggest miner by market value, posted Wednesday a weaker than expected September quarter from its West Australian iron ore mines as the company’s work on expansion plans affected production figures.

Mexico-focused SilverCrest Mines has logged a record level of silver output for the third quarter of 2012.

Africa-focused Canadian miner Ivanplats Ltd, founded by billionaire Robert Friedland, raised over Cdn$300 million ($305 million) in its initial public offering in Toronto on Tuesday, after selling shares at $4.75 each, on the lower end of the marketed range.

Harry Winston Diamond Corp. (TSX:HW, NYSE:HWD) reduced Tuesday its 2012 production target for the Diavik mine to 7.4 million carats as the operation shifts its efforts to concentrate on processing higher-valued diamonds.

Petaquilla Minerals Ltd. (TSX:PTQ) has rejected as inadequate an unsolicited, a $112-million takeover bid for the company by Inmet Mining Corp. (TSX:IMN), which operates a gold mine adjacent to Petaquilla’s Molejon project in Panama.

Argonaut shares drop 6.87%

France's International Energy Agency has painted a fresh picture of the international crude oil industry which foresees major changes to regional focus and distribution.

Canadian Prime Minister Stephen Harper gave investors more reasons to speculate about the final outcome of the deal, as he said that China's “very different" political and economic systems are a concern for his government.