TDK Corporation October 31, 2007 Contact; TDK Corporation(Tokyo) Corporate Communications Department +81(3)5201-7102 Michinori Katayama Consolidated results (U.S. GAAP) for the 1st Half of FY March 2008 Summary (April 1, 2007 - September 30, 2007) Term Item Net sales Operating income Income before income taxes Net income Total assets Total stockholders' equity Per common share: Net income / Basic Net income / Diluted Stockholders' equity Capital expenditures Depreciation and amortization Research and development Result of financial income Ratio of overseas production Number of employees Average rate for the period US$=Yen Euro=Yen The first half of FY2007 (April 1, 2006 - Sep. 30, 2006) (Yen millions) % The first half of FY2008 (April 1, 2007 - Sep. 30, 2007) (Yen millions) Change % (U.S.$ thousands) (Yen millions) Change(%) 100.0 3,765,983 8,250 1.9 10.9 409,957 23.2 8,881 424,838 38,264 100.0 9.0 433,088 47,145 41,329 9.7 48,362 11.2 420,539 7,033 17.0 29,622 7.0 34,626 8.0 301,096 5,004 16.9 8,588,696 6,468,852 28,288 18,761 959,412 725,157 - 987,700 743,918 Yen 223.89 Yen 223.66 Yen 5,479.51 35,980 30,884 23,780 2,919 63.6% 53,975 - Yen 266.16 Yen 265.81 Yen 5,768.87 7.3 5.6 - 38,242 33,112 27,051 4,673 68.5% 58,170 Yen 115.38 Yen 146.01 - 7.6 6.2 - U.S.$ 2.31 U.S.$ 2.31 U.S.$ 50.16 332,539 287,930 235,226 40,635 - 2,262 2,228 3,271 1,754 6.3 7.2 13.8 60.1 Yen 119.40 Yen 162.33 (Sales breakdown) Term Product Electronic materials and components Electronic materials Electronic devices Recording devices Other electronic components Recording media Total sales Overseas sales Note: The first half of FY2007 (April 1, 2006 - Sep. 30, 2006) (Yen millions) % The first half of FY2008 (April 1, 2007 - Sep. 30, 2007) (Yen millions) % Change (U.S.$ thousands) (Yen millions) Change(%) 376,707 88.7 398,421 92.0 3,464,531 21,714 5.8 98,713 96,582 154,055 23.2 22.7 36.3 102,766 104,436 156,920 23.7 24.1 36.3 893,618 908,139 1,364,522 4,053 7,854 2,865 4.1 8.1 1.9 27,357 6.5 34,299 7.9 298,252 6,942 25.4 48,131 424,838 341,901 11.3 100.0 80.5 34,667 433,088 356,821 8.0 100.0 82.4 301,452 3,765,983 3,102,791 (13,464) 8,250 14,920 -28.0 1.9 4.4 U.S.$1=Yen 115, for convenience only. 1 TDK Corporation October 31, 2007 2nd quarter Consolidated results (July 1, 2007 - September 30, 2007) Term Item Net sales Operating income Income before income taxes Net income Per common share: Net income / Basic Net income / Diluted The 2nd quarter of FY2007 (July 1, 2006 - Sep. 30, 2006) (Yen millions) % The 2nd quarter of FY2008 (July 1, 2007 - Sep. 30, 2007) (Yen millions) Change % (U.S.$ thousands) (Yen millions) Change(%) 100.0 1,968,600 5,191 2.3 13.7 269,704 53.2 10,767 221,198 20,249 100.0 9.2 226,389 31,016 23,380 10.6 28,181 12.4 245,052 4,801 20.5 16,346 7.4 18,604 8.2 161,774 2,258 13.8 Yen 123.53 Yen 123.41 Yen 144.09 Yen 143.91 U.S.$ 1.25 U.S.$ 1.25 (Sales breakdown) Term Product Electronic materials and components Electronic materials Electronic devices Recording devices Other electronic components Recording media Total sales Overseas sales Note: The 2nd quarter of FY2007 (July 1, 2006 - Sep. 30, 2006) (Yen millions) % The 2nd quarter of FY2008 (July 1, 2007 - Sep. 30, 2007) (Yen millions) % Change (U.S.$ thousands) (Yen millions) Change(%) 196,576 88.9 212,975 94.1 1,851,957 16,399 8.3 51,047 50,231 80,267 23.1 22.7 36.3 53,063 54,455 86,504 23.4 24.1 38.2 461,417 473,522 752,209 2,016 4,224 6,237 3.9 8.4 7.8 15,031 6.8 18,953 8.4 164,809 3,922 26.1 24,622 221,198 179,242 11.1 100.0 81.0 13,414 226,389 189,065 5.9 100.0 83.5 116,643 1,968,600 1,644,043 (11,208) 5,191 9,823 -45.5 2.3 5.5 U.S.$1=Yen 115, for convenience only. 2