dar-tech expands Tolsa’s representation into Western Great Lakes

December 20, 2019 Dear Valued Customer, As a long-standing distributor of chemical raw materials, dar-tech is pleased to announce our exclusive representation and expansion of Tolsa Group into the Western Great Lakes region of the United States, effective Jan. 7, 2020. This expansion comprises Tolsa’s portfolio of organo clay-based rheological additives, including the Pangel line …

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