 Unimin’s product portfolio includes industrial sand, high purity quartz, feldspar, nepheline syenite, microcrystalline silica, ball clay, kaolin, calcium carbonate and calcium quicklime and hydrate.Quicklime and hydrated lime products are produced and sold by their Southern Lime subsidiary.Unimin serves a diversified customer base with technical requirements that range from high temperature foundry and metallurgical applications, functional performance in paint, plastics and rubber manufacture, chemical reactivity in water filtration and environmental engineering, and high purity in consumer products and food processing.