SLM Introduction SLM Introduction to EMAL May. 12, 2011

SLM CO., LTD. Table of Content A Overview B Available products C Manufacturing and Facility D Quality Control E Certificates OthersF SLM Introduction to EMAL

Overview SLM Introduction to EMAL

SLM CO., LTD. 1) Overview  CEO Mr. YEON JOO, CHOE  Establishment April 1992  Business Item Al-Grain Refiner, Al-Modifier, Al Alloys  Address 562-1, Wanggil-dong, Seo-Ku, Incheon, Korea  Land property Owned  Capital USD1,000,000  Employee 26  Production Capacity (Monthly) Al-Grain Refiner (400m/t), Al-Modifier (400m/t), Other master Alloys(300m/t)  Area Scope Gross Area: 15,840sqm Factory Site Area: 3,960sqm SLM Introduction to EMAL

SLM CO., LTD. 2) History Feb.1992 Jun Started production and sales of AlTiB Waffle Apr Developed AlTiB rod in coil & AlSr May Apr Company name changed to “SLM Co.,LTd.” with capital USD 1,000,000 Jun Acquired ISO9001(DNV) Oct Developed Al-Zr Rod Mar Sep Oct Mar Apr Acquired ISO Established Sochon Light Metal in Boocheon city, Keonggi-do Move to Namdong, Incheon and expanded monthly capacity to 600MT Moved to Wanggil-dong, Incheon and expanded monthly capacity to 1,100MT Installed Conform & Properzi (Continuous Casting & Extrusion Machine) Developed AlSr10% rod in coil Developed AlSr15% rod in coil

SLM CO., LTD. 3) Organization Production Dep. Administration Dep. Sales Dep. Environmental Safety Team CEO QC Team General Affairs Purchasing Accounting Overseas Domestic Melting/Casting Extrusion Maintenance SLM Introduction to EMAL

SLM CO., LTD. Available Products SLM Introduction to EMAL

SLM CO., LTD. 1) Aluminium Grain Refiner ElementComposition(%)Available form Aluminum Titanium-BoronAlTi3%B1%Coil, Cut rod, Castbar Aluminum Titanium-BoronAlTi5%B1% Coil, Cut rod, Castbar Aluminum Titanium-BoronAlTi5%B0.2%Coil, Cut rod, Castbar Aluminum Titanium-BoronAlTi6%B0.2%Coil, Cut rod, Castbar SLM Introduction to EMAL

SLM CO., LTD. MicrostructureTP-1 Test 1) Aluminium Grain Refiner – Microstructure SLM Introduction to EMAL

2) Aluminium Modifier SLM CO., LTD. ElementComposition(%)Available form Aluminum StrontiumAlSr5% Waffle, Coil, Cut rod, Castbar, Plate Aluminum StrontiumAlSr10% Waffle, Coil, Cut rod, Castbar, Plate Aluminum StrontiumAlSr15% Waffle, Coil, Cut rod, Castbar, Plate SLM Introduction to EMAL

AlSr10 Castbar x200 AlSr10 Coil x200 1) Aluminium Modifier - Microstructure SLM Introduction to EMAL

3) Aluminium Master Alloy Allloy Composition(%) Aluminum Antimony5 or 10 Sb Aluminum Bismuth3 or 9 Bi Aluminum Chrome5 or 20 Cr Aluminum Cobalt5 or 10 Co Aluminum Copper10 or 50 Cu Aluminum Iron5 or 10 Fe Aluminum Lead5 Pb Aluminum Lithium5 Li Aluminum Magnesium10,30 or 40 Mg Aluminum Manganese10 or 20 Mn Aluminum Nickel5 or 10 Ni Aluminum Silicon15,30,40 Si Aluminum Vanadium5V or 10V Aluminum Zinc5Zn Aluminum Zirconium5 or 10Zr SLM Introduction to EMAL

Manufacturing & Facility SLM Introduction to EMAL

SLM CO., LTD. 1) Manufacturing process Properzi & Conform Process Coil, Cut rod Packing Raw material Melting Funace Continuous M/C Conform M/C Take-up M/C Castbar Packing SLM Introduction to EMAL

SLM CO., LTD. 1) Manufacturing process Casting ProcessExtrusion Process Raw material Melting Furnace Waffle, lngot Casting M/C Billet, Ingot, Waffle Packing Plate, Bar Packing Melting Fumace Billet Casing M/C Billet Pre-heating Extrusion Cutting Raw material

