Intimation of Closure of Trading Window for all Designated Persons and dependents for quarter ending on 30th June 2026

AvieCH SYSTEMS LIMITED a BSE Listed Company June 232026 To To The Head (Listing and Compliance) The Manager (Listing) The Metropolitan Stock Exchange of India Limited (MSEI) Listing Compliance Building A, Unit 205A,2nd Floor, BSE Limited Piramal Agastya Corporate Park P J Towers L.B.S Road, Kurla West, Mumbai 400 070 Dalal Street,Fort SYMBOL: ADTECH Mumbai 400 001 ISIN: INE257C01014 SYMBOL: ADTECH Stock Code: 544185 ISIN: INE257C01014 Dear Sir/Madam, Sub: Intimation of Trading Window Closure for Designated Persons -reg This is to inform you that in line with the regulatory requirements prescribed under The SEBI (Prohibition of Insider Trading) Regulations, 2015 as amended from time to time and pursuant to Company’s Code of Conduct for Regulating, Monitoring and Reporting Trading in Securities of the Company by Insiders, the trading window for dealing in securities of the Company shall remain closed for all Designated Persons and their dependents from July 01, 2026, fil the completion of 48 hours after the announcement/declaration of Un- Audited Financial Results of the Company for the quarter ended June 30, 2026. This information has already been communicated to all Designated Persons of the Company. The date of meeting of the Board of Directors to approve the Un- Audited Financial Results of the Company for the quarter ended June 30, 2026 will be informed in due course. The above intimation will also be available on the Company’s website - www.adtechindia.com We request you to kindly take note of the above Thanking you, Yours faithfully For Adtech Systems Limited Digitally signed by S S Balamurali Bpaalraem u3r0al3i6 0023 16:54:52 +05'30" S Balamurali Company Secretary and Compliance Officer ACS 11779 ADTECH SYSTEMS LIMITED, EMMAR GRANDE, TC 30/1868 (1], 1st Floor, HARITA GIRI, KANJIRAMPARA PO, THIRUVANANTHAPURANI-695030, KERALA TEL: 0471-2363805 REGD OFFICE: 2/796, FIRST MAINROAD, KAZURA GARDEN, SAKSHI TOWERS, 2nd FLOOR, NEELANKARAI, CHENNAI-600 115, TAVILNADU CIN#L33111TN1990PLCO18678, Email: mr@ackechindia.in, Website: www adtechindia. coAm KSI,DC CO-PROMOTED COMPANY