An aerial drone photo taken on Sept. 1, 2026 shows a salt farm in harvest season in Tangshan City, north China's Hebei Province. (Photo by Li Lei/Xinhua)

People work at a salt farm in Tangshan City, north China's Hebei Province, Sept. 1, 2026. (Photo by Li Lei/Xinhua)

People work at a salt farm in Tangshan City, north China's Hebei Province, Sept. 1, 2026. (Photo by Li Lei/Xinhua)

A worker harvests salt at a salt farm in Tangshan City, north China's Hebei Province, Sept. 1, 2026. (Photo by Li Lei/Xinhua)