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It has been reported that Shandong Province has uncovered a significant rock salt deposit in the Dawenkou Basin of Tai’an City, containing an estimated 596 million tons of reserves. A review panel organized by the Ministry of Land and Resources’ Reserve Review Center recently approved the "Rock Salt Supplementary Exploration Report" for the Mazhuang Ore Section of the Dawenkou Basin, submitted by the Fifth Geology and Mineral Exploration Department of the Shandong Provincial Bureau of Geology and Mineral Resources.
Xinwen Mining Group Co., Ltd., which has consolidated several large chemical enterprises and possesses strong resource advantages, plans to leverage this discovery to establish a chemical project in the Dawenkou area. The proposed facility is expected to produce 100,000 tons of polyvinyl chloride (PVC) and 100,000 tons of caustic soda annually.
Rock salt, also known as stone salt, is primarily composed of sodium chloride. Since the 1970s, geological surveys conducted by provincial mining agencies have revealed abundant rock salt deposits in the northwestern part of the Dawenkou Basin, covering an area of 36.44 square kilometers. This latest exploration has identified 7.5 billion tons of potential resources, making it one of the largest rock salt deposits in the country. In addition, the project has also uncovered 389.775 million tons of associated mineral resources and 23 million tons of natural sulfur.
With a recovery rate of 25%, this mine could support a chemical plant producing 450,000 tons of sodium chloride annually for over 330 years, highlighting its vast development potential. The discovery marks a major milestone for the region’s mineral and chemical industries, offering long-term economic benefits and strategic importance for future industrial planning.
October 01, 2025