Westlake (WLK) to Buy Hexion’s Epoxy Business for $1.2 Billion Posted byZacks Equity Research November 30, 2021 Leave a comment on Westlake (WLK) to Buy Hexion’s Epoxy Business for $1.2 Billion Westlake (WLK) agrees to acquire Hexion’s Rotterdam-based epoxy business to integrate and expand its portfolios.