Credit Rating

Date: July 14, 2026 The General Manager The Manager, Listing Department, Listing & Compliance Department, Bombay Stock Exchange 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: 543669 & 977174 Scrip Symbol: RUSTOMJEE Sub: Credit rating by CRISIL Ratings Limited Ref: Intimation under Regulation 30(6) read with Schedule III of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015. Dear Sir/ Madam, This is to inform you that Crisil vide its letter dated July 14, 2026, assigned a rating to the Company’s total Bank Loan Facilities as “Crisil AA -/ (Stable)” (pronounced as Crisil double A minus rating with stable outlook). This is to further inform you that CRISIL Ratings Limited (“Crisil”) vide its letter dated July 14, 2026, reaffirmed a rating of the 335 Crore Non-convertible Debentures of the Company to “Crisil AA -/ (Stable)” (pronounced as Crisil double A minus rating with stable outlook). The letter from Crisil is enclosed herewith. We request you to please take note of the aforesaid. Thanking you Yours Faithfully For Keystone Realtors Limited Bimal Nanda Company Secretary ACS 11578 Encl: As above KEYSTONE REALTORS LIMITED Registered Office : 702, NATRAJ, M. V. Road Junction, Western Express Highway, Andheri (East), Mumbai - 400 069. Tel.: +91 22 6676 6888 | CIN : L45200MH1995PLC094208 | Website: www.rustomjee.com