Subsidiaries and Affiliates

Arkansas Steel Associates LLC
2803 Van Dyke Road
Newport, AR 72112
Tel: 870.523.3693
Fax: 870.523.4619
Web site:www.arkansassteel.com
Produces rail accessories, and cutting edge steel plate blades for earth-moving equipment and billets

AMBT Summit Company
Paseo de los Ponientes, Lote 15-19
Parque Industrial FIPASI
Silao, Gto C.P. 36100, Mexico
Tel 472.722.7021
Fax 472.722.7001
Producer of Laser Welded Steel Blanks

Atlantic Hills Corporation
1105 Lakewood Parkway
Suite 155
Alpharette, GA 30009-7625
Tel: 770.399.4694
Land Development

Hirotec Mexico S.A. de C.V.
Carretera Panamericana
Km. 5.5 Tramo Silao-Irapuato
2-A, L-C, Fracc. Parque Industrial Silao
Silao, Guanajuato, C.P. 36100
Mexico
Tel: 011.52.472.722.7152
Fax: 011.52.472.722.4497
Auto PartManufacturer

Diversified CPC International, Inc.
24338 W. Durkee Road
Channahon, IL 60410-0490
Tel: 815.423.5991
Fax: 815.423.5627
E-mail: dcpcintl@aol.com
Web site: www.diversifiedcpc.com
Distribution of Propellant Gas

Edgen Group
18444 Highland Road
Baton Rouge, LA 70809
Tel +1.225.756.9868
Fax +1.225.756.7963
http://www.edgengroup.com
Leading global distributor of specialized products to energy and infrastructure markets throught the following three brands:
http://www.edgenmurray.com
http://www.bl-supply.com
http://www.hspvalves.com

Global Stainless Supply, Inc.
Forgings, Flanges, and Fittings LLC
8900 Railwood Drive
Houston, TX 77078-4535
Tel: 713.980.5089
Toll Free: 877.980.3283
Fax: 713.980.5099
Web site:www.onestoppvf.com
Master Distributor of Stainless Steel Pipe, Fittings and Flanges

Hamilton Sundstrand Space Systems International, Inc.
One Hamilton Road, M/S 1A-2-A66
Windsor Locks, CT 06096-1010
Tel: 860.654.4682
Fax: 860.654.2673
Manufacturing of Astronautical Systems

The Hartz-Mountain Corporation
400 Plaza Drive
Secaucus, NJ 07094
Tel: 201.271.4800
Fax: 201.271.0164
Web site:www.hartz.com
Leading supplier of pet care products

HOWCO Group
2nd Floor, Fountain House
1-3 Woodside Crescent
Glasgow, Scotland G3 7UL
Tel:44 0 141 353 7800
Fax:44 0 141 353 7801

9611 Telge Road
Houston, TX 77095
Tel:281.649.8800
Fax: 281.649.8900

International Crankshaft, Inc.
101 Carley Court
Georgetown, KY 40324
Tel: 502.868.0003
Fax: 502.868.0060
Manufacturer of Crankshafts

Komatsu Canada Ltd.
1725-B Sismet Road
Mississauga, Ontario L4W 1P9
Canada
Tel: 905.625.6292
Fax: 905.625.3036
Web site:www.komatsu.ca
Construction and Heavy Equipment Distributor

Minera San Cristobal
15 Calle EnTorreKetal piso 5
La Paz, Bolivia
Web site:www.minerasancristobal.com

Pacific Summit Energy LLC
4675 MacArthur Court, Suite750
Newport Beach, CA 92660
Tel 949.777.3200
Fax 949.777.3230
Web site:www.pacificsummitenergy.com
Natural Gas and Power Trading and Marketing

Pacific Summit Energy LLC
24 Waterway Avenue
The Woodlands, TX 77380
Tel 281.681.7800
Web site:www.pacificsummitenergy.com
Natural Gas and Power Trading and Marketing

Perennial Power Holdings, Inc.
300 Madison Avenue
New York, NY 10017

Texas Office
24 Waterway Avenue, Suite 740
The Woodlands, TX 77380
Web site:http://www.perennialpower.net/
Owner/Operator of Power Generating Plants

Pipeco Services
20465 State Hwy 249
Suite 200
Houston, TX 77070
Tel: 281-955-3500
Fax: 281-955-3525

Premier Pipe, LLC
15600 JFK Blvd.
Suite 200
Houston, TX 77032
Tel: 832-300-8100
Fax: 832-300-8198

5700 W. Plano Parkway
Suite 1600
Dallas, TX 75093
Tel: 214-369-3973
Fax: 214-369-9399
Web site: http://www.prempipe.com/
Distribution of Pipe

Presidio Ventures, LLC
3979 Freedom Circle, Suite #340
Santa Clara, CA 95054
Tel: (408) 845-9458
Fax: (408) 845-9365
Web site: www.presidio-ventures.com
Investment, Information Technology and Electronic Materials and Equipment

SC Global Tubular Solutions
840 Gessner, Suite 1000
Houston, TX 77024
Tel: 713.653.8400
Fax: 713.658.9246
E-mail:sales@scgts.com

SCOA Residential LLC
c/o Sumitomo Corporation of Americas
300 Madison Avenue
New York, NY 10017
Tel: 212.207.0700
Fax: 212.207.045
Investment in Residential Single Family Houses and Multi-Family Apartment Projects

