SUMITOMO METAL MINING 1

SUMITOMO METAL MINING 1

SUMITOMO METAL MINING 2

Pogo All Weather Road Pogo Mine SUMITOMO METAL MINING 3

(JPY 100M) SUMITOMO METAL MINING 4

JPY 100M JPY 100M SUMITOMO METAL MINING 5

Business operations focused on earnings maximization and cost minimization SUMITOMO METAL MINING 6

(08-1Q = 1.0) SUMITOMO METAL MINING 7

08/1-2Q=100 SUMITOMO METAL MINING 8

JPY 100M Holding above 50% SUMITOMO METAL MINING 9

JCRRanking: Short-term:-1(highest level) Long-term:A+(top 30 SUMITOMO METAL MINING 10

Pogo Mine Pogo Mine SUMITOMO METAL MINING 11

Maintain and make full use of sound financial position SUMITOMO METAL MINING 12

Practical use as SMM s mining school to develop engineers SUMITOMO METAL MINING 13

Category Additional SMM staff Roles Additional SMM staff to serve as operators at Pogo (previously 4 SMM staff Pogo Pogo Mine SUMITOMO METAL MINING 14

Acquisition, in July 2009 of Teck s interest (40%) for $245M, bringing Japanese interest to 100% (SMM85%) First overseas mine with SMM serving as operator Pogo Cash operating cost (per toz 2009 : further reduction 2008 US$487 2007 US$499 Logo mark designed by a high school student in Pogo SUMITOMO METAL MINING 15

FY09 Significant reduction of production cost, Pursuit of rights to profitable copper mines SUMITOMO METAL MINING 16

(1) FY09CBNCNi refinery : smooth startup after expansion CBNC : production launch; Increase capacity from 10kt to 22kt (product: 17kt) Ni refinery: Increase capacity from 36kt to 41kt (product: 33.2kt) (2) Goro production launch by the end of 2009 (SMM forecast (3) Taganito:SMM announced on 14 Sep 2009 that SMM has reached a decision to proceed with Taganito project. Total investment US$1.3billion Launch of commercial production in 2013 Products Ni/Co mixed sulfide (Ni:30kt/y Co2.6kt/y) sell to SMM Production period Approx. 30yrs (4) 2013 Ni refinery: Increase capacity from 41kt to 65Kt SUMITOMO METAL MINING 17

HPAL+MCLE in nickel refining * Coral Bay Nickel Corp. (CBNC: Philippines): Production of nickel/cobalt mixed sulfide by HPAL * Domestic nickel refinery: Japan s only production of electrolytic nickel/cobalt from mixed sulfide, applying MCLE (matte chlorine leach electro winning) * Developments at CBNC Phase I: 2004: launch of production at 10,000 t/yr Phase II: 2009: operations stable (investments into production expansion: US$307mn) Capacity to be expanded to 22,000 t/yr HPAL: High Pressure Acid Leach: technology for recovering nickel and cobalt from low-grade laterite nickel ore First company to achieve large-scale commercial production CBNC Philippines * 2007: Received Grand Prize in Nikkei Manufacturing Awards * 2008: Received Watanabe Prize from Mining and Materials Processing Institute of Japan * 2009: Received Okochi Memorial Production Award SUMITOMO METAL MINING 18

Ore Slurry Sulfuric Acid, Vapors (Recovery) Vapors Heater Autoclave Flash Vessel Autoclave operating conditions temperature: 230250 Pressure: 35Mpa SUMITOMO METAL MINING 19

Only CBNC achieved planned production volume in short time HPAL plants at other companies either shut down or significantly undershot planned production volume. Cawse (Norilisk), Bulong (Preston): Plants closed. Ravensthorpe (BHP): Despite investment of US$2bn, plant closed almost immediately after production startup; buyer now being sought. Murrin Murrin (Anaconda): Operating at near 30,000 t/yr, against planned 45,000 t/yr Raventhrope SUMITOMO METAL MINING 20

SMM is Japan s only producer of electrolytic nickel. April 2009:production capacity increased from 36Kt to 41Kt Total investment 5.7bn (Production capacity to reach 65Kt in 2012; capital investment also including facility expansion) MCLE: matte chlorine leach electrowinning (Hydrometallurgy smelting method) Outstanding productivity, high quality achieved Reduction in environmental burden Improvement of work environment Nickel refinery won Okochi Memorial Production Award 1980: Cobalt separation by solvent extraction method 1996: Achievement of MCLE process Niihama Nickel Refinery Japan SUMITOMO METAL MINING 21

SMM announced on 14 Sep 2009 that SMM has reached a decision to proceed with Taganito project. Philippines Location: Taganito, northeast Mindanao Island,the Philippines Total investment US$1.3billion Launch of commercial production in 2013 Products Ni/Co mixed sulfide (Ni:30kt/y Co2.6kt/y) sell to SMM Production period Approx. 30yrs Coral Bay Taganito Planned Site SUMITOMO METAL MINING 22

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Pogo Mine SUMITOMO METAL MINING 24

$/T 10,000 9,000 8,000 7,000 6,000 Curre nt LME Cas h & Stoc k His tric al Chart LME COMEX SHFE LME Cas h KT 2,000 1,800 1,600 1,400 1,200 5,000 4,000 3,000 2,000 1,000 0 00/1 00/7 01/1 01/7 02/1 02/7 03/1 03/7 04/1 04/7 05/1 05/7 06/1 06/7 07/1 07/7 08/1 08/7 09/1 09/7 1,000 SUMITOMO METAL MINING 25 800 600 400 200 0 (Source: SMM

E-Cu SUMITOMO METAL MINING 26

09 forecast: 6.78$/lb (Source: SMM SUMITOMO METAL MINING 27

Nickel Special/stainless steel, electronic materials, etc. SUMITOMO METAL MINING 28

Au $/Toz Oil $/barrel Fear of inflation Financial crisis Fear of inflation SUMITOMO METAL MINING 29

(SourceSMM Price trends of SMM s main metals: Cu Ni Au SUMITOMO METAL MINING 30

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Note The materials provided herein are not intended as disclosure under the Securities Law, and no warranty is made as to their completeness or accuracy. Any projections included in these materials are based solely on information available at the time of this briefing, and are subject to change based on market conditions, competitive conditions, and a number of other factors. Therefore, we ask that you refrain from making any investment decisions based on these materials alone. The Company cannot be held responsible in any way for any losses that may occur as a result of the use of these materials. All copyrights, trademarks, and intellectual property rights attaching to the materials herein are the sole property of Sumitomo Metal Mining Co., Ltd. SUMITOMO METAL MINING 32