Supplementary data for the 1st Half of FY March 2008 (April 1, 2007 – September 30, 2007) October 31, 2007 Corporate Communications Dept. 1H of FY March 2008 1 Cautionary Statements with Respect to Forward-Looking Statements This Thismaterial materialcontains containsforward-looking forward-lookingstatements, statements,including includingprojections, projections,plans, plans,policies, policies, management strategies, targets, schedules, understandings and evaluations, about management strategies, targets, schedules, understandings and evaluations, aboutTDK TDKand anditsits group groupcompanies companies(TDK (TDKGroup). Group). These Theseforward-looking forward-lookingstatements statementsare arebased basedon onthe thecurrent current forecasts, forecasts,estimates, estimates,assumptions, assumptions,plans, plans,beliefs beliefsand andevaluations evaluationsofofTDK TDKGroup Groupininlight lightofof information informationcurrently currentlyavailable availabletotoit,it,and andcontain containknown knownand andunknown unknownrisks, risks,uncertainties uncertaintiesand andother other factors. factors.TDK TDKGroup Grouptherefore thereforewishes wishestotocaution cautionreaders readersthat, that,being beingsubject subjecttotorisks, risks,uncertainties uncertainties and andother otherfactors, factors,TDK TDKGroup’s Group’sactual actualresults, results,performance, performance,achievements achievementsororfinancial financialposition position could couldbe bematerially materiallydifferent differentfrom fromany anyfuture futureresults, results,performance, performance,achievements achievementsororfinancial financial position positionexpressed expressedororimplied impliedby bythese theseforward-looking forward-lookingstatements, statements,and andTDK TDKGroup Groupundertakes undertakesno no obligation to publicly update or revise any forward-looking statements after the issue of this material obligation to publicly update or revise any forward-looking statements after the issue of this material except exceptas asprovided providedfor forininlaws lawsand andordinances. ordinances. The electronics markets in which TDK The electronics markets in which TDKGroup Groupoperates operatesare arehighly highlysusceptible susceptibletotorapid rapidchanges. changes. Risks, uncertainties and other factors that can have significant effects on TDK Group include, Risks, uncertainties and other factors that can have significant effects on TDK Group include,but but are arenot notlimited limitedto, to,shifts shiftsinintechnology, technology,fluctuations fluctuationsinindemand, demand,prices, prices,interest interestand andforeign foreignexchange exchange rates, rates,and andchanges changesinineconomic economicenvironments, environments,conditions conditionsofofcompetition, competition,laws lawsand andregulations. regulations. 1H of FY March 2008 2 Capital expenditures, Depreciation and amortization, Research and development October 31, 2007 FY March 2007 [Results] FY March 2008 FY March 2008 Projections July 31, '07 Projections Oct. 31, '07 Capital expenditures 70.4 75.0 75.0 Depreciation and amortization 65.3 70.0 70.0 Research and development 50.1 53.0 53.0 5.8% 6.1% 6.1% Unit:Yen billions (Share of net sales) <Net sales> 862.0 865.0 1H of FY March 2008 865.0 3 Consolidated results and projections Unit:Yen billions,% October 31, 2007 FY March 2007 [Results] FY March 2008 FY March 2008 Projections July 31, '07 Projections Oct. 31, '07 (Yen bill.) (Yen bill.) (Yen bill.) (%) (%) (%) Y on Y growth (%) Net sales 862.0 100.0% 