TDK Corporation Consolidated 1H of FY March 2008(U.S. GAAP) I-12) Supplementary Information (Consolidated) Ratio of results on a Consolidated basis to results on a Non-Consolidated basis Ratio of 1H of FY2007 Ratio of 1H of FY2008 2.5 2.4 4.7 6.7 2.6 4.9 2.8 82.2 Net sales Operating income Income before income taxes Net income Exchange rates used for conversion Term Item Average rate for the period The end of the period April 1, 2006 Sep. 30, 2006 US$=Yen Euro=Yen 146.01 115.38 117.90 149.77 April 1, 2007 Sep. 30, 2007 US$=Yen Euro=Yen 119.40 162.33 115.43 163.38 Overseas sales by division Term Product Electronic materials and components Electronic materials Electronic devices Recording devices Other electronic components Recording media Overseas sales April 1, 2006 September 30, 2006 Ratio to Amount (Yen millions) sales (%) 305,205 71.9 71,495 16.9 61,716 14.5 151,263 35.6 20,731 4.9 36,696 8.6 341,901 80.5 April 1, 2007 September 30, 2007 Ratio to Amount (Yen millions) sales (%) 330,716 76.4 78,089 18.1 71,031 16.4 155,107 35.8 26,489 6.1 26,105 6.0 356,821 82.4 Change(%) 8.4 9.2 15.1 2.5 27.8 -28.9 4.4 2nd quarter Consolidated results Term Product Electronic materials and components Electronic materials Electronic devices Recording devices Other electronic components Recording media Overseas sales July 1, 2006 September 30, 2006 Ratio to Amount (Yen millions) sales (%) 160,480 72.5 37,225 16.8 32,743 14.8 78,873 35.6 11,639 5.3 18,762 8.5 179,242 81.0 July 1, 2007 September 30, 2007 Ratio to Amount (Yen millions) sales (%) 178,889 79.0 40,653 18.0 37,680 16.6 85,467 37.7 15,089 6.7 10,176 4.5 189,065 83.5 22 Change(%) 11.5 9.2 15.1 8.4 29.6 -45.8 5.5 April 1, 2006 March 31, 2007 Ratio to Amount (Yen millions) sales (%) 611,932 71.0 145,548 16.9 125,930 14.6 299,772 34.8 40,682 4.7 78,741 9.1 690,673 80.1