Aerial photo taken on July 23, 2019 shows the Tesla's Shanghai gigafactory in east China's Shanghai. The factory will have an annual producing capacity of 500,000 electric cars when completed. (Photos: Xinhua/Ding Ting)

Aerial photo taken on July 23, 2019 shows the Tesla's Shanghai gigafactory in east China's Shanghai. The factory will have an annual producing capacity of 500,000 electric cars when completed.

Aerial photo taken on July 23, 2019 shows the Tesla's Shanghai gigafactory in east China's Shanghai. The factory will have an annual producing capacity of 500,000 electric cars when completed.

Aerial photo taken on July 23, 2019 shows the Tesla's Shanghai gigafactory in east China's Shanghai. The factory will have an annual producing capacity of 500,000 electric cars when completed.

Combo photo shows an aerial view of the Tesla's Shanghai gigafactory which is still being built in east China's Shanghai, April 3, 2019 (above), and the gigafactory on July 23, 2019 (below). The factory will have an annual producing capacity of 500,000 electric cars when completed.

Combo photo shows an aerial view of the Tesla's Shanghai gigafactory which is still being built in east China's Shanghai, April 3, 2019 (above), and the gigafactory on July 23, 2019 (below). The factory will have an annual producing capacity of 500,000 electric cars when completed.