Aerial photo taken on Sept. 27, 2022 shows employees working at the Changlu Daqinghe saltworks in Tangshan, north China's Hebei Province. (Photo by Liu Mancang/Xinhua)

Aerial photo taken on Sept. 27, 2022 shows salt harvested at the Changlu Daqinghe saltworks in Tangshan, north China's Hebei Province. (Photo by Liu Mancang/Xinhua)

Aerial photo taken on Sept. 27, 2022 shows employees working at the Changlu Daqinghe saltworks in Tangshan, north China's Hebei Province. (Photo by Liu Mancang/Xinhua)

Aerial photo taken on Sept. 27, 2022 shows employees working at the Changlu Daqinghe saltworks in Tangshan, north China's Hebei Province. (Photo by Liu Mancang/Xinhua)

Editor: Song Lifang