Orient Abrasives has informed the stock exchanges that it has received clearance from the Ministry of Environment, Forests and Climate Change, for enhancement of bauxite production capacity at the Kothariya bauxite mine and the Nandana I bauxite mine at Kalyanpur, Jamnagar, as well as the Avariyar II bauxite mine at Mevasa, Jamnagar. The Orient Abrasives stock could react positively to the development on Monday.