Celanese increases share repurchase authorization to $400M Celanese announced that the company’s board of directors increased its share repurchase authorization to $400M. As of December 31, 2013, the company had $228M remaining under its previous authorizations. The authorization gives management discretion in determining the timing and conditions under which shares may be repurchased. "Increasing our share repurchase authorization reflects the confidence we have in our business and its ability to generate strong cash flow," said Mark Rohr, chairman and CEO. "With this authorization, we will continue to pursue our balanced cash deployment strategy, including opportunistic share repurchases, which we expect will drive increased shareholder value."