TDK Corporation Consolidated 3Q of FY March 2008(U.S. GAAP) 8) Segment Information The following industry and geographic segment information are required by the Japanese Financial Instruments Exchange Law. 1. Industry segment information 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 The 3rd quarter of FY2007 (Oct. 1, 2006 Dec. 31, 2006) (Yen millions) % 194,541 194,541 171,533 23,008 100.0 28,712 28,712 28,579 133 100.0 223,253 223,253 200,112 23,141 100.0 88.2 11.8 99.5 0.5 89.6 10.4 The 3rd quarter of FY2008 Change (October 1, 2007 - December 31, 2007) (Yen millions) 217,766 217,766 190,833 26,933 % 100.0 87.6 12.4 (U.S.$ thousands) (Yen millions) Change(%) 1,910,228 1,910,228 1,673,973 236,255 7,576 100.0 7,576 7,792 102.9 -2.9 (216) 225,342 225,342 198,625 26,717 100.0 88.1 11.9 23,225 23,225 19,300 3,925 11.9 11.9 11.3 17.1 66,456 (21,136) 66,456 (21,136) 68,351 (20,787) (1,895) (349) -73.6 -73.6 -72.7 - 1,976,684 1,976,684 1,742,324 234,360 2,089 2,089 (1,487) 3,576 0.9 0.9 -0.7 15.5 9-month-period results Term The 9-month-period The 9-month-period of FY2008 of FY2007 Change (April 1, 2006 (April 1, 2007 - December 31, 2007) Dec. 31, 2006) (Yen millions) (Yen millions) (U.S.$ thousands) (Yen millions) Change(%) % % FY2007 (April 1, 2006 March 31, 2007) (Yen millions) Product % Electronic materials and components 758,821 100.0 571,248 100.0 616,187 100.0 5,405,149 44,939 7.9 Net sales 758,821 571,248 616,187 5,405,149 44,939 7.9 External sales Intersegment 677,046 89.2 88.9 553,214 89.8 4,852,755 45,541 9.0 507,673 Operating expenses 81,775 10.8 63,575 11.1 62,973 10.2 552,394 (602) -0.9 Operating income Recording media 103,204 100.0 76,843 100.0 42,243 100.0 370,553 (34,600) -45.0 Net sales 42,243 370,553 (34,600) -45.0 103,204 76,843 External sales Intersegment 79,013 102.8 31,354 74.2 275,035 (47,659) -60.3 105,389 102.1 Operating expenses (2,170) -2.8 10,889 25.8 95,518 13,059 (2,185) -2.1 Operating income (loss) TOTAL 648,091 100.0 658,430 100.0 5,775,702 10,339 1.6 862,025 100.0 Net sales 648,091 658,430 5,775,702 10,339 1.6 862,025 External sales Intersegment 586,686 90.5 584,568 88.8 5,127,790 (2,118) -0.4 782,435 90.8 Operating expenses 61,405 9.5 73,862 11.2 647,912 12,457 20.3 79,590 9.2 Operating income Notes: 1. U.S.$1=Yen 114, for convenience only. 2. Electronic materials and components products: Multilayer ceramic chip capacitors, Rare-earth magnets, Inductors, Switching power supplies, HDD heads, Organic EL displays Recording media products: Audio tapes, Video tapes, CD-Rs, MDs, DVDs, Tape-based data storage media for computers 17 TDK Corporation Consolidated 3Q of FY March 2008(U.S. GAAP) 2. Geographic segment information Term Region Japan Americas Europe Asia and others Intersegment eliminations Total Net sales Operating income Net sales Operating income Net sales Operating income (loss) Net sales Operating income Net sales Operating income (loss) Net sales Operating income The 3rd quarter of FY2007 (Oct. 1, 2006 Dec. 31, 2006) (Yen millions) % 102,397 100.0 9,584 9.4 28,267 100.0 916 3.2 22,465 100.0 503 2.2 146,392 100.0 12,960 8.9 76,268 822 223,253 100.0 23,141 10.4 The 3rd quarter of FY2008 Change (October 1, 2007 December 31, 2007) (Yen millions) % (U.S.