Zibo Linzi Hongda Mining Co., Ltd. is the first private mining enterprise in Zibo. It was built and put into operation in 1995. Its main business scope is underground mining and ore dressing of iron ore. The mining method is underground mining, and the production scale of the mine is 420,000 tons/year. The company is equipped with iron ore mining workshop, ore dressing workshop with annual processing capacity of 1 million tons of raw ore and underground transportation system. The company earnestly practices General Secretary Xi Jinping's ecological concept of "clear water and green mountains are golden mountains and silver mountains", and strives to promote the construction of green mines. It has invested a lot of money in the environmental construction of the mining area and its surrounding areas. It has achieved remarkable results in the construction of enterprise and land harmony, energy conservation and emission reduction and digital mine construction.