Intimation of closing of trading window

Prostarm/Secretarial/2026-27/64 September 23, 2026 BSE Limited National Stock Exchange of India Limited Phiroze Jeejeebhoy Towers, Exchange Plaza, C-1, Block G, Dalal Street, Mumbai – 400 001 Bandra Kurla Complex, Bandra (E), Mumbai – 400 051 Scrip Code: 544410 Scrip Symbol: PROSTARM Sub: Intimation of Closure of Trading Window Dear Sir/Madam, This is to inform you that pursuant to the Securities and Exchange Board of India (Prohibition of Insider Trading) Regulations, 2015, as amended and the Company's Code of Internal Procedures and Conduct for Prevention of Insider Trading, the Trading Window for dealing in Securities of the Company for all Designated Persons and their Immediate Relatives of the Company shall remain closed with effect from Thursday, October 01, 2026, until 48 hours after the declaration of un-audited Financial Results (Standalone and Consolidated) for the Quarter and Half Year ended September 30, 2026. Accordingly, all the Designated Persons, their Immediate Relatives and other Insiders of the Company are advised not to deal in the Equity Shares of the Company during the aforesaid period. Further, the date of the Board Meeting in which the financial results are to be approved will be informed to the Stock Exchanges in due course. Kindly take the above information on record. The said intimation shall also be available on website of the Company at www.prostarm.com. Thanking you, For Prostarm Info Systems Limited Sachin Gupta Company Secretary and Compliance Officer Membership No: F12500