Its main business is Guangxi Yuchai Machinery Company, which is one of the largest medium-duty diesel engine manufacturers in China.

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The company says there are 33 million light- and medium-duty trucks on the road, and converting them to plug-in hybrid results in an 80 to 200 percent fuel economy improvement.

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Unlike the light-duty vehicle market, most medium- and heavy-duty truck purchasers operate on slim profit margins where fuel costs are a major factor in their economic survival.

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Its engine segment (49% of net sales in 2010) produces a wide range of engines that run on diesel and natural gas used in heavy-, medium- and light-duty trucks, buses, automobiles, RVs, and industrial vehicles.

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Already, the Obama Administration has made historic progress through investments in clean energy, new fuel economy standards for cars and light-duty trucks that will save approximately 1.8 billion barrels of oil, and steps toward the first-ever fuel economy standards for medium- and heavy-duty trucks.

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In addition to medium and heavy-duty trucks and buses which are clearly used by businesses, commercial vehicle numbers in China include sales of light trucks and mini trucks and buses, many of which are used by individuals and small businesses.

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