Servilimina Summit Mexicana S.A. de C.V.
Acceso III, No. 15-A
Fracc. Ind. Benito Juarez
76130 Queretaro, QRO
Mexico
Tel: 011-52-442-218-0863
Fax: 011-52-44-218-1004
Steel Service Center (Processing and Sale of Steel Materials)

SMS International, Inc.
1601 South Two Prudential Plaza
180 North Stetson, Suite 4600
Chicago, IL 60601-6710
Tel: 312.540.5066
Fax: 312.540.5115
Construction Equipment Dealer

Linder Industrial Machinery Co.
1601 South Fontage Road
Plant City, FL 33564
Tel: 813.754.2727
Fax: 813.754.6090
Web site:www.linderco.com
Construction Equipment Dealer

Standard Steel
500 Walnut Street
Burnham, PA 17009
Tel:717.248.4911

SteelSummit-Tennessee (Head Office)
1718 JP Hennessy Drive
LaVergne, TN 37086-3552
Tel: 615.641.3300
Fax: 615.641.3399

SteelSummit-Ohio
11150 Southland Road
Cincinnati, OH 45240-3202
Tel: 513.825.8550
Fax: 513.825.8920

SteelSummit-Mississippi
Vicksmetal Armco Associates
155 Industrial Drive
Vicksburg, MS 39183
Tel: 601.636.1314
Fax: 601.636.1325

SteelSummit-Indiana
150 S. County Road
300 West Frankfort, IN 46041-8781
Tel: 765.659.5555
Fax: 765.659.5500

Sumisho Global Logistics (USA) Corporation
1979 Marcus Avenue, Suite 220
Lake Success, NY 11042
Tel: 516.684.3100
Fax: 516.627.3799
International Intermodal Transport

Sumisho Computer Systems (USA) Inc.
300 Madison Avenue
New York, NY 10017
Tel: 212.207.0700
Fax: 212.207.045
Computer Systems and Parts

Sumitronics USA Inc.
9335 Airway Road, Suite203-C
San Diego, CA 92154
Tel: 619.661.0450
Sale of Electronic Machinery and Parts

Summit Stainless Steel, LLC
Corporate Headquarters and Northeast Region
2001 Elizabeth Street
North Brunswick, NJ 08902
Tel: 800.326.9505 / 732.297.9505
Fax: 732.297.9505
Master Distributor of Stainless Steel Bar, Angle, Plate, Channel, Beams, Pipe, Fittings and Flanges

Summit Stainless Steel, LLC
Mid-Atlantic Region - Charlotte
10708-K Granite Street
Charlotte, NC 28273
Tel: 704.587.9829
Fax: 704.587.0322

Summit Stainless Steel, LLC
Southeast Region - Atlanta
2500 Northlake Drive
Suwanee, GA 30024
Tel: 800.835.5477 / 770.963.9999
Fax: 770.963.1153

Summit Stainless Steel, LLC
South Central Region - Houston
9848 U.S. 90-A
Sugar Land, TX 77478
Tel: 800.922.9018 / 281.242.5151
Fax: 281.247.5111

Summit Stainless Steel, LLC
Mid-West Region - Chicago
290 Madsen Drive
Bloomingdale, IL 60108
Tel: 800.343.9304 / 630-790-8800
Fax: 630.790.1939

Summit Stainless Steel, LLC
West Region - Los Angeles
9838 Geary Avenue
Santa Fe Springs, CA 90670-3238
Tel: 800.536.5454 / 562.802.3330
Fax: 562.802.3332

Summit Stainless Steel, LLC
FloridaRegion -Tampa
6932 US Highway 41
Apollo Beach, FL 33572
Tel: 866.419.9861
Fax: 813.319.9548

Summit Tubulars Corporation
350 7th Ave SW
Calgary, Alberta T2P 3N9
Canada
Tel: 403.232.6066
Fax: 403.266.3911
Tubular Products

TBC Corporation
4300 TCB Way
Palm Beach Gardens, FL 33410
Tel: 561.383.3100
Fax: 561.383.3149
Web site:www.tbccorp.com
Vertically Integrated Marketer of Tires for the Automotive Replacement Market

Treadways Corporation
2000 Campus Lane
East Norriton, PA 19403
Tel: 800.895.1339
Fax: 610.615.8001
Web site:www.treadwayscorp.com
Distributor of After-Market Autotmobile Tires

TOSS WA Corp.
840 Gessner
Suite 1000
Houston, TX 77024
Tel: 713.653.8400
Fax: 713.658.9246
OCTG Supply Chain Management

Tubular Solutions Alaska Inc.
301 K Street
Suite402
Anchorage, AK 99501
Tel:907.770.8700

Unique Machine, LLC
8875 King Street
Anchorage, Alaska 99515
Tel: (907) 563-3012
Fax: (907) 562-1376
WebSite:http://www.umalaska.com
OCTG Supply Chain Management and General Machine Shop Work

V & M Star
4424 West Sam Houston Parkway
Suite150
Houston, TX 77041
Phone: 713-479-3200 or
800-634-6612
Fax: 713-479-3234
Manufacturer of Hot-Rolled Stainless Steel Tubes