General Updates

September 05, 2026 Department of Corporate Relationship National Stock Exchange of India Limited BSE Ltd. Exchange Plaza, C-1, Block G, Phiroze Jeejeebhoy Towers, Bandra Kurla Complex, Dalal Street, Fort, Mumbai – 400 001. Bandra (E), Mumbai – 400051 Scrip Code: 539177 NSE Symbol – AIIL Sub: Disclosure under Regulation 30 of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015 (the “SEBI Listing Regulations”) Dear Sir / Madam, Pursuant to Regulation 30 and in compliance with Regulation 36(1)(b) of the SEBI Listing Regulations, we wish to inform you that the letters providing a web-link, including the exact path for accessing the complete Annual Report of the Company for the financial year 2025-26, are being dispatched to those shareholders who have not registered their e-mail addresses with the Company/Registrar and Transfer Agents/Depository Participant(s). A copy of the said letter is enclosed. We request you to take the same on your record. Thank you, For Authum Investment & Infrastructure Limited Dipyanti Jaiswar Company Secretary & Compliance Officer Place: Mumbai Date: September 05, 2026 Members Authum Investment & Infrastructure Limited Dear Sir / Madam, Sub.: Web-link of the Annual Report of Authum Investment & Infrastructure Limited for the Financial Year 2025-26. We are pleased to inform you that the Forty-Fourth (44th) Annual General Meeting ('AGM’) of the members of Authum Investment & Infrastructure Limited ('the Company') is scheduled to be held on Monday, September 28, 2026 at 04:00 P.M. (IST) through Video Conferencing (‘VC’) / Other Audio Visual Means (‘OAVM’), in compliance with the various circulars issued by the Ministry of Corporate Affairs and SEBI, from time to time. In accordance with Regulation 36(1)(a) of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015 ('Listing Regulations'), the Notice convening the 44th Annual General Meeting along with the Annual Report for FY 2025-26 are being sent via email to all members whose email addresses are registered with the Company, Registrar and Transfer Agent (RTA) / Depository Participants (DP). As per the records available with the Company and / or its RTA, your email address is not registered against your Demat account / Folio No. Therefore, in accordance with Regulation 36(1)(b) of the Listing Regulations, we are sending you this letter to inform you that the Notice and Annual Report for FY 2025–26 can be accessed through the following links: • Web-link of Company’s Website: https://www.authum.com/admin/uploads/2025- 2026.pdfhttps://www.authum.com/admin/uploads/2025-2026.pdf • Path: https:// authum.com//investor.php > Investor Relations > Disclosure under Regulation 46 of SEBI LODR > Annual Report > FY 2025-26 > Annual Report for FY 2025-26. • Below is the QR Code for Annual Report and Notice of Annual General Meeting: QR for Annual Report QR for Notice of AGM Additionally, Notice of the AGM and the Annual Report for the FY 2025-26 will also be available on the CDSL website at https://www.cdslindia.com/ and the stock exchanges on which the securities of the Company are listed, i.e., BSE Limited and National Stock Exchange of India Limited at https://www.bseindia.com/ and https://www.nseindia.com/ , respectively. Key details for 44th AGM are as under: Events Date Cut Off Date Monday, September 21, 2026 Voting Start Date Thursday, September 24, 2026 Voting Start Time 9:00 AM Voting End Date Sunday, September 27, 2026 Voting End Time 5:00 PM General Meeting Date Monday, September 28, 2026 General Meeting Start Time 4:00 PM In case of any query kindly approach Company's RTA: Maheshwari Datamatics Private Limited 5th Floor, 23 RN Mukherjee Road, Esplanade, Lal Bazaar, Kolkata, West, Bengal 700001 Email: mdpldc@yahoo.com Thank you, Yours faithfully, For Authum Investment & Infrastructure Limited Sd/- Dipyanti Jaiswar Company Secretary & Compliance Officer Membership No. A41024