H.I.G. Capital has recapitalized Harrison Gypsum, a Norman, OK-based miner and processor of gypsum, anhydrite and plaster products. The company's products are used in a diverse set of end markets, including building products, energy, infrastructure, agriculture, food and pharmaceuticals. Harrison operates 10 mines, centrally located in Oklahoma and Texas with over 350 million tons of gypsum, and two production facilities in Oklahoma. The added capital from H.I.G. will help enhance Harrison's product offering and service capabilities.