People visit the 2026 China Mining Conference and Exhibition in north China's Tianjin Municipality, Sept. 10, 2026. (Xinhua/Li Ran)

People visit the 2026 China Mining Conference and Exhibition in north China's Tianjin Municipality, Sept. 10, 2026. (Xinhua/Sun Fanyue)

People visit the 2026 China Mining Conference and Exhibition in north China's Tianjin Municipality, Sept. 10, 2026. (Xinhua/Sun Fanyue)

People visit the 2026 China Mining Conference and Exhibition in north China's Tianjin Municipality, Sept. 10, 2026. (Xinhua/Sun Fanyue)

People visit the 2026 China Mining Conference and Exhibition in north China's Tianjin Municipality, Sept. 10, 2026. (Xinhua/Sun Fanyue)

People visit the 2026 China Mining Conference and Exhibition in north China's Tianjin Municipality, Sept. 10, 2026. (Xinhua/Li Ran)

Guests chat at the 2026 China Mining Conference and Exhibition in north China's Tianjin Municipality, Sept. 10, 2026. (Xinhua/Sun Fanyue)

A robot dog for mine inspection is displayed at the 2026 China Mining Conference and Exhibition in north China's Tianjin Municipality, Sept. 10, 2026. (Xinhua/Sun Fanyue)

This photo taken on Sept. 10, 2026 shows the Ministerial Forum on International Mining Cooperation and the opening ceremony of the 2026 China Mining Conference and Exhibition in north China's Tianjin Municipality. (Xinhua/Li Ran)