This is to inform that pursuant to the "RIIL Code to Regulate, Monitor and Report Trading by Directors, Promoters, Designated Persons and Specified Connected Persons of the Company" ("Code"), the Trading Window Close Period will commence from October 1, 2026 and end 48 hours after the financial results of the Company for the Second quarter ending September 30, 2026 become Generally Available Information.

September 30, 2026 BSE Limited National Stock Exchange of India Limited Phiroze Jeejeebhoy Towers, Exchange Plaza, Plot No. C/1, G Block, Dalal Street, Bandra-Kurla Complex, Bandra (East), Mumbai - 400 001 Mumbai - 400 051 Scrip Code: 523445 Trading Symbol: RIIL Dear Sirs, Sub.: Closure of Trading Window This is to inform that pursuant to the “RIIL Code to Regulate, Monitor and Report Trading by Directors, Promoters, Designated Persons and Specified Connected Persons of the Company” (“Code”), the Trading Window Close Period will commence from October 1, 2026 and end 48 hours after the financial results of the Company for the Second quarter ending September 30, 2026 become Generally Available Information. This is for your information and records. Thanking you, Yours faithfully, For Reliance Industrial Infrastructure Limited Amitkumar Mundhe Company Secretary and Compliance Officer Registered Office: 4th Floor, Court House, Lokmanya Tilak Marg, Dhobi Talao, Mumbai – 400002, Maharashtra, India. Phone No: +91-22-7967 9053. E-mail: investor_relations@riil.in Website: www.riil.in CIN: L60300MH1988PLC049019