Aerial photo taken on April 15, 2019 shows the Beilun II bridge on the border of China and Vietnam. Guangxi has played an increasingly important role under the Belt and Road Initiative. (Photos: Xinhua)

Aerial photo taken on April 10, 2019 shows a non-ferrous metal company in Fangchenggang City, south China's Guangxi Zhuang Autonomous Region. Guangxi has played an increasingly important role under the Belt and Road Initiative.

Photo taken on April 10, 2019 shows a train passing on the railway of Fangchenggang port, south China's Guangxi Zhuang Autonomous Region. Guangxi has played an increasingly important role under the Belt and Road Initiative.

Aerial photo taken on April 11, 2019 shows the main project construction of a wharf in Fangchenggang, south China's Guangxi Zhuang Autonomous Region. Guangxi has played an increasingly important role under the Belt and Road Initiative.

Aerial photo taken on April 10, 2019 shows a metallurgy company in Fangchenggang City, south China's Guangxi Zhuang Autonomous Region. Guangxi has played an increasingly important role under the Belt and Road Initiative.

Aerial photo taken on April 11, 2019 shows a container wharf at Qinzhou port in south China's Guangxi Zhuang Autonomous Region. Guangxi has played an increasingly important role under the Belt and Road Initiative.

Aerial photo taken on April 11, 2019 shows a container wharf at Qinzhou port in south China's Guangxi Zhuang Autonomous Region. Guangxi has played an increasingly important role under the Belt and Road Initiative.

Photo taken on April 11, 2019 shows a cargo ship in Qinzhou Port, south China's Guangxi Zhuang Autonomous Region. Guangxi has played an increasingly important role under the Belt and Road Initiative.

Aerial photo taken on April 17, 2019 shows the Pingxiang (railway) port in south China's Guangxi Zhuang Autonomous Region. Guangxi has played an increasingly important role under the Belt and Road Initiative.