Listing of counsel granted disclosure: Oil Country Tubular Goods 5 (OCTG5 2025 IN)

McMillan LLP
2000-45 O’Connor St
Ottawa ON  K1P 1A4

Telephone: 613-232-7171
Fax: 613-231-3191

• Algoma Tubes Inc., Hydril Canadian Company Ltd. and Tenaris Global Services (Canada) Inc. (collectively “Tenaris Canada”)
• SIDERCA S.A.I.C.
• Servicios Generales Tenaris Tamsa, S. A. de C. V.
• Techgen, S.A. de C.V.
• Exiros
• Tenaris Global Services (U.S.A.)
• Tenaris Global Services and Investments S.àr.l. (“TEIL”)
• Tubos de Acero de Mexico S.A. (“TAMSA”)
• Maverick Tube Corporation (“MTLP”)

Cassidy Levy Kent (Canada) LLP
1210-55 Metcalfe St
Ottawa ON  K1P 6L5

Telephone: 613-232-7171
Fax: 613-231-3191

• Welded Tube of Canada Corp.
• Interpro Pipe & Steel, Inc.
• Alberta Tubular Products Ltd.
• Trimark Tubulars Ltd.

Grey, Clark, Shih and Associates, Limited
571 Blair Rd
Ottawa ON  K1J 7M3

Telephone: 613-238-7743
Fax: 613-238-0368

• Cantak Corporation

Bazan Law
161 Medland St
Toronto ON  M6P 2N4

Telephone: 416-766-6050
Fax: 416-352-7461

• Borusan Boru
• IMCO International Steel Trading Inc. (“IMCO”)

RC International Trade Consultants
1423 Laurin Cres
Ottawa ON  K1E 3H2

Telephone: 613-866-6150
Fax: 613-837-1031

• HLD Clark Steel Pipe Co Inc.
• JY Steel Inc.
• Shanghai Minmetals (Hong Kong) Co., Limited

Bennett Jones LLP
One First Canadian Place
3400-100 King St W
PO Box 130
Toronto ON  M5X 1A4

Telephone: 416-863-1200
Fax: 416-863-1716

• Hyundai Steel Pipe Co. Ltd.
• Hyundai Steel Company ("Hyundai Steel")
• POSCO

Craig Logie, Barrister & Solicitor
400-340 King St E
Toronto ON  M5A 1K8

Telephone: 416-572-8529

• United Steelworkers

Osler, Hoskin & Harcourt LLP
1 First Canadian Place
6200-100 King St W
PO Box 50
Toronto ON  M5X 1B8

Telephone : 416-362-2111
Fax : 416-862-6666

• Vallourec Canada Inc.