Frik Els , Editor

A statement put out by Ivanhoe Mines on Monday telling investors that its Oyu Tolgoi project remains on track and pooh-poohing rumours about the Mongolian government reneging on the deal that Ivanhoe and partner Rio Tinto spent five years negotiating did little to ease the fears of investors. By lunchtime Ivanhoe had plummeted more than 21.3%, crashing through the $10 billion market valuation level and taking the week's losses to 33%, with the number of shares changing hands already exceeding the daily average. Ivanhoe also appeared to have patched things up with Rio Tinto on Monday after it said last week it's unhappy that the world's number two miner told investors about possible delays to the mega-project.

The Blue Mountains Gazette reports the Australian Coal Association says $1.3 billion in proposed government compensation would delay by only one year the premature closure of four of the 21 mines that an industry survey found were under threat from the government's carbon tax. On top of the carbon tax set to kick in mid-2012, Australian miners also have to contend with the new minerals resource rent tax set at an effective 22.5% rate on the so-called super-profits of the extractive industries.

Gold for December delivery dropped $40, or 2.5%, to just under the $1,600 an ounce level in midday trade on the New York Mercantile Exchange on Monday, but had recovered from sharp losses which saw the metal reach a low of $1,535 shortly after the open. Talk that a bailout for the Eurozone could top 2 trillion euros failed to boost the demand for gold as an inflation hedge. Gold has now declined more than $300 since setting an intraday record of $1,923.10/oz in the second week of September, but is well clear of its year low of just under $1,300/oz and most analysts remain positive about gold's long term trend.

British Telecom on Friday had to talk down the value of its 75 million miles of copper cables criss-crossing the United Kingdom after an analyst at investment bank Investec calculated that the scrap value of the copper is £50 billion ($77 billion) at today's prices – almost $50 billion more than BT's market cap.

Bloomberg reports the London Metal Exchange which handles some 80% of global trade in industrial metals futures, told members it may get a takeover offer after multiple approaches from potential bidders. The 134-year-old exchange is owned by the trading houses and banks like Barclays and JP Morgan that trade on the market which keeps fees low. Despite talk of an $1.2 billion offer as far back as 2008, it is unclear how receptive they would be to selling out after a senior executive of the exchange told Reuters in March it had no plans to change its independent status despite increasing competition, particularly in Asia.

CTV reports a US federal appeals court threw out an antitrust class-action lawsuit accusing seven companies of engaging in a global conspiracy to raise the price of potash since 2003 on the grounds that it could not rule on the alleged wrongful conduct on markets in India, China and Brazil. The defendants included Agrium, Potash Corp. of Saskatchewan, Mosaic Co., and four companies that conduct mining operations in Russia and Belarus: Uralkali, Silvinit, Belarusian Potash and International Potash. Together the groups produce some 70% of the world's potash.

After a three-week hunt Canada's Silvercorp Metals on Friday found the alleged short-sellers behind an effort to drive down the company’s stock price. The company is suing two New York-based websites – Chinastockwatch.com and Alfredlittle.com – for spreading false information. While Silvercorp was trading down 1.4% in early afternoon trade losses among silver heavyweights were much deeper with bellwether Silver Wheaton skidding 11% as the precious metal plummeted 17.7% to barely above $30/oz. Silvercorp is up 0.6% over the last two trading days against the S&P TSX index which has bled 7%. It was the worst trading day for silver in decades.

December gold suffered another day of steep losses, dropping $82 an ounce, or 4.7%, to $1,659.50 in New York in noon trade on Friday, as investors were forced to raise cash to cover losses suffered on global stock markets this week. Copper extended its sharp declines on the London Metal Exchange falling as much as 7.3% to $7,115.75 a metric ton. Prices declined for a sixth day in a row losing 14% this week and have now slumped 26% from the record high of $10,190 set in February. Silver was hardest hit on Friday, plummeting 11.2% to $32.48. One metals analyst summed up the day this way: “We’re in a downward spiral, and no one knows when it’s going to end."

Weak manufacturing data from China and a US economy deemed to have "significant downside risk," saw benchmark North American crude futures drop more than $5 to just above $80 a barrel, bringing the discount to international oil prices to more than $25. The biggest oil sands player, Suncor Energy (TSE.SU), tumbled 6.8% to C$26.21 on the Toronto Stock Exchange, bringing its year to date losses to more than 30%. Canadian heavy oil – all of which goes to the US – sells for $15 less than US crude, meaning oil sands developers have to deal with an effective oil price of $60-$70 a barrel that puts at risk many of the $100 billion of projects on the go in Alberta.

AFP reports a recent outbreak of fighting between rival armed groups in the Central African Republic – one of the poorest countries in the world – vying for control over diamond mines left 43 dead, an army source said Thursday. The toll originally stood at 30 following week-long clashes in the central town of Bria which erupted on September 11. Officials said the clashes are between the Ronga and the Goula, two rival ethnic groups who have feuded over the region's diamond mines for years.