22
www.lr.org/it T +39 02 365 754 1 E [email protected] Lloyd’s Register Quality Assurance Italy S.r.l. Viale Monza, 265 20126 Milano (MI) Lloyd’s Register Quality Assurance Italy S.r.l. Sede Legale: Piazza della Vittoria, 6 16121 Genova Cap. Soc. Euro 78.000,00 i.v. CCIAA Genova REA 356347 Cod. Fisc. / P.Iva 03568010106 A subsidiary of Lloyd’s Register Group Limited. Lloyd's Register Quality Assurance Limited (Reg. no. 1879370) is a limited company registered in England and Wales. Registered office: 71 Fenchurch Street, London, EC3M 4BS, UK. A member of the Lloyd’s Register Group. To TENARIS S.A. Société Anonyme Holding 13, Rue Beaumont L-1219 Luxembourg k.a. Mr. Giovanni Brembilla Date: 15 July 2020 Subject: Certificate Extension Validity Date We hereby certify the extension of the validity of the following certificates in accordance with IAF ID3: 2011 Management of Extraordinary Events or Circumstances Affecting Abs, CBs, and Certified Organizations Organization name: TENARIS S.A. Société Anonyme Holding Address: 13, Rue Beaumont - L-1219 Luxembourg Client No.: LRC6014676 Assessment standard: OHSAS 18001:2007 Scope of approval: Sales, Product Design and Development, Manufacture and Service Provision of Steel Bars, Steel Tubular Products and Accessories, gas cylinders, threading, coating and end protectors. Manufacture of sucker rods. Reception, storage and processing of ferrous scrap. Service for Management of Civil Construction, Mechanical and Electrical Services; Assembly of Equipment, Piping and Instrumentation Equipment and Industrial Plant. Activities associated with the production of electric power and steam. Certificate number: LRC 6014676/OHS/U/EN/M Expiry date of current certificate: 21 July 2020 New expiry date: 21 January 2021 The renewal visit will be conducted as soon as the emergency related to COVID-19 is overcome and in any case not later than the new expiry date indicated above. Yours sincerely Alberto Melis Technical Manager Lloyd’s Register Quality Assurance Italy S.r.l.

Société Anonyme HoldingMetalmecanica S.A. Ruta Prov. 55 - Km 754.1 (5730) Villa Mercedes, San Luis Argentina Sucker Rods Manufacturing for Oil Industry, Protectors and Accessories:

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Page 1: Société Anonyme HoldingMetalmecanica S.A. Ruta Prov. 55 - Km 754.1 (5730) Villa Mercedes, San Luis Argentina Sucker Rods Manufacturing for Oil Industry, Protectors and Accessories:

www.lr.org/it

T +39 02 365 754 1

E [email protected]

Lloyd’s Register Quality Assurance Italy S.r.l. Viale Monza, 265 20126 Milano (MI)

Lloyd’s Register Quality Assurance Italy S.r.l. – Sede Legale: Piazza della Vittoria, 6 – 16121 Genova Cap. Soc. Euro 78.000,00 i.v. – CCIAA Genova REA 356347 – Cod. Fisc. / P.Iva 03568010106

A subsidiary of Lloyd’s Register Group Limited. Lloyd's Register Quality Assurance Limited (Reg. no. 1879370) is a limited company registered in England and Wales. Registered office: 71 Fenchurch Street, London, EC3M 4BS, UK. A member of the Lloyd’s Register Group.

To TENARIS S.A. Société Anonyme Holding 13, Rue Beaumont L-1219 Luxembourg k.a. Mr. Giovanni Brembilla

Date: 15 July 2020 Subject: Certificate Extension Validity Date We hereby certify the extension of the validity of the following certificates in accordance with IAF ID3: 2011 Management of Extraordinary Events or Circumstances Affecting Abs, CBs, and Certified Organizations Organization name: TENARIS S.A. Société Anonyme Holding Address: 13, Rue Beaumont - L-1219 Luxembourg Client No.: LRC6014676 Assessment standard: OHSAS 18001:2007 Scope of approval: Sales, Product Design and Development, Manufacture and Service Provision of Steel Bars, Steel Tubular Products and Accessories, gas cylinders, threading, coating and end protectors. Manufacture of sucker rods. Reception, storage and processing of ferrous scrap. Service for Management of Civil Construction, Mechanical and Electrical Services; Assembly of Equipment, Piping and Instrumentation Equipment and Industrial Plant. Activities associated with the production of electric power and steam. Certificate number: LRC 6014676/OHS/U/EN/M Expiry date of current certificate: 21 July 2020 New expiry date: 21 January 2021 The renewal visit will be conducted as soon as the emergency related to COVID-19 is overcome and in any case not later than the new expiry date indicated above. Yours sincerely

Alberto Melis Technical Manager Lloyd’s Register Quality Assurance Italy S.r.l.

Page 2: Société Anonyme HoldingMetalmecanica S.A. Ruta Prov. 55 - Km 754.1 (5730) Villa Mercedes, San Luis Argentina Sucker Rods Manufacturing for Oil Industry, Protectors and Accessories:

CERTIFICATE OF APPROVAL

���

This document is subject to the provision below Via Cadorna, 69 20090 Vimodrone (MI)

For and on behalf of 1 Trinity Park, Bickenhill Lane, Birmingham, B37 7ES, - United Kingdom. This approval is carried out in accordance with the LRQA assessment and certification procedures and monitored by LRQA.

The use of the UKAS Accreditation Mark indicates Accreditation in respect of those activities covered by the Accreditation Certificate Number 001

Lloyd’s Register Group Limited, its affiliates and subsidiaries, including Lloyd’s Register Quality Assurance Limited (LRQA), and their respective officers, employees or agents are, individually and collectively, referred to in this clause as ‘Lloyd’s Register’. Lloyd’s Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Lloyd’s Register entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract

This is to certify that the Occupational Health & Safety Management System of:

Tenaris S.A. Société Anonyme Holding

13, Rue Beaumont L-1219 Luxembourg

R.C.S. Luxembourg B-85.203 has been approved by Lloyd's Register Quality Assurance

to the following Standard:

OHSAS 18001:2007

The Occupational Health & Safety Management System is applicable to:

Sales, Product Design and Development, Manufacture and Service Provision of Steel Bars, Steel Tubular Products and Accessories, gas cylinders, threading, coating and end

protectors. Manufacture of sucker rods. Reception, storage and processing of ferrous scrap. Service for Management of Civil Construction, Mechanical and Electrical Services; Assembly of Equipment,

Piping and Instrumentation Equipment and Industrial Plant. Activities associated with the production of electric power and steam.

