Aerial photo taken on Oct. 28, 2020 shows a view of Suifenhe Railway Port in Suifenhe, northeast China's Heilongjiang Province. As of Tuesday, the 2020 import and export volume of the Suifenhe Railway Port, an important Chinese port for trade with Russia, hit 8.009 million tons, of which mineral powder imports increased by 64 percent year on year. (Photo by Zhang Tao/Xinhua)

A worker works at Suifenhe Railway Port in Suifenhe, northeast China's Heilongjiang Province, Oct. 28, 2020. As of Tuesday, the 2020 import and export volume of the Suifenhe Railway Port, an important Chinese port for trade with Russia, hit 8.009 million tons, of which mineral powder imports increased by 64 percent year on year. (Photo by Zhang Tao/Xinhua)

A container is lifted by a gantry crane at Suifenhe Railway Port in Suifenhe, northeast China's Heilongjiang Province, Oct. 28, 2020. As of Tuesday, the 2020 import and export volume of the Suifenhe Railway Port, an important Chinese port for trade with Russia, hit 8.009 million tons, of which mineral powder imports increased by 64 percent year on year. (Photo by Zhang Tao/Xinhua)

Aerial photo taken on Oct. 28, 2020 shows a view of Suifenhe Railway Port in Suifenhe, northeast China's Heilongjiang Province. As of Tuesday, the 2020 import and export volume of the Suifenhe Railway Port, an important Chinese port for trade with Russia, hit 8.009 million tons, of which mineral powder imports increased by 64 percent year on year. (Photo by Zhang Tao/Xinhua)

A gantry crane is operated at Suifenhe Railway Port in Suifenhe, northeast China's Heilongjiang Province, Oct. 28, 2020. As of Tuesday, the 2020 import and export volume of the Suifenhe Railway Port, an important Chinese port for trade with Russia, hit 8.009 million tons, of which mineral powder imports increased by 64 percent year on year. (Photo by Zhang Tao/Xinhua)