The UK's Telegraph reports two hundred wealthy Democrats were paying $5,000 a head this week to have lunch with Barack Obama – up to $7,500 if they also wanted their pictures taken with him – at San Francisco's posh W Hotel. Outside it was very different – some of the party's biggest donors were protesting. There is increasing bitterness on the left about Obama's perceived closeness to industry and what they see as his failure to honour environmental promises. Like the San Francisco protesters many former campaign donors are now threatening to withdraw financial support if he fails to block the Keystone XL oil pipeline and putting off the decision – hinted at by the US State Department this week – should not come as a surprise to anyone following Obama's poll numbers..

Arabian American Development Co, announced over the weekend it has completed construction of the gold, silver and copper mine in Saudi-Arabia which it is developing with Saudi's Al-Kobra Mining Company (Amak). The Texas-based company, which owns 37% of Amak, said it will turn the facility over to the Chinese surface operator to begin operations end-November. In July Arabian American Development got a $37m injection from a fund controlled by the League of Arab States. Shareholders in the Nasdaq-listed company saw the value of their investment rise a cool $107m as a result of the transaction and over the last month stock in the 44-year old company has risen 28.5%. The mine in a Yemen border province is the only non-government mine in the Saudi kingdom and is scheduled to begin production early next year.

Reuters reports unionised Chilean workers at Collahuasi, the world's third most productive copper mine, halted production on Saturday in a strike demanding a wage bonus, but were back at work on Sunday after after reaching an agreement with management, the company and union said. Collahuasi is owned by Switzerland's Xstrata and the Britain-based Anglo American. Collahuasi produced 504,000 tonnes of copper in 2010, when output was hit by a month-long strike. The mine expects to produce 500,000 tonnes of copper this year. It supplies roughly 3% of the world's copper, half that of Chile's other giant copper mine Escondida.

The regulatory process for Enbridge’s Northern Gateway pipeline to connect Alberta's oil sands and markets in Asia, is shaping up to make the TransCanada's Keystone XL approval look like a cake walk. Starting in January, an unprecedented 4,000-plus people – the vast majority environmental activists – will speak for a collective 650 hours at public hearings on the controversial pipeline that would stretch for 1,170km from Brudenheim in Alberta to a new marine terminal at Kitimat in northern British Columbia, Canada. The project is already almost a year behind schedule and would not go into operation in 2017 at the soonest.

The Guardian reports the approval for Britain's only commercial goldmine despite opposition from environmental groups has sparked fears for the Loch Lomond and the Trossachs National Park national park. The mine is around 1 kilometre inside the park boundary. It was the second time Sydney-listed mining company Scotgold had applied to mine gold and silver at the Cononish site, which it bought in 2007. It was turned down last year over concerns about waste – 400,000 tonnes will be produced over the mine's 10-year life – and rehabilitation. At current prices, Scotgold believes there could be around $275 million of the precious metals at the site and it could start producing ounces early in 2013.

The Manawatu Standard reports giant Chinese state-owned Shanxi Coal is understood to be in the running to buy New Zealand's Pike River Coal as part of a joint bid with local miner Solid Energy. Bids closed a week ago, with four players making offers, sources said. One Indian company is believed to have pulled out and another Indian company was still understood to be in the running. The state-owned mine operated by Solid Energy was put up for sale as part of a privatization programme by the New Zealand government and after an enormous methane explosion ripped through the mine near Greymouth on November 19 last year killing 29 men.

A new minimally-invasive procedure that can safely and effectively treat brain aneurysms without open surgery by implanting an FDA-approved device consisting of a flexible braided mesh tube made of platinum and nickel-cobalt chromium alloy directly into the artery has been chosen by research facility Cleveland Clinic as one of the top 10 medical innovations for 2012. The 90-year old multispecialty academic medical center which has pioneered among others coronary artery bypass surgery and performed the US's first face transplant also included a new Concussion Management System for Athletes, Genetically Modified Mosquitoes to Reduce Disease Threat and Wearable Robotic Devices in the top 10.

Safety in the US mining industry has made significant progress over the decades. However, the early 2010 disaster in West Virginia was the worst since 1970 and will potentially have a significant impact on mine safety legislation, similar to the MINER Act of 2006, which was a response to the Sago Mine disaster and other mine fatalities in early 2006. Generally, based on the historically elevated fatality rate, safety experts in the industry believe that the small mines have a relatively poor safety record as compared to the large mines; however, the results of a new study by the Society for Mining, Metallurgy, and Exploration indicate that the opposite is likely true.

Reuters reports Romania has launched the sale of its biggest copper mine Cupru Min SA Abrud via a tender, the government's industry privatisation office said on its website. The deadline for bids is Jan. 17 deadline. Romania wants to sell 100% of the mine which sits on about 60% of the European Union member's copper reserves equal to roughly 900,000 tonnes. Cupru Min is based in Abrud, Alba County, Romania and operates the Roşia Poieni copper mine. The company says deposits amount to more than 1 billion tons ore with an average of 0.36% Cu and 1.8% S. Copper production began in 1983 and the designed capacity of the mine is 9 million tons of ore extracted and processed per year with expansion to 15 million tons per year.