CLEVELAND (Aug. 30)—Shareholders of M.A. Hanna Co. and Geon Co. approved the consolidation of their companies into a new firm, PolyOne Corp. The vote is the final step before the formation of PolyOne, which will be traded on the New York Stock Exchange under the ticker symbol POL, as of Sept. 1. Hanna and Geon shares will cease of the close of business Aug. 31. PolyOne will be a $3.5 billion polymer services company.