TDK Corporation 1-13-1, Nihonbashi Chuo-ku, Tokyo 103-8272 Japan Contacts; TDK Corporation(Tokyo) Corporate Communications Department +81(3)5201-7102 Michinori Katayama TDK U.S.A. Corporation Francis J. Sweeney +1(516)535-2600 TDK Marketing Europe GmbH Marco Donadoni +49(2102)4870 FOR IMMEDIATE RELEASE TOKYO - October 30, 2006 TDK Corporation today announced its Consolidated business results prepared in conformity with U.S. generally accepted accounting principles (the "U.S. GAAP") for the first half of fiscal year ("FY") 2007 and the 2nd quarter ("Qtr."), and Non-Consolidated business results for the first half of FY 2007. I. Consolidated I-1) Summary Consolidated results (April 1, 2006 - September 30, 2006) Term Item Net sales Operating income Income from continuing operations before income taxes Income from continuing operations Net income Per common share: Net income / Basic Net income / Diluted The first half of FY2007 The first half of FY2006 Change (April 1, 2005 - Sep. 30, 2005) (April 1, 2006 - Sep. 30, 2006) (Yen millions) % (U.S.$ thousands) (Yen millions) % (Yen millions) Change(%) 424,838 38,264 100.0 9.0 3,600,322 324,271 350,387 28,050 100.0 8.0 74,451 10,214 21.2 36.4 41,329 9.7 350,246 31,598 9.0 9,731 30.8 29,622 7.0 251,034 21,650 6.2 7,972 36.8 29,622 7.0 251,034 21,666 6.2 7,956 36.7 Yen 223.89 Yen 223.66 U.S.$ 1.90 U.S.$ 1.90 Yen 163.84 Yen 163.73 (Sales breakdown) Term Product Electronic materials and components Electronic materials Electronic devices Recording devices Other electronic components Recording media Total sales Overseas sales The first half of FY2007 The first half of FY2006 Change (April 1, 2005 - Sep. 30, 2005) (April 1, 2006 - Sep. 30, 2006) (U.S.$ thousands) (Yen millions) (Yen millions) % % (Yen millions) Change(%) 376,707 88.7 3,192,432 300,720 85.8 75,987 25.3 98,713 96,582 154,055 23.2 22.7 36.3 836,551 818,491 1,305,551 86,089 60,952 140,288 24.6 17.4 40.0 12,624 35,630 13,767 14.7 58.5 9.8 27,357 6.5 231,839 13,391 3.8 13,966 104.3 48,131 424,838 341,901 11.3 100.0 80.5 407,890 3,600,322 2,897,466 49,667 350,387 264,305 14.2 100.0 75.4 (1,536) 74,451 77,596 -3.1 21.2 29.4 Note: U.S.$1 = Yen 118, for convenience only. 1 Consolidated 2nd Qtr. Consolidated results Consolidated results (July 1, 2006 - September 30, 2006) Term Item Net sales Operating income Income from continuing operations before income taxes Income from continuing operations Net income Per common share: Net income / Basic Net income / Diluted The 2nd Qtr. of FY2007 The 2nd Qtr. of FY2006 Change (July 1, 2005 - Sep. 30, 2005) (July 1, 2006 - Sep. 30, 2006) (Yen millions) % (U.S.$ thousands) (Yen millions) % (Yen millions) Change(%) 221,198 20,249 100.0 9.2 1,874,559 171,602 182,965 15,161 100.0 8.3 38,233 5,088 20.9 33.6 23,380 10.6 198,136 17,323 9.5 6,057 35.0 16,346 7.4 138,525 10,963 6.0 5,383 49.1 16,346 7.4 138,525 10,792 5.9 5,554 51.5 Yen 123.53 Yen 123.41 U.S.$ 1.05 U.S.$ 1.05 Yen 81.62 Yen 81.55 (Sales breakdown) Term Product Electronic materials and components Electronic materials Electronic devices Recording devices Other electronic components Recording media Total sales Overseas sales The 2nd Qtr. of FY2007 The 2nd Qtr. of FY2006 Change (July 1, 2005 - Sep. 30, 2005) (July 1, 2006 - Sep. 30, 2006) (Yen millions) % (U.S.$ thousands) (Yen millions) % (Yen millions) Change(%) 196,576 88.9 1,665,898 157,392 86.0 39,184 24.9 51,047 50,231 80,267 23.1 22.7 36.3 432,602 425,686 680,229 45,042 32,265 71,824 24.6 17.6 39.3 6,005 17,966 8,443 13.3 55.7 11.8 15,031 6.8 127,381 8,261 4.5 6,770 82.0 24,622 221,198 179,242 11.1 100.0 81.0 208,661 1,874,559 1,519,000 25,573 182,965 140,996 14.0 100.0 77.1 (951) 38,233 38,246 -3.7 20.9 27.1 Note: U.S.$1 = Yen 118, for convenience only. 2