Fairmount Santrol and Unimin Corporation, a wholly owned subsidiary of SCRSibelco NV jointly announced that the Boards of Directors of both companies have approved a definitive agreement under which Fairmount and Unimin will combine in a tax-free, cash and stock transaction.   The new company, which will list on the New York Stock Exchange, will combine the two organizations’ strong product portfolios and asset footprints to create an industry-leading proppant and industrial materials solution...