Analysts/Institutional Investor Meet/Con. Call Updates

September 15, 2026 The General Manager, Listing Department The Manager, Listing Department BSE Limited National Stock Exchange of India Limited Phiroze Jeejeebhoy Towers, Exchange Plaza, Dalal Street, Bandra-Kurla Complex, Bandra (East), Mumbai – 400 001 Mumbai – 400 051 Scrip Code: 500770 Symbol: TATACHEM Dear Sirs, Sub.: Intimation of Schedule of Analysts/Institutional Investor Meeting under the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 This has reference to Regulation 30(6) of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015. In accordance with the said Regulations, please find below details of the meeting with Analyst/Institutional Investor: Date Name Venue Type of Meeting September 18, 2026 Aditya Birla Sun Life AMC Mumbai One on One Note: The schedule of the aforesaid meeting is subject to change. The change may happen due to exigencies on the part of Analyst/Institutional Investor/Company. No Unpublished Price Sensitive Information is proposed to be shared by the Company during the aforesaid Investor Meeting. This is for your information and records. Yours faithfully, For Tata Chemicals Limited Jeraz E. Mahernosh Company Secretary (FCS 7008)