December 29, 2014 – Unimin Specialty Minerals Inc. of New Canaan, CT will raise prices for all MINEX, IMSIL, SNOBRITE, and MINBLOC brand functional filler products effective February 1, 2015. Price increases will range from 3 per cent to 6 per cent depending on grade. The company says the increase is necessary to offset rising production costs, critical support and continual reinvestment.