865.0 100.0% 865.0 100.0% 0.3% Electronic materials and components 758.8 88.0% 816.0 94.3% 817.0 94.5% 7.7% Electronic materials 199.2 23.1% 229.0 26.5% 213.0 24.6% 6.9% Electronic devices 198.2 23.0% 210.0 24.3% 215.0 24.9% 8.5% Recording devices 304.8 35.4% 299.0 34.6% 316.0 36.5% 3.7% 56.6 6.5% 78.0 8.9% 73.0 8.5% 29.1% 103.2 12.0% 49.0 5.7% 48.0 5.5% -53.5% Operating income 79.6 9.2% 90.0 10.4% 90.0 10.4% 13.1% Income before income taxes 88.7 10.3% 96.0 11.1% 96.0 11.1% 8.3% Net income 70.1 8.1% 72.0 8.3% 72.0 8.3% 2.7% Other electronic components Recording media Exchange rate (U.S.$=Yen) 117 113 1H of FY March 2008 115 * An average yen-U.S. dollar exchange rate of Yen110 is assumed from the third quarter of FY March 2008. 4 Sales (Yen billion) Sales and Operating income ratio 250 15.0% 200 12.0% 150 9.0% 100 6.0% 50 3.0% 0 Sales 2Q 3Q 4Q 1Q 2Q 3Q 4Q 1Q 2Q 0.0% 183.0 222.7 222.1 203.6 221.2 223.3 213.9 206.7 226.4 Operating income ratio 8.3% 9.6% 5.0% FY Mar. 06 8.8% 9.2% 10.4% 8.5% FY Mar. 07 1H of FY March 2008 7.8% 13.7% FY Mar. 08 5 Share of sales by products (2Q of FY Mar. 08) Recording media 6% Electronic Recording devices 38% Sales and Operating income ratio of Electronic materials and components materials 24% Electronic devices 24% Sales (Yen billions) Other electronic components 8% Sales 250 15.0% 200 12.0% 150 9.0% 100 6.0% 50 3.0% 0 0.0% 2Q 3Q 4Q 1Q 2Q 3Q 4Q 1Q 2Q 157.4 192.1 194.9 180.1 196.6 194.5 187.6 185.4 213.0 Operating income ratio 10.7% 11.6% 10.2% 10.9% 10.6% 11.8% 9.7% 9.5% 8.7% FY Mar. 06 1H of FY March 2008 FY Mar. 07 FY Mar. 08 6 Share of sales by products (2Q of FY Mar. 08) Recording media 6% Electronic Recording devices 38% materials 24% Sales of Electronic materials Electronic devices 24% 60 Sales (Yen billions) Other electronic components 8% 50 40 30 20 10 0 Sales 2Q 3Q 4Q 1Q 2Q 3Q 4Q 1Q 2Q 45.0 47.6 47.1 47.7 51.0 50.3 50.2 49.7 53.1 FY Mar. 06 1H of FY March 2008 FY Mar. 07 FY Mar. 08 7 Share of sales by products (2Q of FY Mar. 08) Recording media 6% Electronic Recording devices 38% materials 24% Sales of Electronic devices Electronic devices 24% 60 Sales (Yen billions) Other electronic components 8% 50 40 30 20 10 0 Sales 2Q 3Q 4Q 1Q 2Q 3Q 4Q 1Q 2Q 32.3 47.0 46.7 46.4 50.2 50.5 51.1 50.0 54.5 FY Mar. 06 1H of FY March 2008 FY Mar. 07 FY Mar. 08 8 Share of sales by products (2Q of FY Mar. 08) Recording media 6% Electronic Recording devices 38% materials 24% Sales of Recording devices Electronic devices 24% 100 Sales (Yen billions) Other electronic components 8% 80 60 40 20 0 Sales 2Q 3Q 4Q 1Q 2Q 3Q 4Q 1Q 2Q 71.8 85.7 89.9 73.8 80.3 76.8 74.0 70.4 86.5 FY Mar. 06 1H of FY March 2008 FY Mar. 07 FY Mar. 08 9 Share of sales by products (2Q of FY Mar. 08) Recording media 6% Electronic Recording devices 38% materials 24% Sales of Other electronic components Electronic devices 24% 20 Sales (Yen billions) Other electronic components 8% 10 0 Sales 2Q 3Q 4Q 1Q 2Q 3Q 4Q 1Q 2Q 8.3 11.8 11.2 12.3 15.0 16.9 12.3 15.3 19.0 FY Mar. 06 1H of FY March 2008 FY Mar. 07 FY Mar. 08 10 Share of sales by products (2Q of FY Mar. 08) Recording media 6% Electronic Recording devices 38% materials 24% Electronic devices 24% Sales and Operating income ratio of Recording media Sales (Yen billions) Other electronic components 8% Sales 50 10.0% 40 0.0% 30 -10.0% 20 -20.0% 10 -30.0% 0 -40.0% 2Q 3Q 4Q 1Q 2Q 3Q 4Q 1Q 2Q 25.6 30.6 27.2 23.5 24.6 28.7 26.4 21.3 13.4 Operating income ratio -6.7% -3.0% -31.9% -7.0% -2.7% 0.5% -0.1% -7.0% 93.8% FY Mar. 06 1H of FY March 2008 FY Mar. 07 FY Mar. 08 11