This certificate is valid only in association with the certificate schedule bearing the same number on which

the locations applicable to this approval are listed.

Approval Certificate Original Approval: 22nd July 2017 No: LRC 6014676/OHS/U/EN/M Current Certificate: 17th December 2019 Certificate Expiry: 21st July 2020

____________________________________________________ Issued by: Lloyd's Register Quality Assurance Italy Srl

for and on behalf of Lloyd's Register Quality Assurance L

Page 3: Société Anonyme HoldingMetalmecanica S.A. Ruta Prov. 55 - Km 754.1 (5730) Villa Mercedes, San Luis Argentina Sucker Rods Manufacturing for Oil Industry, Protectors and Accessories:

CERTIFICATE SCHEDULE

Tenaris S.A. Société Anonyme Holding 13, Rue Beaumont

L-1219 Luxembourg R.C.S. Luxembourg B-85.203

Locations Activities

Approval Certificate Original Approval: 22nd July 2017 No: LRC 6014676/OHS/U/EN/M Current Certificate: 17th December 2019 Certificate Expiry: 21st July 2020

Page 1 of 20

����

This document is subject to the provision below Via Cadorna, 69 20090 Vimodrone (MI)

For and on behalf of 1 Trinity Park, Bickenhill Lane, Birmingham, B37 7ES, - United Kingdom. This approval is carried out in accordance with the LRQA assessment and certification procedures and monitored by LRQA.

The use of the UKAS Accreditation Mark indicates Accreditation in respect of those activities covered by the Accreditation Certificate Number 001

Lloyd’s Register Group Limited, its affiliates and subsidiaries, including Lloyd’s Register Quality Assurance Limited (LRQA), and their respective officers, employees or agents are, individually and collectively, referred to in this clause as ‘Lloyd’s Register’. Lloyd’s Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Lloyd’s Register entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract

Tenaris Siderca (Siderca S.A.I.C.) Dr. Simini 250 (2804) Campana, Buenos Aires Argentina

Manufacture, of steel round bar seamless hot rolled and cold drawn tubular steel products and accessories. Provision of services associated to these products.

LRC 6014676/OHS/U/EN/M/001 Tenaris Metalmecanica S.A. Ruta Prov. 55 - Km 754.1 (5730) Villa Mercedes, San Luis Argentina

Sucker Rods Manufacturing for Oil Industry, Protectors and Accessories: Couplings, Nipples, Cemented Pipes and Pony Rods.

LRC 6014676/OHS/U/EN/M/002

Tenaris Metalmecánica S.A. Ruta Nac. 7, Km 701 (5730) Villa Mercedes, San Luis Argentina

Sucker Rods Manufacturing for Oil Industry and Accessories: Couplings.

LRC 6014676/OHS/U/EN/M/003

Page 4: Société Anonyme HoldingMetalmecanica S.A. Ruta Prov. 55 - Km 754.1 (5730) Villa Mercedes, San Luis Argentina Sucker Rods Manufacturing for Oil Industry, Protectors and Accessories:

CERTIFICATE SCHEDULE

Tenaris S.A. Société Anonyme Holding 13, Rue Beaumont

L-1219 Luxembourg R.C.S. Luxembourg B-85.203

Locations Activities

Approval Certificate Original Approval: 22nd July 2017 No: LRC 6014676/OHS/U/EN/M Current Certificate: 17th December 2019 Certificate Expiry: 21st July 2020

Page 2 of 20

����

This document is subject to the provision below Via Cadorna, 69 20090 Vimodrone (MI)

For and on behalf of 1 Trinity Park, Bickenhill Lane, Birmingham, B37 7ES, - United Kingdom. This approval is carried out in accordance with the LRQA assessment and certification procedures and monitored by LRQA.

The use of the UKAS Accreditation Mark indicates Accreditation in respect of those activities covered by the Accreditation Certificate Number 001

Lloyd’s Register Group Limited, its affiliates and subsidiaries, including Lloyd’s Register Quality Assurance Limited (LRQA), and their respective officers, employees or agents are, individually and collectively, referred to in this clause as ‘Lloyd’s Register’. Lloyd’s Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Lloyd’s Register entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract

Tenaris Metalmecánica S.A. Ruta Prov. 24, Km 7.5 (5730) Villa Mercedes, San Luis Argentina

Manufacturing of Cemented Pipes. LRC 6014676/OHS/U/EN/M/004

TENARIS - SCRAP SERVICE S.A. Ruta 6 km 203,436 Campana Provincia de Buenos Aires Argentina

Reception, Storage, Processing and Dispatch of Ferrous Scrap.

LRC 6014676/OHS/U/EN/M/006

Page 5: Société Anonyme HoldingMetalmecanica S.A. Ruta Prov. 55 - Km 754.1 (5730) Villa Mercedes, San Luis Argentina Sucker Rods Manufacturing for Oil Industry, Protectors and Accessories:

CERTIFICATE SCHEDULE

Tenaris S.A. Société Anonyme Holding 13, Rue Beaumont

L-1219 Luxembourg R.C.S. Luxembourg B-85.203

Locations Activities

Approval Certificate Original Approval: 22nd July 2017 No: LRC 6014676/OHS/U/EN/M Current Certificate: 17th December 2019 Certificate Expiry: 21st July 2020

Page 3 of 20

����

This document is subject to the provision below Via Cadorna, 69 20090 Vimodrone (MI)

For and on behalf of 1 Trinity Park, Bickenhill Lane, Birmingham, B37 7ES, - United Kingdom. This approval is carried out in accordance with the LRQA assessment and certification procedures and monitored by LRQA.

The use of the UKAS Accreditation Mark indicates Accreditation in respect of those activities covered by the Accreditation Certificate Number 001

Lloyd’s Register Group Limited, its affiliates and subsidiaries, including Lloyd’s Register Quality Assurance Limited (LRQA), and their respective officers, employees or agents are, individually and collectively, referred to in this clause as ‘Lloyd’s Register’. Lloyd’s Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Lloyd’s Register entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract

Tenaris SCRAP SERVICE S.A. Ruta de la Tradición 7424 (7424) Esteban Echeverría, Buenos Aires Argentina

Reception, Storage, Processing and Dispatch of Ferrous Scrap.

