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To the delight of the coal mining industries and the disgust of environmental groups, President Obama in March 2011 hitched the US energy wagon much more closely to coal.

Henan Hongxing Mining Machinery Co., Ltd is a joint-stock mining machinery manufacturing enterprise integrated in scientific research, production and marketing. It is located at the High & New Technology Industries Development Zone of Zhengzhou,China with an area of 50 thousand m2 which includes 15,000 m2 of standard heavy duty industrial workshop. Equipments are more than 160 pieces, including large and medium sized metal processing, riveting and installing equipments. There are more than 660 workers including 80 administrators with secondary and senior occupational titles and engineering technicians. In order to promote the competitive strength, the advanced technologies have been introduced from America, Germany, Japan and Australia, which established the international advanced production line, first-class modern testing base as well as research centers of sand maker, mill and mine-selecting equipment. Scientific management, advanced processing technology and innovative manufacturing theory make the company become the mining machinery manufacturing and exporting base in China.

Despite previous assertions on the promise of renewable technologies, US Secretary of the Interior Ken Salazar announced the competitive leasing of four public tracts of land in the Powder River Basin, Wyoming, covering 7,441 acres and an estimated 758 million tons of low-sulphur coal, which burns more cleanly than other coal types, making it a highly prized commodity for coal-burning power plants.

'As the number one coal producer from public lands, Wyoming provided nearly 40% of the domestic coal used to generate electricity last year,' said Salazar, 'and it's important that we continue to encourage safe production of this important resource.'

The four tracts have now all been sold off; two of the tracts went to Cloud Peak Energy while the remaining two were won by bids from Peabody Energy and Alpha Natural Resources. This bidding process generated hundreds of millions of dollars for the US Government.

It's a profitable process which the government is clearly getting used to, given that another large Powder River Basin plot was cleared in August by the Bureau of Land Management to be sold off. The 3,000-acre South Porcupine Coal Tract, which contains an estimated 400 million tons of coal, could well be snapped up by Peabody, given that the tract could extend mining operations at the company's adjacent North Antelope Rochelle Mine by nearly four years.

So for environmental groups, the Wyoming sell-offs represent a gross betrayal by the US President and a huge step back for the country's green energy future. These groups are already launching legal action and appeals against the leases. For the US mining industry, access to these new plots is a boon that will bring renewed life to a number of flagging mines.

'We're very pleased with our acquisition of the West Antelope II South Coal Tract,' said Cloud Peak president and CEO Colin Marshall in June.

'Together with our recent successful bid for the West Antelope II North Coal Tract, these tracts are expected to more than double the reserves at the Antelope mine and, along with the additional coal within an existing State of Wyoming lease near our Antelope mine, add more than 12 years of production.'

As the professional manufacturer of complete sets of mining machinery, such as Rotary dryers,Spiral separator,Stone production line, Henan Hongxing is always doing the best in products and service.