Intimation of Closure of Trading Window is enclosed.

REF: HSL/SEC/2026/70 September 25, 2026 To To The Deputy Manager The Manager Department of Corporate Services National Stock Exchange of India Limited BSE Limited Exchange Plaza, Plot No. C/1, G Block P.J. Towers, Dalal Street Bandra-Kurla Complex, Bandra (East) Mumbai -400001 Mumbai -400051 Scrip Code: 514043 Symbol: HIMATSEIDE Dear Sir/ Madam, Sub: Intimation of Closure of Trading Window pursuant to SEBI (Prohibition of Insider Trading) Regulations, 2015 Pursuant to the SEBI (Prohibition of Insider Trading) Regulations 2015 and the Company’s Code of Conduct to Regulate, Monitor and Report Trading by Insiders, we inform you that the trading window for dealing in the Company's equity shares shall remain closed from Thursday, October 01, 2026 until further intimation. Accordingly, all Designated Persons and their immediate relatives have been intimated not to enter into any transaction involving dealing/ trading in the shares of the Company during the aforesaid period of closure of the trading window. Further, the date of the Board Meeting, to consider, approve and take on record the Un-Audited Financial Results for the quarter and half year ended September 30, 2026 will be intimated to the Stock Exchange(s) in due course of time. Kindly take the above on record. Thanking you, Yours Sincerely, For Himatsingka Seide Limited Bindu D. Company Secretary & Compliance Officer Himatsingka Seide Limited Registered Office: No.4/1-2, Crescent Road, Bangalore – 560001, India T +918022378000 E hslblr@himatsingka.com CIN L17112KA1985PLC006647 www.himatsingka.com