Credit Rating

October 22, 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/Mam, Sub: Intimation of Credit Rating under Regulation 30 (6) of SEBI (Listing Obligations & Disclosure Requirements) Regulations, 2015 (SEBI LODR) Pursuant to Regulation 30(6) read with Para A of Part A of Schedule III of the SEBI LODR, we hereby inform that, CRISIL has downgraded its ratings for Rs.1531 Crore (Enhanced from Rs.265 Crore) Long Term Bank Facilities of Archean Chemical Industries Limited as per the table below. Facilities Amount (Rs. Cr) Existing Revised Existing Revised Rating/Outlook Rating/Outlook Long term 265 1531 CRISIL A/Negative Crisil A-/Stable bank facilities The rating communication from CRISIL is enclosed. The aforesaid information is also being hosted on the website of the Company at www.archeanchemicals.com in accordance with Regulation 46 of SEBI LODR. Kindly take the same on record. Thanking you Yours faithfully For Archean Chemical Industries Limited Vijayaraghavan N E Company Secretary & Compliance Officer M. No. A41671 Enc: as above 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