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China holds one-third of the world's coal reserves; in 2016, the fuel accounted for around 62 percent of the nation's basic energy needs.
China is the world's largest coal producer and consumer. The industry has long been plagued by overcapacity and has felt the pinch over the past two years as the economy cooled and demand fell.
China is on track to eliminate all expressway toll booths on provincial borders by the end of the year, with related construction work expected to be completed by Friday, the Ministry of Transport said on Thursday.
China has remained the largest trade partner of the Association of Southeast Asian Nations for the ninth year in a row, with 4.82 billion of trade volume last year, 6.6 times as much as that in 2003, when the two sides established strategic partnership.
China is currently the world's third-largest gas consumer, after the United States and Russia, according to Wang.
