Supplementary data for the FY March 2006 (April 1, 2005 – March 31, 2006) April 27, 2006 Cautionary Statements with Respect of Forward-Looking Statements This Thismaterial materialcontains containsforward-looking forward-lookingstatements, statements,including includingprojections, projections,plans, plans,policies, policies, management managementstrategies, strategies,targets, targets,schedules, schedules,understandings understandingsand andevaluations, evaluations,about aboutTDK TDKand and itsitsgroup groupcompanies companies(TDK (TDKGroup). Group). These Theseforward-looking forward-lookingstatements statementsare arebased basedon onthe the current currentforecasts, forecasts,estimates, estimates,assumptions, assumptions,plans, plans,beliefs beliefsand andevaluations evaluationsofofTDK TDKGroup Groupinin light lightofofinformation informationcurrently currentlyavailable availabletotoit,it,and andcontain containknown knownand andunknown unknownrisks, risks, uncertainties uncertaintiesand andother otherfactors. factors.TDK TDKGroup Grouptherefore thereforewishes wishestotocaution cautionreaders readersthat, that,being being subject subjecttotorisks, risks,uncertainties uncertaintiesand andother otherfactors, factors,TDK TDKGroup’s Group’sactual actualresults, results,performance, performance, achievements achievementsororfinancial financialposition positioncould couldbe bematerially materiallydifferent differentfrom fromany anyfuture futureresults, results, performance, performance,achievements achievementsororfinancial financialposition positionexpressed expressedororimplied impliedby bythese theseforwardforwardlooking lookingstatements, statements,and andTDK TDKGroup Groupundertakes undertakesno noobligation obligationtotopublicly publiclyupdate updateororrevise reviseany any forward-looking forward-lookingstatements statementsafter afterthe theissue issueofofthis thismaterial. material. The Theelectronics electronicsmarkets marketsininwhich whichTDK TDKGroup Groupoperates operatesare arehighly highlysusceptible susceptibletotorapid rapid changes. changes.Risks, Risks,uncertainties uncertaintiesand andother otherfactors factorsthat thatcan canhave havesignificant significanteffects effectson onTDK TDK Group Groupinclude, include,but butare arenot notlimited limitedto, to,shifts shiftsinintechnology, technology,fluctuations fluctuationsinindemand, demand,prices, prices, interest interestand andforeign foreignexchange exchangerates, rates,and andchanges changesinineconomic economicenvironments, environments,conditions conditionsofof competition, competition,laws lawsand andregulations. regulations. Sales by major customer industry (Electronic materials and components) YoY IT Home Electronics High-Speed, Large Capacity Networks Car Electronics + + + + Sales Weight 26% 67 ％ 9% 8 ％ 11% 9 ％ Others 16 ％ 16% Electronic materials & components (ex. Lambda Power) Results and projections of Capital expenditures, Depreciation and amortization, Research and development April 27, 2006 Unit:Yen millions FY March 2005 [Results] FY March 2006 [Results] FY March 2007 Projections Apr. 27 '06 Capital expenditures 61,005 73,911 70,000 Depreciation and amortization 52,806 58,540 62,000 Research and development 36,348 45,528 47,000 (Share of net sales) <Net sales> 5.5% 657,853 5.7% 795,180 FY March 2006 5.7% 820,000 4 Consolidated results and projections April 27, 2006 Unit:Yen millions,% FY March 2005 [Results] FY March 2006 [Results] (Yen mill.) (Yen mill.) (%) (%) FY March 2007 Projections Apr. 27 '06 Y on Y growth (Yen mill.) (%) (%) 657,853 100.0% 795,180 100.0% 820,000 100.0% 3.1% 545,214 82.9% 