Authorisation for determining materiality of an event or information

(An ISO 9001:2015; ISO 14001:2015 and 45001:2018 certified company) CIN: L85110KA1954PLC000759 Website: www.sandurgroup.com Email ID: secretarial@sandurgroup.com REGISTERED OFFICE CORPORATE OFFICE ‘SATYALAYA’, No.266 ‘SANDUR HOUSE’, No.9 Ward No.1, Palace Road Bellary Road, Sadashivanagar Sandur – 583 119, Ballari District Bengaluru – 560 080 Karnataka, India Karnataka, India Tel: 08395 260300 Tel: 080 4152 0176 - 79 / 4547 3000 SMIORE / SEC / 2026-27 / 36 6 August 2026 BSE Limited National Stock Exchange of India Limited Phiroze Jeejeebhoy Towers Exchange Plaza, C-1, Block G Dalal Street Bandra-Kurla Complex Mumbai - 400 001 Mumbai - 400 051 S crip Code: 504918 Symbol: SANDUMA Symbol: SANDUMA Dear Sir/ Madam, Sub: Authorisation for determining materiality of an event or information Pursuant to provisions of Regulation 30(5) of Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015, this is to inform Stock Exchanges that the Board of Directors has in its 386th meeting held on 6 August 2026 which commenced at 11:30 A.M. and concluded at 3:55 P.M., severally authorized the following Key Managerial Personnel to determine the materiality of an event or information for the purpose of making disclosures to Stock Exchanges w.e.f., 6 August 2026: Sl. No. Name and Designation Contact Email ID 1 Bahirji Ajai Ghorpade bahirjighorpade@sandurgroup.com Managing Director 2 Manoj Kumar Jha 080- manoj.jha@sandurgroup.com Chief Financial Officer & Chief Risk Officer 45473019 3 Neha Thomas neha.thomas@sandurgroup.com Company Secretary & Compliance Officer Stock Exchanges are requested to take the same on record. Thank you for The Sandur Manganese & Iron Ores Limited Neha Thomas Company Secretary & Compliance Officer ICSI Membership No. A60853 MINES OFFICE: Deogiri - 583112, Sandur Taluk, Ballari District; Tel: +91 8395 271028 PLANT OFFICE: Metal & Ferroalloy Plant, Vyasankere, Mariyammanahalli – 583 222, Hosapete Taluk, Vijayanagara District; Tel: +91 8394 294802 / 805