General Updates

Ref: BSE, NSE & CSE/OMDC/CS/09-2026/01, Dated: 08.09.2026 To To To The Compliance The Compliance Department The Secretary Department National Stock Exchange of The Calcutta Stock Department of Corporate India Limited Exchange Limited Services Exchange Plaza, Plot No. C/1, 7, Lyons Range Bombay Stock Exchange Block – G Kolkata- 700001 Ltd Bandra Kurla Complex Scrip Code : 25058 1st Floor, PhiozeJee, Bandra (E) Jeebhoy Towers Mumbai - 400051 Bombay Samachar Marg Scrip Mumbai – 400001 Code : ORISSAMINE Scrip Code : 590086 Dear Sir/Madam, Subject: Cessation of Shri Arun Kanti Bagchi as Non-Executive Director of OMDC Ref: Disclosure under Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015. Pursuant to Regulation 30 of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015 (“SEBI Listing Regulations”), we would like to inform you that by Virtue of resignation received from Shri Arun Kanti Bagchi, Non- Executive Director, upon attaining the age of superannuation he has relinquished the charge of Director (Projects) of M/s. Rashtriya Ispat Nigam Limited (RINL) on 31.08.2026. Accordingly, he has resigned from the post of Non-Executive Director of the M/s The Orissa Minerals Development Company Limited (OMDC) w.e.f. 31.08.2026 (A/N). (Copy enclosed as Annexure). Disclosures as required under Regulation 30 of the SEBI (Listing Obligation and Disclosure Requirements) Regulation, 2015 is attached. This is for your information & record. Yours faithfully, For The Orissa Minerals Development Company Limited (Pintu Biswal) Company Secretary Disclosures as required under Regulation 30 of the SEBI (Listing Obligation and Disclosure Requirements) Regulation, 2015 are given below: Reason for change viz. appointment By virtue of resignation received from Shri Arun Kanti Bagchi, Non-Executive Director, upon attaining the age of superannuation he has relinquished the charge of Director (Projects) of M/s. Rashtriya Ispat Nigam Limited (RINL) on 31.08.2026. Accordingly, he has resigned from the post of Non-Executive Director of the M/s The Orissa Minerals Development Company Limited (OMDC) w.e.f. 31.08.2026 (A/N). Date of Cessation 31.08.2026 Brief Profile (in case of Appointment) Not Applicable Disclosure of relationships between Not Applicable Directors (in case of appointment of a Director)