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China and the United States are each other's biggest trade partners, with each benefiting from the other's success, Michael Bloomberg, the billionaire former mayor of New York City, commented at a recent forum.

China Unicom said it hopes to bring the arts activities in the venues to the "cloud", enabling hundreds of millions of people thousands of miles away to watch ultra-high-definition images of such performance at the same time.

China Petroleum and Chemical Corp is one of China's largest producers of hydrogen, producing over 3 million metric tons last year, mostly made from fossil fuels or produced as a by-product of its refining and chemical operations. For example, Sinopec's Shanghai hydrogen refueling stations are supplied by purified by-product hydrogen from the Gaoqiao petrochemical facility based in the city.

China and Tajikistan are neighbors with close relations and strategic partners with high-level mutual trust, said Xi.

China Post Group Corp, the State-owned postal service provider, said last month that it is aiming for more than 90 percent of its waybills to be digital and for over half of its packaging materials to be biodegradable by 2020.