Limestone is a source of lime (calcium oxide), which is used in steel manufacturing, mining, paper production, water treatment and purification, and plastic production  Limestone is extensively used in agriculture, Cement and the glass industry.
Although some limestone layers developed in freshwater lakes, rivers, and even on dry land, most limestone layers were created from marine debris that was dumped on ocean bottoms. Attock District, Rawalpindi, Jhelum, Chakwal, Khushab, and Mianwali all have large amounts of limestone resources.
As a vital element in the production of cement, and contructions BM General Order Suppliers Pvt Ltd, the renowned group in the mineral production and trading industry, is also engaged in leasing limestone mines and extraction of limestones and also provides limestone to various cement companies as well as to different construction companies and contractors for road construction process in Pakistan as needed with the purpose of expanding its clientele to other sectors.