TDK Corporation October 31, 2011 Contact; TDK Corporation(Tokyo) Corporate Communications Department Tatsuhiko Atsumi +81(3)5201-7102 Consolidated results (U.S. GAAP) for the 2nd quarter of FY March 2012 Summary (April 1, 2011 - September 30, 2011) Term Item Net sales Operating income Income before income taxes Net income attributable to TDK Per common share : Net income attributable to TDK / Basic Net income attributable to TDK / Diluted Capital expenditures Depreciation and amortization Research and development Result of financial income (loss) Ratio of overseas production Number of employees 1H of FY2011 1H of FY2012 Change (April 1, 2010 - Sep. 30, 2010) (April 1, 2011 - September 30, 2011) (Yen millions) (Yen millions) % % (U.S.$ thousands) (Yen millions) Change(%) 442,234 100.0 417,157 100.0 5,417,623 (25,077) -5.7 179,117 (23,396) 37,188 8.4 13,792 3.3 -62.9 34,644 7.8 10,681 2.6 138,714 (23,963) -69.2 5.9 6,719 1.6 87,260 (19,397) -74.3 26,116 Yen 202.46 Yen 52.09 U.S.$ 0.68 Yen 202.28 Yen 52.03 U.S.$ 0.68 33,817 37,764 26,379 (750) 84.7% 84,399 8.5 6.0 - 53,548 37,344 26,426 (705) 81.6% 88,449 695,429 484,987 343,195 (9,156) - 9.0 6.3 - 19,731 (420) 47 45 58.3 -1.1 0.2 - 2nd quarter consolidated results (July 1, 2011 - September 30, 2011) Term Item Net sales Operating income Income before income taxes Net income attributable to TDK Per common share : Net income attributable to TDK / Basic Net income attributable to TDK / Diluted Capital expenditures Depreciation and amortization Research and development Result of financial income (loss) Ratio of overseas production 2Q of FY2011 2Q of FY2012 Change (July 1, 2010 - Sep. 30, 2010) (July 1, 2011 - September 30, 2011) (Yen millions) (Yen millions) % % (U.S.$ thousands) (Yen millions) Change(%) (9,923) 220,309 100.0 210,386 100.0 2,732,286 -4.5 7.7 8,149 3.9 105,831 (8,830) -52.0 16,979 15,826 7.2 7,359 3.5 95,571 (8,467) -53.5 2.0 5.3 4,296 55,792 (7,297) -62.9 11,593 Yen 89.87 Yen 33.30 U.S.$ 0.43 Yen 89.78 Yen 33.26 U.S.$ 0.43 19,957 18,975 13,596 (453) 84.8% Note: U.S.$1=Yen 77, for convenience only. 8.6 6.2 - 26,762 18,673 12,854 (298) 80.7% 8.9 6.1 - 347,558 242,506 166,935 (3,870) - 6,805 (302) (742) 155 34.1 -1.6 -5.5 -