Acquisition of equity stake in T Steel Holdings

Ref.: SEC/888/2025-26

September 24, 2025

London Stock Exchange

London

Dear Madam, Sirs,

Sub: Acquisition of equity stake in T Steel Holdings Pte. Ltd

This is further to our disclosures dated May 12, 2025, June 25, 2025, July 10, 2025 andAugust 26, 2025 regarding infusion of funds by Tata Steel Limited ('Company') by way of subscription to equity shares of T Steel Holdings Pte. Ltd ('TSHP'), a wholly owned foreign subsidiary of the Company.

In this connection, we wish to inform you that, the Company has today i.e., onSeptember 24, 2025, acquired 457,71,14,428 equity shares of face value USD 0.1005 each aggregating to USD 460 million (₹4,054.66 crore*) in TSHP. Post this acquisition, TSHP will continue to be a wholly owned foreign subsidiary of the Company.

This disclosure is being made in compliance with Regulation 30 and 51 read with Schedule III of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015, as amended.

*USD to INR exchange rate has been taken as ₹88.1447 as published by Reserve Bank of India onSeptember 22, 2025.