687,750 86.5% 718,000 87.6% 4.4% Electronic materials 174,800 26.6% 180,766 22.7% 198,300 24.2% 9.7% Electronic devices 116,387 17.7% 154,680 19.5% 195,600 23.9% 26.5% Recording devices 234,578 35.7% 315,928 39.7% 282,700 34.5% -10.5% 19,449 2.9% 36,376 4.6% 41,400 5.0% 13.8% 112,639 17.1% 107,430 13.5% 102,000 12.4% -5.1% Operating income 59,830 9.1% 60,523 7.6% 82,000 10.0% Income before income taxes 60,728 9.2% 66,103 8.3% 88,000 10.7% Net income 33,300 5.1% 44,101 5.5% 61,000 7.4% Net sales Electronic materials and components Other electronic components Recording media Exchange rate (U.S.$=Yen) 107 113 FY March 2006 110 5 Sales (Yen million) Sales and Operating income ratio(FY March 2005, 2006) 250,000 15.0% 200,000 12.0% 150,000 9.0% 100,000 6.0% 50,000 3.0% 0 Sales Operating income ratio 1Q 2Q 3Q 4Q 1Q 2Q 3Q 4Q 157,227 160,265 174,218 166,143 167,422 182,965 222,654 222,139 9.1% 8.3% 9.9% 8.9% 7.7% 8.3% 9.6% 5.0% FY March 2005 FY March 2006 0.0% FY March 2006 6 Share of sales by products(FY March 2006) Other electronic components 5% Recording devices 40% Electronic materials 23% Sales and Operating income ratio of Electronic materials and components(FY March 2005, 2006) Electronic devices 19% Sales (Yen millions) Recording media 13% 250,000 15.0% 200,000 12.0% 150,000 9.0% 100,000 6.0% 50,000 3.0% 0 Sales 1Q 2Q 3Q 4Q 1Q 2Q 3Q 4Q 0.0% 129,804 131,282 143,746 140,382 143,328 157,392 192,091 194,939 Operating income ratio 11.8% 11.8% 13.6% 12.2% FY March 2005 FY March 2006 10.7% 10.7% 11.6% 10.2% FY March 2006 7 Share of sales by products(FY March 2006) Other electronic components 5% Recording devices 40% Electronic materials 23% Electronic devices 19% Sales of Electronic materials(FY March 2005, 2006) Sales (Yen millions) Recording media 13% 50,000 40,000 30,000 20,000 10,000 0 1Q 2Q 3Q 4Q 1Q 2Q 3Q 4Q Sales 44,763 46,273 43,002 40,762 41,047 45,042 47,613 47,064 FY March 2005 FY March 2006 FY March 2006 8 Share of sales by products(FY March 2006) Other electronic components 5% Recording devices 40% Electronic materials 23% Electronic devices 19% Sales (Yen millions) Recording media 13% Sales of Electronic devices(FY March 2005, 2006) 50,000 40,000 30,000 20,000 10,000 0 1Q 2Q 3Q 4Q 1Q 2Q 3Q 4Q Sales 28,248 29,263 30,571 28,305 28,687 32,265 46,979 46,749 FY March 2005 FY March 2006 FY March 2006 9 Share of sales by products(FY March 2006) Other electronic components 5% Recording devices 40% Electronic materials 23% Electronic devices 19% Sales of Recording devices(FY March 2005, 2006) Sales (Yen millions) Recording media 13% 100,000 80,000 60,000 40,000 20,000 0 1Q 2Q 3Q 4Q 1Q 2Q 3Q 4Q Sales 52,163 51,170 65,351 65,894 68,464 71,824 85,736 89,904 FY March 2005 FY March 2006 FY March 2006 10 Share of sales by products(FY March 2006) Other electronic components 5% Recording devices 40% Electronic materials 23% Electronic devices 19% Sales (Yen millions) Recording media 13% Sales of Other electronic components (FY March 2005, 2006) 20,000 10,000 0 1Q Sales 4,630 2Q 3Q 4Q 1Q 2Q 4,576 4,822 5,421 5,130 8,261 FY March 2005 FY March 2006 3Q 4Q 11,763 11,222 FY March 2006 11 Share of sales by products(FY March 2006) Other electronic components 5% Recording devices 40% Electronic materials 23% Sales and Operating income ratio of Recording media (FY March 2005, 2006) Electronic devices 19% Sales (Yen millions) Recording media 13% 40,000 0.0% 30,000 -10.0% 20,000 -20.0% 10,000 -30.0% 0 1Q 2Q 3Q 4Q 1Q 2Q 3Q 4Q Sales 27,423 28,983 30,472 25,761 24,094 25,573 30,563 27,200 Operating income ratio -3.3% -7.3% -7.6% -9.1% -10.4% -6.7% -3.0% -31.9% FY March 2005 FY March 2006 -40.0% FY March 2006 12