LRC 6014676/OHS/U/EN/M/007

Tenaris SCRAP SERVICE S.A. Avda. General Savio 4655 (5014) Córdoba, Córdoba Argentina

Reception, Storage, Processing and Dispatch of Ferrous Scrap.

LRC 6014676/OHS/U/EN/M/008

Tenaris SCRAP SERVICE S.A. Ruta 8 Km 18 4846 (1650) San Martín, Buenos Aires Argentina

Reception, Storage, Processing and Dispatch of Ferrous Scrap.

LRC 6014676/OHS/U/EN/M/009

Page 6: Société Anonyme HoldingMetalmecanica S.A. Ruta Prov. 55 - Km 754.1 (5730) Villa Mercedes, San Luis Argentina Sucker Rods Manufacturing for Oil Industry, Protectors and Accessories:

CERTIFICATE SCHEDULE

Tenaris S.A. Société Anonyme Holding 13, Rue Beaumont

L-1219 Luxembourg R.C.S. Luxembourg B-85.203

Locations Activities

Approval Certificate Original Approval: 22nd July 2017 No: LRC 6014676/OHS/U/EN/M Current Certificate: 17th December 2019 Certificate Expiry: 21st July 2020

Page 4 of 20

����

This document is subject to the provision below Via Cadorna, 69 20090 Vimodrone (MI)

For and on behalf of 1 Trinity Park, Bickenhill Lane, Birmingham, B37 7ES, - United Kingdom. This approval is carried out in accordance with the LRQA assessment and certification procedures and monitored by LRQA.

The use of the UKAS Accreditation Mark indicates Accreditation in respect of those activities covered by the Accreditation Certificate Number 001

Lloyd’s Register Group Limited, its affiliates and subsidiaries, including Lloyd’s Register Quality Assurance Limited (LRQA), and their respective officers, employees or agents are, individually and collectively, referred to in this clause as ‘Lloyd’s Register’. Lloyd’s Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Lloyd’s Register entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract

Tenaris Confab Industrial S.A. Av. Gastao Vidigal Neto 475 (12414-020) Cidade Nova Pindamonhangaba, São Paulo Brazil

Manufacture and service provision of welded carbon and micro alloyed steel tubes coated and uncoated and structural tubes. Storage and distribution of pipes and supply services of inspections of pipes.

LRC 6014676/OHS/U/EN/M/010

Tenaris Confab Montagens Ltda. Rua Dr. Gonzaga, s/n (12440-200) Moreira Cesar Pindamonhangaba, São Paulo Brazil

Service for Management of Civil Construction, Mechanical and Electrical Services; Assembly of Equipment, Piping and Instrumentation Equipment and Industrial Plant.

LRC 6014676/OHS/U/EN/M/011

Page 7: Société Anonyme HoldingMetalmecanica S.A. Ruta Prov. 55 - Km 754.1 (5730) Villa Mercedes, San Luis Argentina Sucker Rods Manufacturing for Oil Industry, Protectors and Accessories:

CERTIFICATE SCHEDULE

Tenaris S.A. Société Anonyme Holding 13, Rue Beaumont

L-1219 Luxembourg R.C.S. Luxembourg B-85.203

Locations Activities

Approval Certificate Original Approval: 22nd July 2017 No: LRC 6014676/OHS/U/EN/M Current Certificate: 17th December 2019 Certificate Expiry: 21st July 2020

Page 5 of 20

����

This document is subject to the provision below Via Cadorna, 69 20090 Vimodrone (MI)

For and on behalf of 1 Trinity Park, Bickenhill Lane, Birmingham, B37 7ES, - United Kingdom. This approval is carried out in accordance with the LRQA assessment and certification procedures and monitored by LRQA.

The use of the UKAS Accreditation Mark indicates Accreditation in respect of those activities covered by the Accreditation Certificate Number 001

Lloyd’s Register Group Limited, its affiliates and subsidiaries, including Lloyd’s Register Quality Assurance Limited (LRQA), and their respective officers, employees or agents are, individually and collectively, referred to in this clause as ‘Lloyd’s Register’. Lloyd’s Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Lloyd’s Register entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract

Tenaris Confab Industrial S.A. Rio das Ostras Rua do Sondador s/n – Quadra H Lote 10 E 11 Zona Especial de Negocios Rio das Ostras CEP 28890-000 Rio de Janeiro, Brazil

Inspection, Storage and Distribution of pipes. LRC 6014676/OHS/U/EN/M/012

Tenaris Confab Industrial S.A - Negocio Equipamentos Rua Dr. Gonzaga, s/n (12440-200) Moreira Cesar Pindamonhangaba, São Paulo Brazil

Design and Manufacture of Equipment for Petroleum, Petrochemical, Pulp and Paper, Power, Metallurgy and Mining such as: Pressure Vessels, Reactors, Process Towers, Boilers, Heat Exchangers, Evaporators, Fired Heaters, Blast Furnaces and Steel Converter. Management of Assembly Services.

LRC 6014676/OHS/U/EN/M/013

Page 8: Société Anonyme HoldingMetalmecanica S.A. Ruta Prov. 55 - Km 754.1 (5730) Villa Mercedes, San Luis Argentina Sucker Rods Manufacturing for Oil Industry, Protectors and Accessories:

CERTIFICATE SCHEDULE

Tenaris S.A. Société Anonyme Holding 13, Rue Beaumont

L-1219 Luxembourg R.C.S. Luxembourg B-85.203

Locations Activities

Approval Certificate Original Approval: 22nd July 2017 No: LRC 6014676/OHS/U/EN/M Current Certificate: 17th December 2019 Certificate Expiry: 21st July 2020

Page 6 of 20

����

This document is subject to the provision below Via Cadorna, 69 20090 Vimodrone (MI)

For and on behalf of 1 Trinity Park, Bickenhill Lane, Birmingham, B37 7ES, - United Kingdom. This approval is carried out in accordance with the LRQA assessment and certification procedures and monitored by LRQA.