$ thousands) (Yen millions) Change(%) 102,895 100.0 902,588 498 0.5 9,758 9.5 85,597 174 1.8 26,194 100.0 229,772 (2,073) -7.3 2,953 11.3 25,904 2,037 222.4 11,130 100.0 97,631 (11,335) -50.5 (1,352) -12.1 (11,860) (1,855) 170,188 100.0 1,492,877 23,796 16.3 14,486 8.5 127,070 1,526 11.8 85,065 746,184 8,797 (872) (7,649) (1,694) 225,342 100.0 1,976,684 2,089 0.9 26,717 11.9 234,360 3,576 15.5 9-month-period 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 The 9-month-period of FY2007 (April 1, 2006 Dec. 31, 2006) (Yen millions) % 296,205 100.0 24,713 8.3 85,422 100.0 5,697 6.7 61,539 100.0 (421) -0.7 433,777 100.0 32,128 7.4 228,852 712 648,091 100.0 61,405 9.5 The 9-month-period of FY2008 FY2007 Change (April 1, 2007 (April 1, 2006 December 31, 2007) March 31, 2007) (Yen millions) % (U.S.$ thousands) (Yen millions) Change(%) (Yen millions) % 304,155 100.0 2,668,026 7,950 397,147 100.0 2.7 40,015 13.2 351,009 15,302 61.9 31,277 7.9 82,256 100.0 721,544 (3,166) -3.7 111,689 100.0 8,237 10.0 72,254 2,540 44.6 7,869 7.0 43,097 100.0 378,044 (18,442) -30.0 84,329 100.0 (5,018) -11.6 (44,018) (4,597) (3) -0.0 482,911 100.0 4,236,062 49,134 11.3 572,979 100.0 30,729 6.4 269,553 (1,399) -4.4 41,515 7.2 253,989 2,227,974 25,137 304,119 101 886 (611) 1,068 658,430 100.0 5,775,702 10,339 1.6 862,025 100.0 73,862 11.2 647,912 12,457 20.3 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.$1=Yen 114, for convenience only. 3. Sales by region Term Region Americas Europe Asia and others Overseas sales total Japan Net sales The 3rd quarter of FY2007 (Oct. 1, 2006 December 31, 2006) (Yen millions) % 26,872 12.0 22,279 10.0 129,353 58.0 178,504 80.0 44,749 20.0 223,253 100.0 The 3rd quarter of FY2008 (October 1, 2007 December 31, 2007) (Yen millions) (U.S.$ thousands) % 10.7 24,126 211,632 13,346 5.9 117,070 1,307,202 149,021 66.2 1,635,904 186,493 82.8 38,849 17.2 340,780 225,342 100.0 1,976,684 Change (Yen millions) Change(%) (2,746) (8,933) 19,668 7,989 (5,900) 2,089 -10.2 -40.1 15.2 4.5 -13.2 0.9 9-month-period results Term The 9-month-period of FY2007 (April 1, 2006 December 31, 2006) (Yen millions) % 78,197 12.1 61,149 9.4 381,059 58.8 520,405 80.3 127,686 19.7 648,091 100.0 The 9-month-period of FY2008 (April 1, 2007 December 31, 2007) (Yen millions) (U.S.$ thousands) % 75,073 11.4 658,535 46,225 7.0 405,482 422,016 64.1 3,701,895 543,314 82.5 4,765,912 115,116 17.5 1,009,790 5,775,702 658,430 100.0 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 114, for convenience only. 18 FY2007 Change (Yen millions) Change(%) (3,124) (14,924) 40,957 22,909 (12,570) 10,339 -4.0 -24.4 10.7 4.4 -9.8 1.6 (April 1, 2006 March 31, 2007) (Yen millions) % 103,124 11.9 9.7 83,545 58.5 504,004 690,673 80.1 19.9 171,352 862,025 100.0