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Unimin Corporation
Type Private
Industry Industrial Minerals & Mining
Founded New Canaan, Connecticut
Headquarters New Canaan, Connecticut, USA
Key people Kevin F. Crawford, CEO; Luke C. Anderson, President; Joseph C. Shapiro, COO
Website http://www.unimin.com, http://www.uniminsustainability.com

Unimin Corporation: A wholly owned subsidiary of global industrial minerals company SCR-Sibelco of Belgium. Unimin operates 44 mining and mineral processing facilities in the United States, Mexico and Canada. In Mexico, the Company operates as Grupo Materias Primas de México and in Canada as Unimin Canada Ltd/Ltee. Executive offices are located in New Canaan, Connecticut with technology, analytical and sales service centers situated throughout North America. Unimin has over 2,400 employees located in 19 states in the U.S., Canada and Mexico.

Founded in 1970, Unimin is one of North America’s largest producers of non-metallic industrial minerals. Unimin is the world’s leading producer of quartz proppants (frac sand)and a major producer of resin coated sand proppants for oil and natural gas stimulation and recovery, and the largest producer of low-iron nepheline syenite for glass, ceramic, paint and plastic applications. The Company is 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’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.

Unimin has been recognized for its exemplary safety and health record with the prestigious Sentinels of Safety award by the U.S. Mine Safety and Health Administration (MSHA) and the National Mining Association (NMA). The Company is also recognized by the Wildlife Habitat Council for outstanding environmental stewardship and employee volunteerism with the prestigious Corporate Habitat of the Year award, and Community Partner of the Year and Signatures of Sustainability awards.

Unimin Corporation is certified as a sustainable company by the Global Reporting Initiative (GRI), the world’s most widely used sustainability reporting framework. The GRI establishes standardized guidelines and certifies responsible business and operating practices in the four major areas of sustainability; Economic, Environmental, Social and Governance. The complete report “Value Beyond Mining” can be found at http://www.uniminsustainability.com.

Air Quality Impacts of Unimin Ltd. on Kasshabog Lake[edit]

February, 2013 the Ministry of the Environment released a report prepared by Air Scientist Michael Ladouceur. The Summary & Conclusions on page 43 of the report state: Multiple lines of evidence demonstrate that the operations at Unimin's Blue Mountain and Nephton sites have resulted in discharges of contaminants to the mantural environment resulting in violations of the genera provisions of the EPA and regulations made under it.

  • Discharges of particulate and dust that may cause adverse effect contrary to S!4(1) of the APA including possible human health effects.
  • Discharges of particulate and dust that may cause adverse effect conracty to S45 of the Ontario Regulation 419/05
  • Discharges of particulate and dust that result in a violation of the Schedule 2 standard for Dustfall contained in Ontario Regulation 419/05.
  • The peak concentrations observed may pose an unusual health hazard not contemplated in the "soling" rationale of the TSP schedules of Regulation 419/05.

High excursion values of particulates require assessment by medical professionals to determine potential health effects. These impacts are of an ongoing nature despite mitigation attempts. Justification exists for Ministry of the Environment intervention directed to the reduction of air quality impacts upon the study area" [1]

The Medical Officer of Health of Peterborough County released a public health advisory notice in August, 2012.[2]


  1. ^ Report of a Provincial Officer, Air Quality Impacts of Unimin Ltd. On Kasshabog Lake near the Town of Havelock, February 15, 3013, Michael Ladouceur, Air Scientist, Ministry of the Environment, Government of Ontario.
  2. ^ To the Residents of Bottle Lake and Kasshabog Lake, Peterborough County, City Health Unit, updated September 4, 2012, www.pcchuc.ca

External links[edit]