The use of the UKAS Accreditation Mark indicates Accreditation in respect of those activities covered by the Accreditation Certificate Number 001

Lloyd’s Register Group Limited, its affiliates and subsidiaries, including Lloyd’s Register Quality Assurance Limited (LRQA), and their respective officers, employees or agents are, individually and collectively, referred to in this clause as ‘Lloyd’s Register’. Lloyd’s Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Lloyd’s Register entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract

Tenaris Confab Hastes de Bombeio S.A. Rua Dr. Gonzaga, s/n (12440-200) Moreira Cesar Pindamonhangaba, São Paulo Brazil

Manufacture and technical support services for steel sucker rods and accessories, polished rods, sucker rods guides and sinker bars.

LRC 6014676/OHS/U/EN/M/046

Tenaris Tamsa (Tubos de Acero de México S.A.) Carretera México - Veracruz Vía Xalapa Km. 433.7 (91697) Veracruz, Veracruz México

Manufacture and Service Provision of Steel Bars, Hot Rolled and Cold Drawn, Steel Tubular Products and Accessories, Couplings, Sub-couplings, Protectors, Sucker Rods and Sucker Rods guides.

LRC 6014676/OHS/U/EN/M/014

Page 9: Société Anonyme HoldingMetalmecanica S.A. Ruta Prov. 55 - Km 754.1 (5730) Villa Mercedes, San Luis Argentina Sucker Rods Manufacturing for Oil Industry, Protectors and Accessories:

CERTIFICATE SCHEDULE

Tenaris S.A. Société Anonyme Holding 13, Rue Beaumont

L-1219 Luxembourg R.C.S. Luxembourg B-85.203

Locations Activities

Approval Certificate Original Approval: 22nd July 2017 No: LRC 6014676/OHS/U/EN/M Current Certificate: 17th December 2019 Certificate Expiry: 21st July 2020

Page 7 of 20

����

This document is subject to the provision below Via Cadorna, 69 20090 Vimodrone (MI)

For and on behalf of 1 Trinity Park, Bickenhill Lane, Birmingham, B37 7ES, - United Kingdom. This approval is carried out in accordance with the LRQA assessment and certification procedures and monitored by LRQA.

The use of the UKAS Accreditation Mark indicates Accreditation in respect of those activities covered by the Accreditation Certificate Number 001

Lloyd’s Register Group Limited, its affiliates and subsidiaries, including Lloyd’s Register Quality Assurance Limited (LRQA), and their respective officers, employees or agents are, individually and collectively, referred to in this clause as ‘Lloyd’s Register’. Lloyd’s Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Lloyd’s Register entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract

Tenaris Tamsa (Tubos de Acero de México S.A.) Division Conexiones Carretera Monterrey – Laredo Km 24.2 (65550) Ciénega de Flores, Nuevo León México.

Manufacture and sales of seamless butt-weld fittings in carbon and alloy steel.

LRC 6014676/OHS/U/EN/M/015

Tenaris Tamsa (Tubos de Acero de México S.A.) (Coatzintla) Carretera Coatzintla – Palma Sola, Km 61.1 Poblacion “La Laja” (93160) Poza Rica , Veracruz Mexico

Storage yards and field services building. LRC 6014676/OHS/U/EN/M/016

Page 10: Société Anonyme HoldingMetalmecanica S.A. Ruta Prov. 55 - Km 754.1 (5730) Villa Mercedes, San Luis Argentina Sucker Rods Manufacturing for Oil Industry, Protectors and Accessories:

CERTIFICATE SCHEDULE

Tenaris S.A. Société Anonyme Holding 13, Rue Beaumont

L-1219 Luxembourg R.C.S. Luxembourg B-85.203

Locations Activities

Approval Certificate Original Approval: 22nd July 2017 No: LRC 6014676/OHS/U/EN/M Current Certificate: 17th December 2019 Certificate Expiry: 21st July 2020

Page 8 of 20

����

This document is subject to the provision below Via Cadorna, 69 20090 Vimodrone (MI)

For and on behalf of 1 Trinity Park, Bickenhill Lane, Birmingham, B37 7ES, - United Kingdom. This approval is carried out in accordance with the LRQA assessment and certification procedures and monitored by LRQA.

The use of the UKAS Accreditation Mark indicates Accreditation in respect of those activities covered by the Accreditation Certificate Number 001

Lloyd’s Register Group Limited, its affiliates and subsidiaries, including Lloyd’s Register Quality Assurance Limited (LRQA), and their respective officers, employees or agents are, individually and collectively, referred to in this clause as ‘Lloyd’s Register’. Lloyd’s Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Lloyd’s Register entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract

Tenaris Tamsa (Tubos de Acero de México S.A.) (Comalcalco) Km 150 Carretera Cárdenas- Comalcalco. Ranchería Oriente, 5 sección Col. Centro (86650) Comalcalco, Tabasco Mexico

Storage yards and field services building. LRC 6014676/OHS/U/EN/M/017

Tenaris Tubocaribe Ltda Parque Industrial Carlos Velez Pombo KM 1 Via Turbaco Cartagena, Bolivar Colombia

Manufacture of welded steel line pipe, casing and tubing. Electro metallic and processing of tubular products. Application of single and multilayer coatings.

LRC 6014676/OHS/U/EN/M/018

Page 11: Société Anonyme HoldingMetalmecanica S.A. Ruta Prov. 55 - Km 754.1 (5730) Villa Mercedes, San Luis Argentina Sucker Rods Manufacturing for Oil Industry, Protectors and Accessories:

CERTIFICATE SCHEDULE

Tenaris S.A. Société Anonyme Holding 13, Rue Beaumont

L-1219 Luxembourg R.C.S. Luxembourg B-85.203

Locations Activities

Approval Certificate Original Approval: 22nd July 2017 No: LRC 6014676/OHS/U/EN/M Current Certificate: 17th December 2019 Certificate Expiry: 21st July 2020

Page 9 of 20

����

This document is subject to the provision below Via Cadorna, 69 20090 Vimodrone (MI)

For and on behalf of 1 Trinity Park, Bickenhill Lane, Birmingham, B37 7ES, - United Kingdom. This approval is carried out in accordance with the LRQA assessment and certification procedures and monitored by LRQA.

