Analysts/Institutional Investor Meet/Con. Call Updates

Archean Chemical Industries Limited Life’s good with our chemistry August 03, 2026 National Stock Exchange of India Limited BSE Limited Exchange Plaza Listing Operations Bandra-Kurla Complex, Bandra (E) PJ Towers Dalal Street Mumbai-400051 Mumbai-400001 Symbol-ACI Scrip Code- 543657 Dear Sir/Madam, Subject: Earnings Call Recording Reference: Earnings call intimation dated July 28, 2026 In continuation to our earlier letter dated July 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 ended June 30, 2026 held on Monday, August 03, 2026 at 11.00 am is available on the website of the Company www.archeanchemicals.com at following link: https://www.archeanchemicals.com/investor- relations/admin/assets/products/10045792.mp3 Kindly take on record the same. Yours faithfully For Archean Chemical Industries Limited Vijayaraghavan N E Company Secretary and Compliance Officer M. No. A41671 Regd. Office : No.2, North Crescent Road, T Nagar, Chennai – 600017, Tamil Nadu, India. Ph: +91 44- 61099999, www.archeanchemicals.com, secretarial@archeanchemicals.com; CIN: L24298TN2009PLC072270; GSTIN: 33AAHCA8471D3ZR