Business Ciech invests in Zachem 10 April 2006 Ciech has started production of EPI, a substance used in the production of epoxy resin, at the company at its own cost. It is planning to invest in total about zł.550 million in Zachem.(Poland A.M.) More from Business All Yesterday 88.3% of Poles choose products from promotional flyers when shopping 2 days ago Poland prepares major highway upgrades as congestion grows 2 days ago Paid DataWalk secures U.S. patent protection for AI technology