The use of the UKAS Accreditation Mark indicates Accreditation in respect of those activities covered by the Accreditation Certificate Number 001

Lloyd’s Register Group Limited, its affiliates and subsidiaries, including Lloyd’s Register Quality Assurance Limited (LRQA), and their respective officers, employees or agents are, individually and collectively, referred to in this clause as ‘Lloyd’s Register’. Lloyd’s Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Lloyd’s Register entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract

Tenaris Hickman (Maverick Tube Corporation) 5010 North County Road 967 Blytheville, AR 72315 USA

Manufacture of welded pipes (OCTG and Line Pipe), and externally coated line pipe.

LRC 6014676/OHS/U/EN/M/019

Tenaris Downhole Center (Tenaris Coiled Tubes, LLC) 8615 East Sam Houston Parkway Houston, TX 77044 USA

Manufacture and Service of Coiled Tubing for the Oil and Gas Industry.

LRC 6014676/OHS/U/EN/M/020

Tenaris McCarty (Hydril Company) 302 McCarty Drive Houston, TX 77029 USA

Threading and Surface Coating of Casing and Tubing Steel Pipes and Accessories. Sales and Storage of Tubular Product and Accessories.

LRC 6014676/OHS/U/EN/M/021

Page 12: Société Anonyme HoldingMetalmecanica S.A. Ruta Prov. 55 - Km 754.1 (5730) Villa Mercedes, San Luis Argentina Sucker Rods Manufacturing for Oil Industry, Protectors and Accessories:

CERTIFICATE SCHEDULE

Tenaris S.A. Société Anonyme Holding 13, Rue Beaumont

L-1219 Luxembourg R.C.S. Luxembourg B-85.203

Locations Activities

Approval Certificate Original Approval: 22nd July 2017 No: LRC 6014676/OHS/U/EN/M Current Certificate: 17th December 2019 Certificate Expiry: 21st July 2020

Page 10 of 20

����

This document is subject to the provision below Via Cadorna, 69 20090 Vimodrone (MI)

For and on behalf of 1 Trinity Park, Bickenhill Lane, Birmingham, B37 7ES, - United Kingdom. This approval is carried out in accordance with the LRQA assessment and certification procedures and monitored by LRQA.

The use of the UKAS Accreditation Mark indicates Accreditation in respect of those activities covered by the Accreditation Certificate Number 001

Lloyd’s Register Group Limited, its affiliates and subsidiaries, including Lloyd’s Register Quality Assurance Limited (LRQA), and their respective officers, employees or agents are, individually and collectively, referred to in this clause as ‘Lloyd’s Register’. Lloyd’s Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Lloyd’s Register entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract

Tenaris Bakersfield (Hydril Company) 3237 Patton Way Bakersfield, CA 93308-5717 USA

Threading of casing and tubing steel pipes and accessories; sales, service provision and storage of tubular products and accessories.

LRC 6014676/OHS/U/EN/M/022

Tenaris Bay City (Tenaris Bay City Inc.) 7960 SH-35 Bay City, TX 77414 USA

Manufacture and Service provision of hot rolled seamless steel tubular products.

LRC 6014676/OHS/U/EN/M/023

Tenaris Conroe (Maverick Tube Corporation) 699 FM 3083, Conroe, TX, 77301, United States

Manufacture of Welded Line Pipe, Casing and Tubing.

LRC 6014676/OHS/U/EN/M/049

Page 13: Société Anonyme HoldingMetalmecanica S.A. Ruta Prov. 55 - Km 754.1 (5730) Villa Mercedes, San Luis Argentina Sucker Rods Manufacturing for Oil Industry, Protectors and Accessories:

CERTIFICATE SCHEDULE

Tenaris S.A. Société Anonyme Holding 13, Rue Beaumont

L-1219 Luxembourg R.C.S. Luxembourg B-85.203

Locations Activities

Approval Certificate Original Approval: 22nd July 2017 No: LRC 6014676/OHS/U/EN/M Current Certificate: 17th December 2019 Certificate Expiry: 21st July 2020

Page 11 of 20

����

This document is subject to the provision below Via Cadorna, 69 20090 Vimodrone (MI)

For and on behalf of 1 Trinity Park, Bickenhill Lane, Birmingham, B37 7ES, - United Kingdom. This approval is carried out in accordance with the LRQA assessment and certification procedures and monitored by LRQA.

The use of the UKAS Accreditation Mark indicates Accreditation in respect of those activities covered by the Accreditation Certificate Number 001

Lloyd’s Register Group Limited, its affiliates and subsidiaries, including Lloyd’s Register Quality Assurance Limited (LRQA), and their respective officers, employees or agents are, individually and collectively, referred to in this clause as ‘Lloyd’s Register’. Lloyd’s Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Lloyd’s Register entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract

Tenaris AlgomaTubes Inc. 547 Wallace Terrace, Sault Ste. Marie, Ontario, P6C 1L9 Canada

Manufacture of Hot Rolled Seamless Steel Pipe including Heat Treatment and Threading of Tubular Products.

LRC 6014676/OHS/U/EN/M/024

Tenaris Prudential (Prudential Steel ULC) 8919 Barlow Trail SE Calgary, Alberta T2C 2N7 Canada

Manufacture of welded line pipe, casing and tubing.

LRC 6014676/OHS/U/EN/M/047

Tenaris Nisku (Hydril Canadian Company Limited Partnership) 2307 8th Street Nisku, Alberta, T9E 7Z3 Canada

Manufacture of Premium Connections, Accessories and Couplings for the Oil and Gas Industry.

LRC 6014676/OHS/U/EN/M/025

Page 14: Société Anonyme HoldingMetalmecanica S.A. Ruta Prov. 55 - Km 754.1 (5730) Villa Mercedes, San Luis Argentina Sucker Rods Manufacturing for Oil Industry, Protectors and Accessories:

CERTIFICATE SCHEDULE

Tenaris S.A. Société Anonyme Holding 13, Rue Beaumont

L-1219 Luxembourg R.C.S. Luxembourg B-85.203

Locations Activities

Approval Certificate Original Approval: 22nd July 2017 No: LRC 6014676/OHS/U/EN/M Current Certificate: 17th December 2019 Certificate Expiry: 21st July 2020

Page 12 of 20

����

This document is subject to the provision below Via Cadorna, 69 20090 Vimodrone (MI)

For and on behalf of 1 Trinity Park, Bickenhill Lane, Birmingham, B37 7ES, - United Kingdom. This approval is carried out in accordance with the LRQA assessment and certification procedures and monitored by LRQA.

