It was the first stone quarry site handed over to SMCL, earmarked for Kholongchhu Hydro Electric Limited (KHEL). It is located in Dzongthong in Bartsham Gewog, Trashigang Dzongkhag. In the larger interest of the KHEL project, the community forest was taken over as quarry and the community compensated. It is for extraction of quartzite boulders to supply aggregate and crushed sand to KHEL. A 200 TPH three stage stone crusher was set up to produce aggregate and sand. The three stage crushing plant was set up to produce quality aggregates required for hydropower project construction works. Following are other information on the quarry.
Type of mineral mined : Quartzite (boulder)
Grade : Suitable for non-wearing use
Ave. production capacity : 200,000 MT/annum
Leasehold area : 37.598 acres
Lease period : 4th April, 2017 to 3rd April, 2027 (10 years)