National Storage Mechanism | Additional information

Ref.: SEC/888/2025-26

September 24, 2025

London Stock Exchange

London

Dear Madam, Sirs,

Sub: Acq u i s i t ion of eq u ity stake in T Steel Holdings Pte. Ltd

This is further to our disclosures dated May 12, 2025, June 25, 2025, July 10, 2025 and
August 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., on
September 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 disclosu re is bei ng made in co mpliance wi th Regulation 30 and 51 read with Schedule III of the Securities and Exchange Board of India (Li s t ing Obliga t ions and Disclosu re Requi r e men t s) Regulations, 2015, as amended.

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

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