The use of the UKAS Accreditation Mark indicates Accreditation in respect of those activities covered by the Accreditation Certificate Number 001

Lloyd’s Register Group Limited, its affiliates and subsidiaries, including Lloyd’s Register Quality Assurance Limited (LRQA), and their respective officers, employees or agents are, individually and collectively, referred to in this clause as ‘Lloyd’s Register’. Lloyd’s Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Lloyd’s Register entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract

Tenaris Dalmine (Dalmine S.p.A.) Piazza Caduti 6 Luglio 1944, 1 24044 Dalmine, Bergamo Italy

Manufacture, sales of seamless steel hot rolled products, bars and accessories, logistic services and power plant generation. Receipt, storage and Recovery of ferrous scrap, temporary storage of industrial hazardous waste.

LRC 6014676/OHS/U/EN/M/026

Tenaris Sabbio Bergamasco (Dalmine S.p.A.) Via Levate, 2 24044 Sabbio Bergamasco, Bergamo Italy

Design, manufacture and sale of steel gas cylinders and logistic services.

LRC 6014676/OHS/U/EN/M/027

Tenaris Piombino (Dalmine S.p.A.) Località Ischia di Crociano 57025 Piombino, Livorno Italy

Manufacturing of welded steel tubes, coated and uncoated and logistic services.

LRC 6014676/OHS/U/EN/M/028

Page 15: Société Anonyme HoldingMetalmecanica S.A. Ruta Prov. 55 - Km 754.1 (5730) Villa Mercedes, San Luis Argentina Sucker Rods Manufacturing for Oil Industry, Protectors and Accessories:

CERTIFICATE SCHEDULE

Tenaris S.A. Société Anonyme Holding 13, Rue Beaumont

L-1219 Luxembourg R.C.S. Luxembourg B-85.203

Locations Activities

Approval Certificate Original Approval: 22nd July 2017 No: LRC 6014676/OHS/U/EN/M Current Certificate: 17th December 2019 Certificate Expiry: 21st July 2020

Page 13 of 20

����

This document is subject to the provision below Via Cadorna, 69 20090 Vimodrone (MI)

For and on behalf of 1 Trinity Park, Bickenhill Lane, Birmingham, B37 7ES, - United Kingdom. This approval is carried out in accordance with the LRQA assessment and certification procedures and monitored by LRQA.

The use of the UKAS Accreditation Mark indicates Accreditation in respect of those activities covered by the Accreditation Certificate Number 001

Lloyd’s Register Group Limited, its affiliates and subsidiaries, including Lloyd’s Register Quality Assurance Limited (LRQA), and their respective officers, employees or agents are, individually and collectively, referred to in this clause as ‘Lloyd’s Register’. Lloyd’s Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Lloyd’s Register entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract

Tenaris Arcore (Dalmine S.p.A.) Manufacturing Center Via A. Grandi, 100 20862 Arcore, Monza e della Brianza Italy

Manufacturing of hot rolled steel seamless tubes and logistic services.

LRC 6014676/OHS/U/EN/M/029

Tenaris Costa Volpino (Dalmine S.p.A) Via Piò, 30 24062 Costa Volpino, Bergamo Italy

Manufacturing of cold drawn steel tubes and tubular parts and logistic services. Temporary storage of industrial hazardous waste.

LRC 6014676/OHS/U/EN/M/030

Page 16: Société Anonyme HoldingMetalmecanica S.A. Ruta Prov. 55 - Km 754.1 (5730) Villa Mercedes, San Luis Argentina Sucker Rods Manufacturing for Oil Industry, Protectors and Accessories:

CERTIFICATE SCHEDULE

Tenaris S.A. Société Anonyme Holding 13, Rue Beaumont

L-1219 Luxembourg R.C.S. Luxembourg B-85.203

Locations Activities

Approval Certificate Original Approval: 22nd July 2017 No: LRC 6014676/OHS/U/EN/M Current Certificate: 17th December 2019 Certificate Expiry: 21st July 2020

Page 14 of 20

����

This document is subject to the provision below Via Cadorna, 69 20090 Vimodrone (MI)

For and on behalf of 1 Trinity Park, Bickenhill Lane, Birmingham, B37 7ES, - United Kingdom. This approval is carried out in accordance with the LRQA assessment and certification procedures and monitored by LRQA.

The use of the UKAS Accreditation Mark indicates Accreditation in respect of those activities covered by the Accreditation Certificate Number 001

Lloyd’s Register Group Limited, its affiliates and subsidiaries, including Lloyd’s Register Quality Assurance Limited (LRQA), and their respective officers, employees or agents are, individually and collectively, referred to in this clause as ‘Lloyd’s Register’. Lloyd’s Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Lloyd’s Register entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract

Tenaris Dalmine OCTG Accesories Center (Dalmine S.p.A.) Via Friuli, 7/B 24044 Dalmine, Bergamo ItalyItaly

Mechanical machining of pipes, manufacture of special parts and logistics services.

LRC 6014676/OHS/U/EN/M/031

Tenaris Silcotub (S.C. Silcotub S.A.) 93 Mihai Viteazu Blv 450131 Zalau, Salaj County Romania

Manufacture, sales, storage and services provision of seamless steel hot rolled and cold drawn tubular products and accessories.

LRC 6014676/OHS/U/EN/M/032

Tenaris Calarasi (S.C. Silcotub S.A.) 62 Prelungirea Bucuresti Road 910153 Calarasi, Calarasi County Romania

Manufacture and sales of continuously cast steel bars, for pipes production, profiles and for other steel products.

LRC 6014676/OHS/U/EN/M/033

Page 17: Société Anonyme HoldingMetalmecanica S.A. Ruta Prov. 55 - Km 754.1 (5730) Villa Mercedes, San Luis Argentina Sucker Rods Manufacturing for Oil Industry, Protectors and Accessories:

CERTIFICATE SCHEDULE

Tenaris S.A. Société Anonyme Holding 13, Rue Beaumont

L-1219 Luxembourg R.C.S. Luxembourg B-85.203

Locations Activities

Approval Certificate Original Approval: 22nd July 2017 No: LRC 6014676/OHS/U/EN/M Current Certificate: 17th December 2019 Certificate Expiry: 21st July 2020

Page 15 of 20

����

This document is subject to the provision below Via Cadorna, 69 20090 Vimodrone (MI)

For and on behalf of 1 Trinity Park, Bickenhill Lane, Birmingham, B37 7ES, - United Kingdom. This approval is carried out in accordance with the LRQA assessment and certification procedures and monitored by LRQA.

