BRUSSELS (Reuters) – The European Commission has approved the proposed $11 billion acquisition of Dupont’s mobility and materials business by U.S. chemicals company Celanese Corp, on the condition that the latter divests a plastics-producing business. Celanese announced the deal in February but had to offer remedies to address EU antitrust concerns. The combined entity would have been the largest producer of thermoplastic copolyester (TPC) in the European Economic Area and globally, with only a few alternative suppliers remaining. The product is primarily used by automakers. The EU approval is…