Certificate under SEBI (Depositories and Participants) Regulations, 2018

To: To: BSE Limited The Manager Corporate Relationship Department Listing Department PJ Towers, The National Stock Exchange of India Limited Dalal Street, “Exchange Plaza”, Bandra – Kurla Complex, Mumbai - 400001 Bandra (EAST), Mumbai – 400051 BSE SCRIP CODE: 543896 NSE Symbol: AVALON Dear Sir/Madam, Sub: Certificate under Regulation 74(5) of the SEBI (Depositories and Participants), Regulations, 2018 for the Quarter Ended June 30, 2026 Pursuant to the above-mentioned regulations, we are providing the Certificate received from MUFG Intime India Private Limited (Formerly known as ‘M/s. Link Intime India Private Limited’), our Registrar and Share Transfer Agent (“R&STA”), confirming that they have not received any request for Dematerialization or Rematerialization for the quarter ended June 30, 2026. Further, we hereby inform that we have listed our equity shares with BSE Limited and National Stock Exchange of India Limited (“Stock Exchanges”) on April 18, 2023, and 100% of our shares are in dematerialized form. You are requested to kindly take the above on record. For Avalon Technologies Limited Name of the Person: Mr. Ajay Shukla Designation: Company Secretary & Compliance Officer M. No: A36992 Date: July 10, 2026 MUFG Intime India Private Limited (Formerly Link Intime India Private Limited) CIN: U67190MH1999PTC118368 Registered Address: C-101, Embassy 247, L.B.S. Marg, Vikhroli (West), Mumbai – 400083. Tel: +91 22 4918 6000 www.in.mpms.mufg.com 1 July 2026 The Compliance Officer/ Company Secretary AVALON TECHNOLOGIES LTD B-7 FIRST MAIN ROAD MEPZ. TAMBARAM CHENNAI, TAMIL NADU PINCODE: 600045 Subject: Confirmation Certificate under Regulation 74(5) of Securities and Exchange Board of India (Depositories and Participants) Regulations, 2018. Dear Sir/Madam, In reference to the above captioned regulation, we hereby confirm that the securities received from the depository participants for dematerialisation during the quarter ended 30th June 2026, were confirmed (accepted/rejected) to the depositories by us and that securities comprised in the said certificates have been listed on the stock exchanges where the earlier issued securities are listed. We hereby also confirm that the security certificates received for dematerialisation have been confirmed/rejected and the security certificates received were mutilated and cancelled after due verification by the depository participant and the name of the depositories have been substituted in the register of members as the registered owner within the prescribed timelines. We request you to kindly take note of the above in your records. Note: We have not received and processed any demat / remat request for the quarter ended 30th June 2026, this certificate is issued on the request of the company for compliance purpose. Thanking You, Yours faithfully, For MUFG Intime India Private Limited (Formerly Link Intime India Private Limited) Ashok Shetty Sr. Vice President – Corporate Registry MUFG Intime India Private Limited A part of MUFG Corporate Markets, a division of MUFG Pension & Market Services