Effective Date of Scheme of Amalgamation

Ref No.: SEC/1358/2026-27 November 3, 2026 The Secretary, Listing Department The Manager, Listing Department BSE Limited, National Stock Exchange of India Ltd., Phiroze Jeejeebhoy Towers, Exchange Plaza, 5th Floor, Plot No. C/1, Dalal Street, G-Block, Bandra – Kurla Complex, Mumbai – 400 001. Bandra, Mumbai – 400 051. Maharashtra, India. Maharashtra, India. Scrip code: 500470 Symbol: TATASTEEL Dear Madam, Sirs, Subject: ‘Effective Date’ of the Scheme of Amalgamation amongst Tata Steel Limited and Rujuvalika Investments Limited, wholly owned subsidiary, and their respective shareholders This is further to our disclosures dated October 1, 2026 and October 15, 2026 in connection with the Scheme of Amalgamation amongst Tata Steel Limited (‘Company’) and Rujuvalika Investments Limited (‘RIL’) and their respective shareholders (‘Scheme of Amalgamation’), as approved and sanctioned by the Hon’ble National Company Law Tribunal, Mumbai bench (having jurisdiction over both the companies) vide its Order dated October 1, 2026 (‘NCLT Order’). We wish to inform you that, after fulfilling all the conditions specified in Clause 9.1(h) (Definition of Effective Date) read with Clause 21 (Scheme Conditional Upon) of the Scheme of Amalgamation, RIL have on October 28, 2026, successfully filed the certified copy of the NCLT Order with the Registrar of Companies, Mumbai, Ministry of Corporate Affairs, Government of India (‘ROC-MCA’). The same has been approved and taken on records by the ROC-MCA. Thereafter, today, i.e. on November 3, 2026, the Company has successfully filed the certified copy of the NCLT Order with the ROC-MCA. These filings have been made in compliance with Section 232 of the Companies Act, 2013 read with Rule 25(7) of the Companies (Compromises, Arrangements and Amalgamations) Rules, 2016. Accordingly, in terms of Clause 8 (Effectiveness of the Scheme) read with Clause 9.1(h) (Definition of Effective Date) of the Scheme of Amalgamation, the Scheme of Amalgamation has become operative on and from today i.e., November 3, 2026 (‘Effective Date’). Further in terms of the Scheme of Amalgamation, the Memorandum of Association of the Company stands amended to the extent given below: The authorized equity share capital of ₹1.55 crore of RIL stands merged with the authorized share capital of the Company in the class of Ordinary (Equity) Shares of face value ₹1/- each. Consequently, the authorized share capital of the Company will be ₹32,621.05 crore. This disclosure is being made in compliance with Regulations 30, 51 and other applicable provisions of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015. This is for your information and records. Thanking you. Yours faithfully, Tata Steel Limited Parvatheesam Kanchinadham Company Secretary and Chief Legal Officer