We hereby submit the intimation of Closure of Trading Window.

September 25, 2026 BSE Limited National Stock Exchange of India Limited Corporate Relationship Department, Exchange Plaza, 5th Floor, Plot No C/1, Phiroze Jeejeebhoy Towers, G Block, Bandra-Kurla Complex, Dalal Street, Mumbai 400 001 Bandra (East), Mumbai - 400 051 Scrip Code: 540735 Symbol: IRIS Dear Sir / Madam, Sub: Intimation of closure of trading window. This is to inform you that in terms of the Company’s “Code of Conduct to Regulate, Monitor and Report Trading by Designated Persons and Code of Practices and Procedures for Fair Disclosure of Unpublished Price Sensitive Information” (“Company’s code”) adopted by the Company under the Securities and Exchange Board of India (Prohibition of Insider Trading) Regulation, 2015 (“PIT Regulations, 2015”) read with amendments thereto, the trading window for dealing in securities of the Company shall remain closed for all the “Designated Persons” including their immediate relatives and “Insiders” as defined in the Company’s Code and the PIT Regulations, 2015 commencing from Thursday, October 1, 2026 till the expiry of 48 hours after the declaration of Un-Audited Financial Results (Standalone & Consolidated) of the Company for the quarter ended September 30, 2026. The date of the Board meeting for consideration, approval and declaration of the Un-Audited Financial Results for the quarter and half year ended September 30, 2026, will be intimated in due course. Kindly take the same on record. Thanking you, Yours faithfully, For IRIS RegTech Solutions Limited (Formerly known as IRIS Business Services Limited) Santosh Sharma Company Secretary & Compliance Officer (ICSI Membership No. ACS 35139) IRIS RegTech Solutions Limited (Formerly known as IRIS Business Services Limited) 1405–1411, Plutonium Business Park, Turbhe, Navi Mumbai – 400703 Tel: 022 6723 1000 | Fax: +91 22 2781 4434 | Email: cs@irisbusines.com | Website: www.irisregtech.com CIN L72900MH2000PLC128943 | GSTIN 27AAACI9260R1ZV