Frik Els , Editor

After surging last week, industry bellwether Molycorp led a slide in rare earth mining stocks with a 5% drop by early afternoon on Thursday on news China is raising REE export quotas for the second half of the year in reaction to a WTO ruling. The exact impact of the decision is not yet clear: the new quotas only bring 2011 exports in line with last year prompting the EU to call it "highly disappointing." And fresh data from Lynas Corporation, world no. 2 outside China, show the price of a basket of eight REEs jumping 140% in just over two months.

Shares in Canada’s Bear Creek Mining Corporation bounced by over 4% at the open on Wednesday after the company announced it was launching legal action against the Peruvian government to regain its license for a mining concession in the south of the country. Peru cancelled Bear Creek’s licence in late June after protests against the Santa Ana Silver project resulted in five people being killed by police at an international airport 160km away from the site. Bear Creek’s injunction comes weeks ahead of the swearing in of the South American nation’s new leftwing president Ollanta Humala (pictured).

The Namibian reports 500 workers at Rio Tinto's Rossing uranium mine in Namibia downed tools on Tuesday in a dispute over production incentives. The news comes in the wake of a senior Rio Tinto executive telling Dow Jones on Monday that the mine – which accounts for over 5% of world production of uranium oxide – is losing money at the current price of under $55 per pound of U3O8. Rossing which lies partly inside the Namib-Naukluft Park (pictured) has produced uranium since 1976. Rio Tinto owns 70% while the Iranian government with 15% is the second largest shareholder.

Proving that nothing is a sure bet – not even the development of prime bitumen fields – Oilsands Quest on Tuesday suffered a second day of heavy losses, dropping 10% shortly after the open. The losses come after the company said it will ask for more cash from investors because its almost one-year long global quest to find a heavyweight partner has come up empty handed. It is also bad news for Saskatchewan’s oil sands aspirations as Oilsands Quest was hoping to build the province’s first thermal mine but does not have the wherewithal to go it alone.

Shares in Vancouver-based Great Panther Silver recovered early losses to trade in positive territory by midday Tuesday after the company reported disappointing silver output at its two 100%-owned silver and gold mines in Mexico. The counter opened down more than 3% before turning positive after announcing a 6% drop in silver production as a result of falling grades and unsold inventories at its Guanajuato operation which the company ascribes to an oversupply of concentrate on the world market. Silver Panther is still up 35% over the month after investors picked up the stock following record first quarter earnings.

Shares in Anfield Nickel's jumped more than 4% to within striking distance of a year-high on Friday after the company released the results of its economic assessment of the Mayaniquel project in Guatemala. Anfield said the project may generate approximately 700 permanent jobs and 800 direct jobs during the three year construction period and potentially $1.8 billion in taxes and government royalties payable to the Guatemalan government.

The price oil sands producers can charge fell to $96/barrel on Friday while global crude prices remained firmly around the $118/barrel level as Canadian supplies swamp the US. Canada exports two million barrels of crude to the US per day of which 1.5m come from oil sands meaning Alberta's bitumen mines are losing out on a possible $33m in revenues each and every day. Building new pipelines would remove the glut but it’s almost three years since TransCanada first applied to extend its Keystone pipeline and Enbridge’s project to pipe crude to the west coast for export to Asia will languish for another 18 months in a review process. All this while US need for crude continues to seep away and Chinese demand grows at double digit rates.

Stocks in heavyweight rare earth miners soared on Thursday with Molycorp adding 2.5% after trading up over 4% earlier and Lynas Corp wiping out losses it suffered on delays at its Malaysian refinery, gaining 4% on huge volumes. REE stocks are usually volatile but investors digested a lot of news this week: first there was the discovery of massive marine rare earth deposits which was quickly followed by deep scepticism, then the WTO ruled China’s export restrictions violate trade rules and now some analysts believe of the 150 listed REE projects only five will ever enter production.

Zimbabwe’s state-controlled Herald newspaper reported on Thursday the Harare government is investigating De Beers over claims it smuggled out gems worth "hundreds of millions of dollars" from the controversial Chiadzwa fields. De Beers spent eight years exploring the fields, but later claimed it had failed to find any meaningful deposits according to Zimabwe's deputy mines minister. Diamonds were found by villagers in Chiadzwa in 2006, leading to a frenzied diamond rush that was eventually crushed by the army. Zimbabwe's diamonds are the subject of an international ban although most industry watchers believe it is being widely flouted.

Unrest and strikes in Indonesia, Chile, Australia and Africa, a shortage of skilled workers in North America and rising labour costs all over the globe are quickly becoming the most serious downsides of a mining boom that started almost a decade ago. While a historically high overall jobless rate is masking spiking wages in the resources sector in the US, workers in emerging markets are shutting down operations of mining companies deemed not to be sharing record profits fairly.