Analysts/Institutional Investor Meet/Con. Call Updates

November 03, 2026 National Stock Exchange of India Limited BSE Limited Exchange Plaza Listing Operations Bandra-Kurla Complex, Bandra (E) P J Towers Dalal Street Mumbai-400051 Mumbai-400001 Symbol-ACI Scrip Code- 543657 Dear Sir/Madam, Subject: Earnings Call Recording Reference: Earnings Call intimation dated October 28, 2026 In continuation to our earlier letter dated October 28, 2026 and pursuant to Schedule III Part A Para A of Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, the audio recording of the Earnings Conference Call of the Company for the Quarter and Half Year ended September 30, 2026 held on Tuesday, November 03, 2026 at 02.30 pm is available on the website of the Company www.archeanchemicals.com at following link: https://www.archeanchemicals.com/wp-content/uploads/2026/11/10048600.mp3 Kindly take on record the same. Thanking you Yours faithfully For Archean Chemical Industries Limited Vijayaraghavan NE Company Secretary and Compliance Officer M. No. A 41671 Corporate Office: SKCL Summit, No. 47/C3, 10th Floor, Gandhi Mandapam Road, Kotturpuram , Chennai – 600085 Registered Office: No.2, North Crescent Road, T Nagar, Chennai, Tamil Nadu, India – 600017 CIN: L24298TN2009PLC072270 | info@archeanchemicals.com | Ph: +91 44 - 610 99 999 | www.archeanchemicals.com