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China and Monaco have set a fine example of friendly exchanges between countries that are different in size and have different historical and cultural backgrounds and social systems, President Xi Jinping said.

China Railway Signal & Communication Co, the country's railway control systems provider, is expected to put its first driverless subway into trial operation next year, Zhang Zhihui, chief engineer of the company, said at a meeting on Wednesday.

China Poly Group Corp announced on Monday that it will transfer its coal business－Poly Energy Holdings Ltd－to China National Coal Group Corp, also known as Chinacoal, which is the second time that Chinacoal has consolidated coal assets.

China and the United States should enhance communication and coordination to this end, he said.

China and Cambodia have maintained high mutual political trust, benefited mutually from their economic ties and coordinated closely in international affairs, Xi said, adding that China is willing to make joint efforts for greater bilateral achievements to benefit both peoples.