The use of the UKAS Accreditation Mark indicates Accreditation in respect of those activities covered by the Accreditation Certificate Number 001

Lloyd’s Register Group Limited, its affiliates and subsidiaries, including Lloyd’s Register Quality Assurance Limited (LRQA), and their respective officers, employees or agents are, individually and collectively, referred to in this clause as ‘Lloyd’s Register’. Lloyd’s Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Lloyd’s Register entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract

Tenaris Campina Sucker Rods (S.C. Silcotub S.A.) 1 Orizontului Street 105600, Campina, Prahova County Romania

Manufacture, sales, storage and service provision of sucker rods and accessories.

LRC 6014676/OHS/U/EN/M/034

Tenaris Ploiesti (S.C. Silcotub S.A.) Targoviste Road, Km. 8 100213 Industrial Park Ploiesti Prahova County Romania

Storage and sales of seamless steel hot rolled tubular products, accessories and services provision.

LRC 6014676/OHS/U/EN/M/035

Tenaris Popesti (S.C. Silcotub S.A.) 91 Soseaua de Centura Popesti Leordeni,Ilfov County Romania

Collection and storage of scrap. LRC 6014676/OHS/U/EN/M/036

Page 18: Société Anonyme HoldingMetalmecanica S.A. Ruta Prov. 55 - Km 754.1 (5730) Villa Mercedes, San Luis Argentina Sucker Rods Manufacturing for Oil Industry, Protectors and Accessories:

CERTIFICATE SCHEDULE

Tenaris S.A. Société Anonyme Holding 13, Rue Beaumont

L-1219 Luxembourg R.C.S. Luxembourg B-85.203

Locations Activities

Approval Certificate Original Approval: 22nd July 2017 No: LRC 6014676/OHS/U/EN/M Current Certificate: 17th December 2019 Certificate Expiry: 21st July 2020

Page 16 of 20

����

This document is subject to the provision below Via Cadorna, 69 20090 Vimodrone (MI)

For and on behalf of 1 Trinity Park, Bickenhill Lane, Birmingham, B37 7ES, - United Kingdom. This approval is carried out in accordance with the LRQA assessment and certification procedures and monitored by LRQA.

The use of the UKAS Accreditation Mark indicates Accreditation in respect of those activities covered by the Accreditation Certificate Number 001

Lloyd’s Register Group Limited, its affiliates and subsidiaries, including Lloyd’s Register Quality Assurance Limited (LRQA), and their respective officers, employees or agents are, individually and collectively, referred to in this clause as ‘Lloyd’s Register’. Lloyd’s Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Lloyd’s Register entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract

Tenaris Global Services (UK) Limited Minto Avenue, Altens Industrial Estate Aberdeen, AB123JZ Scotland U.K.

Processing and threading of steel tubular products (casing tubing line pipe and accessories), sales service provision and storage of tubular products and accessories.

LRC 6014676/OHS/U/EN/M/037

Tenaris Badentoy (Tenaris Global Services (UK) Limited) Badentoy Industrial Estate, Portlethen - Aberdeen, AB12 4YD, United Kingdom

Service provision and storage of steel tubular products and accessories.

LRC 6014676/OHS/U/EN/M/051

Tenaris Denmark Måde Industrivej 38 DK-6705 Esbjerg Ø Denmark

Processing and threading of steel tubular products (casing tubing line pipe and accessories), sales service provision and storage of tubular products and accessories.

LRC 6014676/OHS/U/EN/M/038

Page 19: Société Anonyme HoldingMetalmecanica S.A. Ruta Prov. 55 - Km 754.1 (5730) Villa Mercedes, San Luis Argentina Sucker Rods Manufacturing for Oil Industry, Protectors and Accessories:

CERTIFICATE SCHEDULE

Tenaris S.A. Société Anonyme Holding 13, Rue Beaumont

L-1219 Luxembourg R.C.S. Luxembourg B-85.203

Locations Activities

Approval Certificate Original Approval: 22nd July 2017 No: LRC 6014676/OHS/U/EN/M Current Certificate: 17th December 2019 Certificate Expiry: 21st July 2020

Page 17 of 20

����

This document is subject to the provision below Via Cadorna, 69 20090 Vimodrone (MI)

For and on behalf of 1 Trinity Park, Bickenhill Lane, Birmingham, B37 7ES, - United Kingdom. This approval is carried out in accordance with the LRQA assessment and certification procedures and monitored by LRQA.

The use of the UKAS Accreditation Mark indicates Accreditation in respect of those activities covered by the Accreditation Certificate Number 001

Lloyd’s Register Group Limited, its affiliates and subsidiaries, including Lloyd’s Register Quality Assurance Limited (LRQA), and their respective officers, employees or agents are, individually and collectively, referred to in this clause as ‘Lloyd’s Register’. Lloyd’s Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Lloyd’s Register entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract

Tenaris SPIJ (PT. Seamless Pipe Indonesia Jaya) Krakatau Industrial Estate Cilegon Banten Jl. Antartika I Kav. F4 42443 Cilegon Indonesia

Processing and threading of tubular products (casing, tubing, seamless line pipe) and accessories, service and storage provision of tubular products and accessories.

LRC 6014676/OHS/U/EN/M/039

Tenaris Batam (PT Hydril Indonesia) Kabil Industrial Estate, JI. Hang Kesturi 1 Kav 23 & 24, Kabil Batam Riau Islands 29467 Indonesia

Threading of casing and tubing steel pipes and accessories; sales, service provision and storage of tubular products and accessories.

LRC 6014676/OHS/U/EN/M/040

Tenaris Qingdao (Steel Pipes Ltd) No.2001, Kunlun Shan South Road Eco & Tech Development Zone, Qingdao City PR China

Processing and threading, sales, technical and integrated Supply Chain management service provision of steel tubular products and accessories.

