Change in Company Secretary and Compliance Officer

No.18(2)/2026/63(I) 30th July 2026 BSE Limited National Stock Exchange of India Calcutta Stock Exchange Phiroze Jeejeebhoy Limited Limited Towers, Dalal Street, Exchange Plaza, C-1, Block G, 7, Lyons Range, Murgighata, Mumbai – 400001. Bandra-Kurla Complex, Dalhousie, Kolkata, Scrip Code: 543768 Bandra (East), Mumbai – 400051. West Bengal 700001. Security ID: NSLNISP Scrip ID: 74920 Dear Sir / Madam, Sub: Change in Company Secretary and Compliance Officer. Ref: Regulations 30 read with Schedule III of SEBI (LODR) Regulations, 2015. With reference to the above, this is to inform that Shri Aniket Kulshreshtha, FCS – 7795, who was appointed as the Company Secretary & Compliance Officer w.e.f. 11.08.2023 has, vide letter dated 30.07.2026, tendered his resignation as Company Secretary & Compliance Officer of the Company consequent upon his appointment as Company Secretary in NMDC Limited. The said letter of resignation is enclosed herewith at Annexure I. It is further submitted that the Board of Directors in its meeting held on 30.07.2026 inter-alia has approved the appointment of Shri Paraj Kanti Saha, ACS – 75686, as Company Secretary & Compliance Officer (Key Managerial Personnel) of NMDC Steel Limited with immediate effect. The requisite details with respect to the above changes as required under Regulation 30 of SEBI LODR Regulations read with SEBI Circular dated July 13, 2023 are provided in the Annexure II to this letter. The above information is also available on the Company's website on following link: https://www.nsltd.in/en Yours faithfully, for NMDC Steel Limited (Krishna Kumar Thakur) Director (Personnel) Encl: as above Annexure II Required disclosures/details in respect of Changes in the Key Managerial Personnel pursuant to Regulation 30 of the SEBI LODR Regulations read with SEBI Circular SEBI/HO/CFD/CFD- PoD1/P/CIR/2023/123 dated 13th July, 2023 :- Sr. Particulars Cessation Appointment 1 Reason For Change Cessation of Shri Aniket Appointment of Shri Paraj Kanti Saha as Kulshreshtha, as Company Company Secretary and Compliance Secretary and Compliance Officer of NMDC Steel Limited. Officer of NMDC Steel Limited consequent upon his appointment as Company Secretary and Compliance Officer in NMDC Limited. 2 Date of appointment Date of cessation: Date of appointment: / Date of cessation / Term of appointment 30th July, 2026 30th July, 2026 3 Brief profile Not Applicable Shri Paraj Kanti Saha is an Associate member of ‘The Institute of Company Secretaries of India’ having membership number A-75686. He also holds Fellow membership of 'The Institute of Chartered Accountants of India' and 'The Institute of Cost Accountants of India'. He has been working in the Finance Department in NMDC Limited since 2015. During his tenure in NMDC, he has handled diversified work assignments in the Finance department including Costing, Accounting, Concurrence, Treasury and Taxation Matters. Prior to joining NMDC, he was working with IREL (India) Limited (Formerly Indian Rare Earths Ltd). 4 Disclosure of Not Applicable Not Applicable relationships between directors (in case of appointment of a director) ******