Disclosure Devil - Summary

Sensitivity: Public (C4) HZL/2025-26/SECY/59 July 25, 2025 BSE Limited National Stock Exchange of India Limited Phiroze Jeejeebhoy Towers Exchange Plaza, 5th Floor Plot No., C/l, G Block Dalal Street, Fort Bandra-Kurla Complex, Bandra (East), Mumbai – 400 001 Mumbai – 400 051 Kind Attn: General Manager – Department of Corporate Services Kind Attn: Head Listing & Corporate Communication Scrip Code: 500188 Trading Symbol: “HINDZINC” Dear Sir/Madam, Sub: Disclosure under Regulation 30 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, as amended (“SEBI Listing Regulations”) - Change in Directors Pursuant to Regulation 30 read with Schedule III, Part A, Para A of the SEBI Listing Regulations, we wish to inform you that based on the recommendation of the Nomination and Remuneration Committee, the Board of Directors of the Company through resolution passed by circulation on Friday, July 25, 2025, at 03:20 PM IST, inter alia, have approved the following: 1. Appointment of Mr. Anoop Kumar Mittal (DIN: 05177010) as an Additional Director designated as a Non-Executive Independent Director of the Company, not liable to retire by rotation, for a 1st term of two consecutive years commencing from August 01, 2025, till July 31, 2027, subject to the approval of shareholders of the Company at the ensuing Annual General Meeting. Further, Mr. Mittal is also inducted as the Chairperson and Member of the Sustainability & ESG Committee w.e.f. August 01, 2025. We hereby confirm that Mr. Mittal satisfies the criteria of independence prescribed under the Companies Act, 2013 and SEBI Listing Regulations and that he is not debarred from holding the office of Director by virtue of any order passed by SEBI or any other such authority. 2. Re-appointment of Ms. Pallavi Joshi Bakhru (DIN: 01526618) as Non-Executive Independent Director of the Company, not being liable to retire by rotation, for a 2nd term of two consecutive years commencing from August 10, 2025, till August 09, 2027, subject to the approval of shareholders of the Company at the ensuing Annual General Meeting. Further, Ms. Bakhru is also inducted as the Chairperson and Member of the Nomination and Remuneration Committee and Member of Audit & Risk Management Committee and Corporate Social Responsibility Committee w.e.f. August 01, 2025. We hereby confirm that Ms. Bakhru satisfies the criteria of independence prescribed under the Companies Act, 2013 and SEBI Listing Regulations and she is not debarred from holding the office of Director by virtue of any order passed by SEBI or any other such authority. Sensitivity: Public (C4) 3. Completion of tenure of Mr. Akhilesh Joshi, (DIN: 01920024) as Non-Executive Independent Director of the Company. We hereby inform that the 2nd and final term of Mr. Akhilesh Joshi, (DIN: 01920024) as Non-Executive Independent Director of the Company will conclude on July 31, 2025. Accordingly, as per section 149(11) of the Companies Act, 2013, he will cease to be a Non- Executive Independent Director with effect from July 31, 2025. The Company sincerely acknowledges and appreciates the valuable contributions made by Mr. Joshi during his tenure as the Independent Director of the Company. Details in accordance with the Regulation 30 of the SEBI Listing Regulations read with SEBI Master Circular No. SEBI/HO/CFD/PoD2/CIR/P/0155 dated November 11, 2024, are provided in Annexure A, B and C to this letter. We request you to please take the above on record. Thanking You Yours faithfully, For Hindustan Zinc Limited Aashhima V Khanna Company Secretary & Compliance Officer Encl: as above Sensitivity: Public (C4) Details in accordance with the Regulation 30 of the SEBI Listing Regulations read with SEBI Master Circular No. SEBI/HO/CFD/PoD2/CIR/P/0155 dated November 11, 2024: Annexure - A Appointment of Mr. Anoop Kumar Mittal (DIN: 05177010) as an Additional Director designated as a Non- Executive Independent Director of the Company S. No. Particulars Details 1. Reason for Change Appointment of Mr. Anoop Kumar Mittal (DIN: 05177010) as an Additional Director designated as a Non-Executive Independent Director of the Company. 2. Date of appointment 1st term of two consecutive years commencing from August 01, 2025, till July 31, 2027 3. Brief profile (in case of appointment): Mr. Mittal has more than 40 years of experience in the Construction Sector: Civil Engineering, Consultancy Real Estate Development, Merger & Acquisitions and Project Management. He has served as Chairman & Managing Director of NBCC (India) Limited from 2013 to 2019. Under his leadership, the Company achieved the prestigious Navratna status in 2014. Born at Bharatpur, Rajasthan, he has done bachelor’s in civil engineering from Thapar Institute of Engineering & Tech., Punjab University. He is also Conferred “Doctor of Philosophy” (Honoris Causa) - Chancellor, Singhania University, by virtue of his attaining eminence in the field of Civil & Construction Engineering. He has been awarded the SCOPE Excellence Award in the Individual Leadership category and also the Life-Time achievement award by Construction Times Magazine. 4. Disclosure of relationships between directors (in case of appointment of a director) Mr. Mittal is not related to any of the Directors of the Company. Sensitivity: Public (C4) Annexure - B Re-appointment of Ms. Pallavi Joshi Bakhru (DIN: 01526618) as Non-Executive Independent Director of the Company S. No. Particulars Details 1. Reason for Change Re-appointment of Ms. Pallavi Joshi Bakhru (DIN: 01526618) as Non-Executive Independent Director of the Company 2. Date of re-appointment 2nd term of two consecutive years commencing from August 10, 2025, till August 09, 2027 3. Brief profile (in case of appointment) Ms. Bakhru is a fellow Member of the Institute of Chartered Accountants of India and Indian Institute of Corporate Affairs. Ms. Bakhru has over 30 years of experience spanning solutions and clients in different sectors. Currently, she leads the Private Client Service offering at Grant Thornton Bharat and heads the India - UK Corridor for the Firm. In 2015, Ms. Pallavi Joshi Bakhru was recognized as one of the Top 10 Women in Tax in India by the International Tax Review. Her specialties include corporate tax, litigation, including being a part of a team that ran an international arbitration under Bilateral Investment Treaty (BIT), tax structuring and regulatory matters pertaining to FEMA. Over the years, she has simplified the global structure of some large groups, institutionalized a royalty payment system, resolved some high-pitched tax litigation and done Advocacy and has experience in Owners & Private Clients, Natural resources, consumer and retail, aviation, manufacturing, and education. 4. Disclosure of relationships between directors (in case of appointment of a director) Ms. Bakhru is not related to any of the Directors of the Company. Sensitivity: Public (C4) Annexure - C Completion of tenure of Mr. Akhilesh Joshi, (DIN: 01920024) as Non-Executive Independent Director of the Company S. No. Particulars Details 1. Reason for Change Completion of tenure of Mr. Akhilesh Joshi, (DIN: 01920024) as Non-Executive Independent Director of the Company. 2. Date of cessation 2nd and final term of Mr. Akhilesh Joshi, (DIN: 01920024) as a Non-Executive Independent Director of the Company will conclude on July 31, 2025. Accordingly, he will cease to be a Non-Executive Independent Director with effect from July 31, 2025. 3. Brief profile (in case of appointment) Not Applicable 4. Disclosure of relationships between directors (in case of appointment of a director)