TDK Corporation Consolidated 1H of FY March 2008(U.S. GAAP) I-8) Segment Information The following industry and geographic segment information are required by the Japanese Financial Instruments Exchange Law. 1. Industry segment information Term 1H of FY2007 (April 1, 2006 Sep. 30, 2006) (Yen millions) % 1H of FY2008 (April 1, 2007 - September 30, 2007) Change FY2007 (April 1, 2006 March 31, 2007) (Yen millions) % (Yen millions) (U.S.$ thousands) (Yen millions) Change(%) Product % Electronic materials and components 3,464,531 21,714 758,821 100.0 376,707 100.0 398,421 100.0 5.8 Net sales 758,821 3,464,531 21,714 376,707 398,421 5.8 External sales Intersegment 677,046 89.2 89.2 3,151,139 26,241 336,140 362,381 91.0 7.8 Operating expenses 81,775 10.8 9.0 10.8 313,392 40,567 (4,527) -11.2 36,040 Operating income Recording media 103,204 100.0 301,452 (13,464) -28.0 48,131 100.0 34,667 100.0 Net sales 48,131 103,204 34,667 301,452 (13,464) -28.0 External sales Intersegment 50,434 104.8 105,389 102.1 23,562 68.0 204,887 (26,872) -53.3 Operating expenses 96,565 13,408 -4.8 32.0 (2,303) 11,105 (2,185) -2.1 Operating income (loss) TOTAL 424,838 100.0 3,765,983 862,025 100.0 433,088 100.0 8,250 1.9 Net sales 8,250 424,838 3,765,983 433,088 1.9 862,025 External sales Intersegment 386,574 91.0 3,356,026 385,943 89.1 (631) -0.2 782,435 90.8 Operating expenses 38,264 9.0 47,145 10.9 8,881 23.2 79,590 9.2 409,957 Operating income Notes: 1. U.S.$1=Yen 115, for convenience only. 2. Electronic materials and components products: Multilayer ceramic chip capacitors, Rare-earth magnets, Inductors, Switching power supplies, HDD heads, Organic EL displays Recording media products: Audio tapes, Video tapes, CD-Rs, MDs, DVDs, Tape-based data storage media for computers 2nd quarter Consolidated results Term Product Electronic materials and components Net sales External sales Intersegment Operating expenses Operating income Recording media Net sales External sales Intersegment Operating expenses Operating income (loss) TOTAL Net sales External sales Intersegment Operating expenses Operating income 2Q of FY2007 (July 1, 2006 Sep. 30, 2006) (Yen millions) % 196,576 196,576 175,662 20,914 2Q of FY2008 (July 1, 2007 - September 30, 2007) (Yen millions) % 100.0 89.4 10.6 212,975 212,975 194,547 18,428 24,622 100.0 24,622 25,287 102.7 (665) -2.7 13,414 13,414 826 12,588 100.0 226,389 226,389 195,373 31,016 100.0 221,198 221,198 200,949 20,249 100.0 100.0 90.8 9.2 18 91.3 8.7 6.2 93.8 86.3 13.7 Change (U.S.$ thousands) (Yen millions) Change(%) 1,851,957 1,851,957 1,691,714 160,243 16,399 16,399 18,885 (2,486) 8.3 8.3 10.8 -11.9 116,643 (11,208) 116,643 (11,208) 7,182 (24,461) 109,461 13,253 -45.5 -45.5 -96.7 - 1,968,600 1,968,600 1,698,896 269,704 5,191 5,191 (5,576) 10,767 2.3 2.3 -2.8 53.2 TDK Corporation Consolidated 1H of FY March 2008(U.S. GAAP) 2. Geographic segment information Term Region Japan Americas Europe Asia and others Intersegment eliminations Total Net sales Operating income Net sales Operating income Net sales Operating income (loss) Net sales Operating income Net sales Operating income (loss) Net sales Operating income 1H of FY2007 (April 1, 2006 Sep. 30, 2006) (Yen millions) % 193,808 100.0 15,129 7.8 57,155 100.0 4,781 8.4 39,074 100.0 (924) -2.4 287,385 100.0 19,168 6.7 152,584 (110) 424,838 100.0 38,264 9.0 1H of FY2008 FY2007 Change (April 1, 2007 (April 1, 2006 September 30, 2007) March 31, 2007) (Yen millions) % (U.S.