Credit Rating- Revision

No. 18(2)/2026/68 21.08.2026 BSE Limited National Stock Exchange of Calcutta Stock Exchange Phiroze Jeejeebhoy Towers India Limited 7, Lyons Range, Murgighata, Dalal Street, Exchange Plaza, C- 1,Block G, Dalhousie, Mumbai – 400001. Bandra-Kurla Complex, Kolkata, Scrip Code: 543768 Bandra (East), West Bengal 700001 Mumbai – 400051 Scrip ID: 74920 Security ID: NSLNISP Dear Sir / Madam, Sub: Intimation under Regulation 30 of SEBI (LODR) Regulations, 2015 – Revision in credit rating by Crisil Ratings Limited Ref: Regulation 30 of SEBI (LODR) Regulations, 2015 In line with Regulation 30 read with Schedule-III of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, it is informed that Crisil Ratings Limited vide report / letter dated 20.08.2026 has reviewed Credit Ratings on Bank facilities of NMDC Steel Ltd. as under: Total Bank loan facilities rated Rs.4,500 crores. Long-term rating Crisil A / Stable (Upgraded from ‘Crisil BBB+/ Stable’) A copy of the said Report / Letter is enclosed herewith. This is for your information and records. Thanking you, Yours faithfully, for NMDC Steel Limited (Paraj Kanti Saha) Company Secretary Encl:- As above.