Recently, the supply of raw salt market in Shandong is tight. The local supply is mainly divided into sea salt and well mineral salt, and the market supply and demand is active. Raw salt is mainly used in two alkali industries, and some small industrial salts are sent to printing and dyeing, medicine, water purification, food processing and other industries. At present, sea salt is in the autumn grilling stage, and the market supply increases. The power and production of well and mineral salt are limited, and the factory inventory is tight. With the increase of raw salt cost, cautious market supply and demand, the supply and demand of sea salt factory accelerated, and the focus of transaction range moved upward. Some units of well mineral salt plant are suspended, the market supply is tight, and the spot is mainly delivered under contract.