$ thousands) (Yen millions) Change(%) (Yen millions) % 201,260 100.0 1,750,087 7,452 3.8 397,147 100.0 30,257 15.0 263,104 15,128 100.0 31,277 7.9 56,062 100.0 487,496 (1,093) -1.9 111,689 100.0 5,284 9.4 45,948 503 10.5 7,869 7.0 31,967 100.0 277,974 (7,107) -18.2 84,329 100.0 (3,666) -11.5 (31,878) (2,742) -296.8 (3) -0.0 312,723 100.0 2,719,330 25,338 8.8 572,979 100.0 16,243 5.2 141,244 (2,925) -15.3 41,515 7.2 168,924 1,468,904 16,340 304,119 973 8,461 1,083 1,068 433,088 100.0 3,765,983 8,250 1.9 862,025 100.0 47,145 10.9 409,957 8,881 23.2 79,590 9.2 Notes: 1. Net sales in each geographic area are based on the location of TDK entities where the sales are generated. 2. U.S.$1=Yen 115, for convenience only. 2nd quarter Consolidated results Term Region Japan Americas Europe Asia and others Intersegment eliminations Total Net sales Operating income Net sales Operating income Net sales Operating income (loss) Net sales Operating income Net sales Operating income Net sales Operating income 2Q of FY2007 (July 1, 2006 Sep. 30, 2006) (Yen millions) % 100,400 100.0 8,767 8.7 29,691 100.0 2,728 9.2 19,986 100.0 161 0.8 150,837 100.0 9,239 6.1 79,716 646 221,198 100.0 20,249 9.2 2Q of FY2008 (July 1, 2007 Change September 30, 2007) (Yen millions) % (U.S.$ thousands) (Yen millions) Change(%) 101,475 100.0 882,391 1,075 1.1 20,803 20.5 180,896 12,036 137.3 28,850 100.0 250,870 (841) -2.8 4,663 16.2 40,548 1,935 70.9 13,649 100.0 118,687 (6,337) -31.7 (3,168) -23.2 (27,548) (3,329) 169,863 100.0 1,477,069 19,026 12.6 9,643 5.7 83,852 404 4.4 87,448 760,417 7,732 925 8,044 279 226,389 100.0 1,968,600 5,191 2.3 31,016 13.7 269,704 10,767 53.2 3. Sales by region Term 1H of FY2007 (April 1, 2006 September 30, 2006) (Yen millions) % 51,325 12.1 38,870 9.2 251,706 59.2 341,901 80.5 82,937 19.5 424,838 100.0 1H of FY2008 (April 1, 2007 September 30, 2007) (Yen millions) (U.S.$ thousands) % 50,947 11.8 443,017 32,879 7.6 285,904 272,995 63.0 2,373,870 356,821 82.4 3,102,791 76,267 17.6 663,192 433,088 100.0 3,765,983 Region Americas Europe Asia and others Overseas sales total Japan Net sales Notes: 1. Overseas sales are based on the location of the customers. 2. U.S.$1=Yen 115, for convenience only. Change (Yen millions) Change(%) (378) (5,991) 21,289 14,920 (6,670) 8,250 -0.7 -15.4 8.5 4.4 -8.0 1.9 2nd quarter Consolidated results Term Region Americas Europe Asia and others Overseas sales total Japan Net sales 2Q of FY2007 (July 1, 2006 September 30, 2006) (Yen millions) % 26,806 12.1 19,849 9.0 132,587 59.9 179,242 81.0 41,956 19.0 221,198 100.0 2Q of FY2008 (July 1, 2007 September 30, 2007) (Yen millions) (U.S.$ thousands) % 26,212 11.6 227,930 14,869 6.6 129,296 147,984 65.3 1,286,817 189,065 83.5 1,644,043 37,324 16.5 324,557 226,389 100.0 1,968,600 19 Change (Yen millions) Change(%) (594) (4,980) 15,397 9,823 (4,632) 5,191 -2.2 -25.1 11.6 5.5 -11.0 2.3 FY2007 (April 1, 2006 March 31, 2007) (Yen millions) % 103,124 11.9 83,545 9.7 504,004 58.5 690,673 80.1 171,352 19.9 862,025 100.0