SLM CO., LTD. 2) Facility – Production Equipment  Induction Furnace  Crucible Furnace  Reverberatory Furnace  Continuous casting Machine (Ingot, Waffle, Billet)  Properzi Machine  Conform Machine  Preheating furnace for Dies and Billets  Extrusion Line  Cutting Machine Facility List SLM Introduction to EMAL

SLM CO., LTD. 2) Facility - Test Equipment  Our lab has provided the customers with high trustworthy analytical reports for the below items. It’s operated round clock and the reliable members are always stand-by to offer the best service. ICP-OES Optical Microscope Particle Size Analyzer Experimental Induction Furnace Mounting Press SEM, Polisher Test Equipment Physical Analysis Metallographic Inspection Chemical Analysis TP-1 Grain refining test Elongation Test items SLM Introduction to EMAL

SLM CO., LTD. Quality Control SLM Introduction to EMAL

SLM CO., LTD. 1) Quality Control Process– eg. Grain Refiner Major Process StepsControl Criteria 1. Raw material: Pure AluminiumMaterial Certified 2. Melting of pure Al in melting furnaceWeight of Aluminium 3. Mixing of saltOperating procedure 4.Salt removalOperating procedure 5. Holding furnaceOperating procedure 6. Continuous Casting(Properzi M/C) Operating procedure, Chemical analysis, Particle Size, Particle distribution, Cleanliness(longitudal/diameter), Density, Grainrefiner test 7. Continuous Extrusion(Conform M/C) Operating procedure, Chemical analysis, Particle Size, Particle distribution, Cleanliness, Density, Grainrefiner test 8. Coil Packing Coil weight, Pallet weight, Color code, Tag, Packing document 9. ShipmentCustomer specification Shipping documents SLM Introduction to EMAL

SLM CO., LTD. 2) Process Control Criteria - eg. Grain Refiner No.DescriptionControl limitFrequency of Inspections 1.Control of Diameter9.5 ± 0.3mmEach lot 2.Control of Titanium5.0 ± 0.5%Each lot 3.Control of Boron1.0 ± 0.2%Each lot 4.Rod IdentificationTag & ColorEach lot SLM Introduction to EMAL

SLM CO., LTD. Certificates SLM Introduction to EMAL

SLM CO., LTD. 1) ISO 9001 SLM Introduction to EMAL

SLM CO., LTD.  Certification of promising Small & Medium Enterprise Medium Enterprise  Certificate of Promising Export Firm 2) Certificate of Promising Enterprise – Incheon city SLM Introduction to EMAL

SLM CO., LTD. 3) Other Certifiacates  The Korean Professional Engineers Association Membership- President Mr. Choe SLM Introduction to EMAL

Others SLM Introduction to EMAL

SLM CO., LTD. 1) Monthly production capacity ~As of today Future Plan 2,500 2,000 1,500 1, Grain Refiner Modifier Al alloys SLM Introduction to EMAL

SLM CO., LTD. 2) SLM Intellectual Property Type Patent Title Registered Nationality Registered Number Registered Date Manufacturing technology of lengthened life-cycle White cast-iron of high intensity, High elongation & High- Chromium Korea Manufacturing technology of Al-Tin bearing materials by horizontal double-role Korea Mechanical property improvement of Al-Casting Product which containing iron Impurity Korea Method of molding metal particlesU.S.A U.S Patent #5,328, Light-weight CON-ROD reinforcing agentKorea Manufacturing Technology of Strong-cable of High intensity Al-complex materials Korea Fringe Casting Equipment Korea Utility Model High-Strength aluminium alloy method & manufacturing technology Korea Patent SLM Introduction to EMAL

SLM CO., LTD. Korea EUROPE CHINA N. AMERICA S. AMERICA OCEANIA AFRICA KOREA 3) Product Users Choil Aluminium Sheet USA Spectro Alloys, G&S Metal Consultants A356.2 Alloy Japan Katagi Aluminium, Topy Enterprises Sheet / Wheel Thailand Mitsubish Thailand/ Hayes Lemmerz Australia PYROTEK INDIA MIDDLE EAST ALBA, DUBAL, EGYTALUM, MIDAL CABLE Middle East THAI LAND INDONESIA JAPAN

SLM CO., LTD. 4) Main Customers of SLM SLM Introduction to EMAL

Thank you! SLM Introduction to EMAL