Unimin Corporation

Unimin Corporation is an application-focused company drawing from a diversified product portfolio and the worldwide production capabilities of Sibelco, our privately held parent organization. We are the world’s largest producer of low-iron nepheline syenite used in glass, ceramic, paint and plastics, and the largest producer of quartz proppants for oil and natural gas stimulation and recovery. We are also the world’s leading producer of high purity quartz, a highly specialized product used in the fabrication of integrated circuits, solar photovoltaic cells, and high-intensity lighting. Unimin processing plants are situated on the continent’s best mineral deposits; each a multi-million dollar investment in chemical consistency, product uniformity and reliable supply. Regional offices, technical centers, and analytical laboratories are organized to support production and commercial activities and serve as customer resource centers.