Exhibit 11. Computation of Net Income (Loss) Per Share. TRANSTECH INDUSTRIES, INC. COMPUTATION OF NET INCOME (LOSS) PER COMMON SHARE For the Nine Months Ended September 30, BASIC: 2002 2001 Weighted Average Common Shares Outstanding 2,979,190 2,931,937 Net Income (Loss) $3,777,000 $ (665,000) Basic Net Income (Loss) Per Common Share: Net Income (Loss) per share $1.27 $(.23) DILUTED: Weighted Average Common Shares Outstanding 2,979,190 2,931,937 Dilutive Stock Options Based Upon the Treasury Stock Method - - 2,979,190 2,931,937 Net Income (Loss) $3,777,000 $ (665,000) Diluted Net Income (Loss) Per Common Share: Net Income (Loss) Per Share $1.27 $(.23) For the Three Months Ended September 30, BASIC: 2002 2001 Weighted Average Common Shares Outstanding 2,979,190 2,979,190 Net Income (Loss) $ (185,000) $ (151,000) Basic Net Income (Loss) Per Common Share: Net Income (Loss) per share $(.06) $(.05) DILUTED: Weighted Average Common Shares Outstanding 2,979,190 2,979,190 Dilutive Stock Options Based Upon the Treasury Stock Method - - 2,979,190 2,979,190 Net Income (Loss) $ (185,000) $ (151,000) Diluted Net Income (Loss) Per Common Share: Net Income (Loss) Per Share $(.06) $(.05)