Foreign-funded enterprises are an important force in China's polystyrene production. In the production of polystyrene in China, foreign-funded enterprises play an important role. In 5 biggest polystyrene manufacturer in the country, there are 3 foreign, namely Zhenjiang Chi Mei Chemical Co (300,000 tons/year), the Yangzi-BASF Styrenics limited (142,000 tons/year) and LG Ningbo yongxing Chemical Co (100,000 tons/year). In 1999, the 3 companies total production capacity reach 542,000 tons of polystyrene, high impact polystyrene/general-purpose polystyrene for 500,000 tons, accounting for half the country's total production capacity. In future, China's foreign-funded enterprises expanded polystyrene production capacity will grow rapidly. By 2005, foreign-funded enterprises expanded polystyrene production capacity will be more than 1.4 million tons, accounting for nearly 60% of the country's total production capacity, will continue to be an important force in China's polystyrene production.