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China aims to increase domestic crude oil output to 200 million tonnes by 2020. Major tasks for the oil industry include accelerating exploration to ensure domestic oil supply, speeding up construction of pipeline networks and developing clean alternatives.

China Mobile, the country's biggest mobile operator, has started outdoor tests of the technology in Shanghai, Guangzhou, Hangzhou and Fuzhou. It expects to commercialize it by 2018. China Unicom, meanwhile, said it aims to start commercial deployment by the end of the year and make its coverage nationwide in 2018.

China Unicom said in its financial announcement on Tuesday that it has already set up 260,000 5G BTS so far, and the number is expected to hit 370,000 by the end of this year.

China aims to raise its global competitiveness in the railway sector by expanding its railway networks with wider coverage and higher speeds, according to the country's top railway operator.

China and Niger should enhance Belt and Road cooperation and implement major projects in areas such as infrastructure, energy and agriculture, President Xi Jinping said on Tuesday. Xi made the remark while meeting with Niger's President Mahamadou Issoufou at the Great Hall of the People in Beijing. Issoufou is paying a state visit to China from Sunday to Thursday.