1 / 3   A group of salt field photos were taken by drone on Monday as workers harvested spring salt at the Tangshan Seaport Economic Development Zone in Changlu Salt District near northern China’s Hebei Province and Tianjin City. /Xinhua’s Photo

2 / 3   Spring salt production at Changlu Salt Fields is expected to reach 270,000 tons this year. /Xinhua’s Photo

3 / 3   Changlu is one of the sea salt production bases in China. Its products are sold locally and abroad. /Xinhua Photo