Verification Opinion

4 July 2023
Opinion No：SGS23/019

Mr. Nobuaki Nara
President
TOKYO STEEL MFG. CO., LTD.
Kasumigaseki-Tokyu Bldg 15F,3-7-1, Kasumigaseki,Chiyoda-ku, Tokyo, Japan
Objective
SGS Japan Inc. (hereinafter referred to as "SGS") was commissioned by TOKYO STEEL MFG. CO., LTD.
(hereinafter referred to as "the Organization") to conduct independent verification based on Criteria of Verification(ISO14064-3: 2019 and the SGS verification protocol) regarding the data prepared by the Organization on thescope of verification (hereinafter referred to as “the Statement”). The objective of this verification is to confirm that
the Statement in the Organization's applicable scope has been correctly calculated and reported in the Statement
in conformance with the criteria, and to express our views as a third party. The Organization is responsible for thepreparation and fair presentation of the Statement.

Scope
The scope of verification is Scope 1 and 2 emissions, energy consumption, and Scope 3 emissions.
The period subject to report is from 1 April 2022 to 31 March 2023.
Refer to the attached sheet for the detailed scope of verification.

Procedure of Verification
The statement was verified in accordance with Criteria of Verification, and the following processes wereimplemented at a limited level of assurance:
Verification of the calculation system: Interviews on the measurement, tabulation, calculation and reporting
methods employed by the Organization as well as review of related documents and records
Verification of the statement: On-site verification and review of vouchers conducted at Tahara Plant andUtsunomiya Plant, and analytical procedures and interviews for other sites in the scope of verification carriedout at the head office and Kyushu Plant.
The criteria for this review are based on Act on the Rational Use of Energy, GHG Emissions Calculation andReporting Manual Ver. 4.9, Basic Guidelines on Accounting for Greenhouse Gas Emissions throughout the Supply
Chain Ver. 2.5, Emission Factor Database on the same Accounting Ver. 3.3 and the protocol specified by theOrganization.

Conclusion
Within the scope of the verification activities employing the methodologies mentioned above, nothing has come toour attention that caused us to believe that the Organization's Statement was not calculated and reported inconformance with the criteria.
SGS Japan Inc. affirms our independence from the Organization, being free from bias and conflicts of interest with
the Organization.

For and on behalf of SGS Japan Inc
Yokohama business Park North Square Ⅰ
134, Good-cho, Hodogaya-ku,Yokohama
Knowledge
Management Committee Member
Head of Certification/Accreditation

Yuji Takeuchi

1/2

本書面は、SGSジャパン株式会社によってwww.sgs.com/terms_and_conditions.htmで参照することができる「認証サービスの一般条件」に従って発行されたものであり、「認証サービスの一般条件」に規定されている責任の制限と補償に関する条項および管轄に関する条項等に従います。この書面に記載された内容は検証を行った時点におけるまた適用される場合は組織の指示の範囲内における確認内容を示しています。組織およびこの書面に関するSGSジャパン株式会社の責務は取引文書におけるすべての権利および義務の遂行から、免除させるものではありません。本書面の内容または体裁について、許可なく偽造、変造または改ざんすることは違法であり違反した場合には法令に基づくあらゆる範囲において罰せられる可能性があります。

Attached file
4 July 2023
Opinion No：SGS23/019

The details of the scope of verification
The Scope
1The performance data Scope 1 and 2 include
energy related carbon dioxide emissions andenergy consumption, *excluding the vehicles
which run outside of the sites.
2Scope3 (Category 4)
CO2 emissions as a specified consigner.
Reported emissions based on the Act on theRational Use of Energy*Limited to energy usage by the ton-kilometer
method calculated with a load ratio of 85%

The Boundary
4 domestic plants of theOrganization

The Organization

The Statement
Scope 1: 369,118 t- CO2
Scope 2: 883,240 t- CO2

56,508 t- CO2

2/2
本書面は、SGSジャパン株式会社によってwww.sgs.com/terms_and_conditions.htmで参照することができる「認証サービスの一般条件」に従って発行されたものであり、「認証サービスの一般条件」に規定されている責任の制限と補償に関する条項および管轄に関する条項等に従います。この書面に記載された内容は検証を行った時点におけるまた適用される場合は組織の指示の範囲内における確認内容を示しています。組織およびこの書面に関するSGSジャパン株式会社の責務は取引文書におけるすべての権利および義務の遂行から、免除させるものではありません。本書面の内容または体裁について、許可なく偽造、変造または改ざんすることは違法であり違反した場合には法令に基づくあらゆる範囲において罰せられる可能性があります。