Fifty to seventy percent. At present, the ex-factory price of Laoshan mineral water 18.9L purified water in the market is around 3 yuan, and the price sold to the public is between 6 and 8 yuan, with a profit of 50% to 70%. Qingdao Laoshan Mineral Water Co., Ltd. is a large national enterprise specializing in the production and sale of Laoshan brand series drinking water, and also the birthplace of the first bottle of natural mineral water in China.