Intimation of Trading Window Closure attached

24th September 2026 Listing Department Listing Department BSE Limited The National Stock Exchange of India Ltd. 25th Floor, Phiroze Jeejeebhoy Towers, Exchange Plaza, 5th Floor, Plot No. C/1, Dalal Street, G Block, Bandra-Kurla Complex, Fort Mumbai- 400001 Bandra (East), Mumbai - 400051 Scrip Code: 500280 Symbol: CENTENKA Dear Sir/ Madam, Sub: Intimation of Closure of Trading Window of Century Enka Limited (‘the Company’) In terms of the Company's Insider Trading Code, the trading window for dealing in the securities of the Company will be closed for all Directors/ Connected Persons/ Designated Persons from 1st October 2026 and the same will remain closed till 48 hours after the announcement of the unaudited standalone and consolidated financial results for the quarter and half year ending 30th September 2026. Accordingly, all Directors/ Connected Persons/ Designated Persons of the Company have been informed not to trade in the securities of the Company during the aforesaid period of closure of Trading Window. This is for your information and records. Thanking you, Yours faithfully, For Century Enka Limited (Rahul Dubey) VP-Legal & Company Secretary FCS 8145 Century Enka Ltd. Factory & Regd. Office: Plot No. 72 & 72-A, M.I.D.C., Bhosari, Pune - 411026. T: +91 20 66127 304 | F: +91 20 2712 0113 E: cel.investor@adityabirla.com | W: www.centuryenka.com Corporate ID No. (CIN): L24304PN1965PLC139075