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China and Sierra Leone have had a strong, friendly relationship since they established diplomatic ties 47 years ago.

China Tendering and Bidding Public Service Platform, the central information hub for local public service platforms, had achieved 200 million data exchanges with 258 trading platforms by the end of 2017, said Ren Long, head of the China Tendering & Bidding Association, at an industry forum recently.

China and the Republic of Congo should also step up coordination on major global issues and make the global governance system and international order more equitable and reasonable, Xi said.

China Mobile will slash overseas roaming fees for customers who travel and work in places along the Belt and Road Initiative in response to the central government's demand to boost internet speed and accelerate the development of the digital economy.

China aims to raise its global competitiveness in the railway sector by expanding its railway networks with wider coverage and higher speeds. It plans to have 200,000 km of track laid by the end of 2035, including about 70,000 km of high-speed track, according to the latest national railway plan, issued in August by China State Railway Group, the country's top railroad operator.