LRC 6014676/OHS/U/EN/M/041

Page 20: Société Anonyme HoldingMetalmecanica S.A. Ruta Prov. 55 - Km 754.1 (5730) Villa Mercedes, San Luis Argentina Sucker Rods Manufacturing for Oil Industry, Protectors and Accessories:

CERTIFICATE SCHEDULE

Tenaris S.A. Société Anonyme Holding 13, Rue Beaumont

L-1219 Luxembourg R.C.S. Luxembourg B-85.203

Locations Activities

Approval Certificate Original Approval: 22nd July 2017 No: LRC 6014676/OHS/U/EN/M Current Certificate: 17th December 2019 Certificate Expiry: 21st July 2020

Page 18 of 20

����

This document is subject to the provision below Via Cadorna, 69 20090 Vimodrone (MI)

For and on behalf of 1 Trinity Park, Bickenhill Lane, Birmingham, B37 7ES, - United Kingdom. This approval is carried out in accordance with the LRQA assessment and certification procedures and monitored by LRQA.

The use of the UKAS Accreditation Mark indicates Accreditation in respect of those activities covered by the Accreditation Certificate Number 001

Lloyd’s Register Group Limited, its affiliates and subsidiaries, including Lloyd’s Register Quality Assurance Limited (LRQA), and their respective officers, employees or agents are, individually and collectively, referred to in this clause as ‘Lloyd’s Register’. Lloyd’s Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Lloyd’s Register entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract

Tenaris Tenaris Saudi Arabia Ltd 2nd Industrial City - PO BOX 12441 Damman 31473 - Eastern Province Saudi Arabia

Processing and threading of tubular products (casing, tubing, seamless line pipe) and accessories, service and storage provision of tubular products and accessories.

LRC 6014676/OHS/U/EN/M/042

Tenaris Onne (Tenaris Global Services Nigeria Ltd) Oil and Gas Freezone Federal Lighter Terminal Onne/Port Harcourt - River State Nigeria

Threading, machining and finishing of steel pipes and accessories, storage and other services related.

LRC 6014676/OHS/U/EN/M/043

Tenaris Onne Pipe Coating Centre (Pipe Coaters Nigeria Ltd) Oil and Gas Freezone Federal Lighter Terminal Onne/Port Harcourt - River State Nigeria

Coating of steel pipes and accessories, storage and other services related.

LRC 6014676/OHS/U/EN/M/044

Page 21: Société Anonyme HoldingMetalmecanica S.A. Ruta Prov. 55 - Km 754.1 (5730) Villa Mercedes, San Luis Argentina Sucker Rods Manufacturing for Oil Industry, Protectors and Accessories:

CERTIFICATE SCHEDULE

Tenaris S.A. Société Anonyme Holding 13, Rue Beaumont

L-1219 Luxembourg R.C.S. Luxembourg B-85.203

Locations Activities

Approval Certificate Original Approval: 22nd July 2017 No: LRC 6014676/OHS/U/EN/M Current Certificate: 17th December 2019 Certificate Expiry: 21st July 2020

Page 19 of 20

����

This document is subject to the provision below Via Cadorna, 69 20090 Vimodrone (MI)

For and on behalf of 1 Trinity Park, Bickenhill Lane, Birmingham, B37 7ES, - United Kingdom. This approval is carried out in accordance with the LRQA assessment and certification procedures and monitored by LRQA.

The use of the UKAS Accreditation Mark indicates Accreditation in respect of those activities covered by the Accreditation Certificate Number 001

Lloyd’s Register Group Limited, its affiliates and subsidiaries, including Lloyd’s Register Quality Assurance Limited (LRQA), and their respective officers, employees or agents are, individually and collectively, referred to in this clause as ‘Lloyd’s Register’. Lloyd’s Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Lloyd’s Register entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract

Tenaris NKKTubes (NKKTUBES) 2-1 Ikegami-cho Kawasaki-ku, Kawasaki-shi, Kanagawa-ken, 210-0864 Japan

Manufacture of seamless steel hot rolled tubular products.

LRC 6014676/OHS/U/EN/M/045

Tenaris Global Services (Thailand) Ltd. 15/21, Moo 2, Tambon Ching-Ko 90280 Amphur Singhanakhon,Songkhla Thailand

Service Provision and supply of steel Tubular product and accessories. LRC 6014676/OHS/U/EN/M/046

Tenaris Machachi (Tenaris Ecuador S.A.) Panamericana Sur Km 16.2 y Camino a San Alfonso Via a Machachi Machachi, Pichincha Ecuador Tenaris Global Services Ecuador S.A

Threading of casing and tubing steel pipes, service provision and storage of tubular products and accessories. LRC 6014676/OHS/U/EN/M/047

Reception, Storage, Inspection and Dispatch of Steel Tubes and Accessories

Page 22: Société Anonyme HoldingMetalmecanica S.A. Ruta Prov. 55 - Km 754.1 (5730) Villa Mercedes, San Luis Argentina Sucker Rods Manufacturing for Oil Industry, Protectors and Accessories:

CERTIFICATE SCHEDULE

Tenaris S.A. Société Anonyme Holding 13, Rue Beaumont

L-1219 Luxembourg R.C.S. Luxembourg B-85.203

Locations Activities

Approval Certificate Original Approval: 22nd July 2017 No: LRC 6014676/OHS/U/EN/M Current Certificate: 17th December 2019 Certificate Expiry: 21st July 2020

Page 20 of 20

����

This document is subject to the provision below Via Cadorna, 69 20090 Vimodrone (MI)

For and on behalf of 1 Trinity Park, Bickenhill Lane, Birmingham, B37 7ES, - United Kingdom. This approval is carried out in accordance with the LRQA assessment and certification procedures and monitored by LRQA.

The use of the UKAS Accreditation Mark indicates Accreditation in respect of those activities covered by the Accreditation Certificate Number 001

Lloyd’s Register Group Limited, its affiliates and subsidiaries, including Lloyd’s Register Quality Assurance Limited (LRQA), and their respective officers, employees or agents are, individually and collectively, referred to in this clause as ‘Lloyd’s Register’. Lloyd’s Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Lloyd’s Register entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract

Tenaris Aktau (Kazakhstan Pipe Threaders LLP) 130000 Mangystau Region, Aktau Industrial zone Subzone #3 Building ABK Kazakhstan

Threading of steel tubular products, service provision. LRC 6014676/OHS/U/EN/M/050

Km 7 Via El Proyecto-Shushufindi Parroquia 7 de Julio, Sucumbios Ecuador

LRC 6014676/OHS/U/EN/M/048