TDK Corporation Consolidated 1Q of FY March 2010(U.S. GAAP) 10) Supplementary Information (Consolidated) Exchange rates used for conversion Term Item The end of the period As of June 30, 2008 US$=Yen Euro=Yen 106.42 168.07 As of June 30, 2009 US$=Yen Euro=Yen 96.01 135.53 As of March 31, 2009 US$=Yen Euro=Yen 98.23 129.84 Sales breakdown Term April 1, 2008 June 30, 2008 Amount Ratio to April 1, 2009 June 30, 2009 Amount Amount Ratio to Change (Yen millions) sales (%) (Yen millions) sales (%) (U.S.$ thousands) Product 24.0 15.7 Electronic materials 45,671 28,469 296,552 25.5 18.7 353,979 33,982 48,675 Electronic devices 38.0 34.5 72,445 62,550 651,563 Recording devices 12.5 31.1 23,832 56,545 589,010 Others 100.0 100.0 190,623 181,546 1,891,104 Total sales 83.0 87.3 1,651,135 158,158 158,509 Overseas sales Notes: 1. Recording media results are now included in the “Others” sector. 2. U.S.$1=Yen 96, for convenience only. (Yen millions) Change(%) (17,202) (14,693) (9,895) 32,713 (9,077) 351 -37.7 -30.2 -13.7 137.3 -4.8 0.2 Overseas sales by division Term April 1, 2008 June 30, 2008 Ratio to Amount (Yen millions) sales (%) 17.8 33,899 17.7 33,645 71,860 37.7 9.8 18,754 83.0 158,158 April 1, 2009 June 30, 2009 Ratio to Amount (Yen millions) sales (%) 11.7 21,236 22,780 12.5 34.2 62,078 52,415 28.9 87.3 158,509 Product Electronic materials Electronic devices Recording devices Others Overseas sales Note: Recording media results are now included in the “Others” sector. Change (Yen millions) Change(%) (12,663) (10,865) (9,782) 33,661 351 Company group As of June 30, 2009, TDK had 132 subsidiaries (19 in Japan and 113 overseas). TDK also had 8 affiliates (4 in Japan and 4 overseas) whose financial statements are accounted for by the equity method. 12 -37.4 -32.3 -13.6 179.5 0.2