Intimation of Closure of Trading window from 1st Oct 2026

Symbiox Investment & Trading Co. Ltd. 221, Rabindra Sarani, 3rd Floor Room No. 1, Kolkata - 700 007 Contact : 98302 74227 CIN : L65993WB1979PLC032012 Website : www.symbioxinvestment.com E-mail : symbioxinvestment100@gmail.com Date: 28" September, 2026 To, To, Compliance Department The Calcutta Stock Exchange Limited Metropolitan Stock Exchange of India Limited 7 Lyons Range, Vibgyor Towers, 4th floor, Plot No C 62, G - Block, Kolkata — 700 001 Opp. Trident Hotel, Bandra Kurla Complex, Bandra (E), Mumbai — 400 098 The Bombay Stock Exchange Limited Corporate Relationship Dept, Phiroze Jeejeebhoy Towers Dalal Street Mumbai- 400001 Sub: Intimation of Closure of Trading Window for the quarter ended on 30" Sept, 2026. Ref. Script Code: BSE-539278; MSEI- SYMBIOX; CSE- 029461 Dear Sir/Madam, This is to inform you that pursuant to the provisions of Securities and Exchange Board of India (Prohibition of Insider Trading) Regulations, 2015, the trading window for dealing in the securities of the Company shall remain close from 1% Oct, 2026 till the completion of 48 hours after the declaration of Unaudited Financial Results of the Company for the quarter ended September 30, 2026 by the Board of Directors of the Company. The date of Board Meeting for considering the financial results for the quarter ended on September 30, 2026, shall be inlormed in the due course. Kindly take the same on your records. Thanking you, Yours faithfully, For Syombiox Investment & Trading Co Ltd KhushoowPitti L Company Secretary & Compliance Officer N M. No. A25950