Australian businesswoman Gina Rinehart who inherited a debt-ridden mining company 20 years ago, is predicted to become the world's richest person, according to media reports on Tuesday. Rinehart, 57, is already the richest Australian after her wealth more than doubled to $10.3bn this year. That still places her far behind Carlos Slim, Mexico's cellphone magnate worth some $73bn, but Rinehart's 100%-owned Hancock Prospecting has massive iron ore and coal projects that will start producing by 2014 and earn her annual profits of as much as $10bn.

China’s massive appetite for commodities is creating concerns for the global economy, the environment and workers in other countries. In a series of reports, VOA is looking at the economic power modern China wields. Chinese government and company officials are signing agreements at a dizzying pace around the world, including in places where few other foreigners invest.

Coal export tax rate would be expected to surge from the current 15 percent to 20 percent in a bid to restrict export of the fossil fuel, the Vietnam Ministry of Finance (VMF) said on Tuesday. VMF's proposal was made after the Vietnam Coal and Mineral Industries Group (Vinacomin) imported 9,500 tons of low-quality coal from Indonesia to supply power thermo-electric plants in Vietnam, making the country to become a coal importer for the first time.

Federal investigators are preparing to release their latest findings about the Upper Big Branch mine explosion to the families of the 29 coal miners killed in the April 2010 tragedy in southern West Virginia. Mine Safety and Health Administration

Canada’s Bear Creek Mining Corp. threatened legal action Monday after the Peruvian government cancelled the company’s plans for a silver mine in the country’s southern highlands. The Vancouver-based company said it hoped a political solution could be found, but that it would "vigorously defend" its rights.

La Mancha Resources reports that a fire partially damaged two electrowinning cells at its Hassaï mine, in Northeast Sudan, over the weekend. Although the site is continuing its normal mining and crushing activities, gold production will be partially impacted over the next few weeks until the two electrowinning cells have been replaced.

Rio Tinto is comfortable with the company's multibillion-dollar project budgets in Australia, where labour, input and services costs were all increasing, Chief Executive Tom Albanese said on Tuesday. "I'm comfortable that our budgets in Australia are being managed appropriately," Albanese said at a business lunch.

Zijin Mining Group Co Ltd said it plans a $280 million U.S. dollar-denominated bond issue, raising capital to acquire copper concentrate overseas for a smelter project of its unit. In a filing to the Hong Kong bourse on Tuesday, Zijin Mining said the bonds would have maturity of five years and a fixed interest rate of 4.25 percent per year during its term with interest payable semi-annually.

The proposed Oakajee iron ore port and rail project in Australia, which last week faced the loss of a key customer, may have hit another snag, with one the two developers saying it was having problems raising funding. Murchison Metals , a 50:50 partner in the multi-billion dollar Oakajee (OPR) project, said on Monday it was now in talks with several parties, including Chinese-related investors, interested in participating in its development.