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China is among Heraeus' top three markets worldwide, after Germany and the United States. "But it's not the sheer size, but the dynamic and development in China that are important," Rinnert said.
China is Iran's largest trading partner and its largest crude oil market. During Xi's visit, the two countries signed a number of documents to cooperate in such areas as infrastructure, energy, finance, investment and news media.
China is one of the world's largest oil buyers. Over 60 percent of its oil comes from imports. Crude imports are dominated by State-run giants Sinopec, China National Petroleum Corporation and China National Offshore Oil Corporation.
China is the world's top pork producer and consumer. The huge loss of pork supply has led to a record import of 556,276 tons of meat in May, up 45 percent year year-on-year, according to customs data.
China has pledged to stay committed to further opening up, with measures including the establishment of a sound negative list management system in cross-border service trade, and promoting open platforms for piloting innovative development of trade in services.
