The British Geological Survey (BGS) on Wednesday published the latest list of the 52 elements, minerals and metals most at risk of supply disruption because global production is concentrated in a few countries, many with unstable governments. Surprisingly rare earths used in green technology and defence do not top the list but comes in at number five. Antimony, extracted mainly from stibnite (pictured), widely used for fireproofing is most at risk. The platinum group metals (auto catalysts) hold the second spot while niobium used in touch screens and scanners and tungsten for cutting tools are also at risk of supply disruption as a result of increased competition among the world's growing economies, political instability, resource nationalism, along with events such as strikes and accidents. China is the number one producer of 50% of the 52 chemicals on the list and produces 75% of the world's antimony.

Hathor Exploration announced early Wednesday that its board unanimously recommends that shareholders reject Cameco's unsolicited offer for the company calling it 'opportunistic' and 'predatory' coming in the wake of the Fukishima disaster in Japan that sent uranium oxide prices to lows of around $50/pound. Hathor opened down slightly on Wednesday trading at $4.15 versus Cameco's offer of $3.75. Yesterday the company said a preliminary economic assessment of its Roughrider uranium deposit showed it would potentially be one of the lowest cost uranium producers in the world at only $14.44/lb U3O8. The junior uranium explorer has gained about 56% since the offer and 121% since the start of the year. In contrast $8 billion industry bellwether Cameco’s stock has almost halved in 2011.

Barrick Gold (TSX:ABX) will spend half a billion dollars to expand two of its mines in Peru, Bloomberg reports. Toronto-based Barrick, the world's largest gold miner, says it will invest $$550 million to expand operations at its Alto Chicama and Pierina mines by 2013. Quoting the company's country manager Darrell Wagner, Bloomberg states that the investment will serve to extend the minelives of both mines by four years, with production dropping as reserves are depleted:

Hanjin Shipping signed a 15-year consecutive voyage contract on Wednesday with Korea Southern Power (Kospo) to provide two capesize vessels for the transportation of soft coal.

A dispute in the north of New Caledonia has stopped the export of nickel ore from the SMSP site to its South Korean partner, Posco. Members of the Kaala-Gomen tribe claim that the United Nations Declaration on the Rights of Indigenous Peoples provides for them to have a share of the profit drawn from mining.

Firestone Ventures Inc.(CVE:FV) reported high-grade zinc-lead-silver results from "La Luna" project, 80 km north of Guatemala City, Guatemala.

Junior explorer Hathor Exploration on Tuesday said a preliminary economic assessment of its Roughrider uranium deposit showed it would potentially be one of the lowest cost uranium producers in the world at only $14.44/lb U3O8. The junior uranium company is the target of a hostile bid from world number one uranium miner Cameco and has gained about 56% since the offer and 121% since the start of the year. Hathor believes its worth more than the offer price and said it will formally respond tomorrow (September 14) and urged shareholders to sit tight.

The cost of borrowing for Brazil's Vale has risen to record highs relative to competitors BHP Billiton and Rio Tinto, as the Brazilian government looks to reap more in mining taxes amid surging metals prices, Bloomberg is reporting: The world’s largest iron-ore mining company’s dollar bonds due in 2019 yielded 4.22 percent, a record 152 basis points more than similar-maturity bonds from higher-rated BHP. The yield gap has swelled 61 basis points, or 0.61 percentage point, this year. The spread over Rio Tinto Group bonds reached 84 basis points yesterday after averaging 51 points in the first seven months of 2011.

The Endako molybdenum mine in British Columbia has been extended another two years, Thompson Creek Metals (TSX:TCM) said yesterday. The Denver and Vancouver-based company announced a 9% increase in mineral reserves from 286.2 million to 312.2 million pounds of molybdenum at the mine, located near Prince George, BC., meaning the mine will operate until 2028. "The updated reserves estimate illustrates the significant value of the Endako mine. The current report has revised our reserves estimates as a result of improved engineering, refined geological modeling and new drilling data. We believe the resource base at the Endako mine will continue to expand with our 2011 drilling program and future exploration," CEO Kevin Loughrey said in a statement.