Closure of Trading Window

(Formerly – Kilpest India Limited) Ref. No.P-66/2026-27/42 September 25, 2026 The Relationship Manager, Department of Corporate Relations BSE Limited, P.J. Towers, Dalal Street Fort, MUMBAI – 400 001 Dear Sir, SUB- Intimation of Closure of Trading Window in terms of SEBI (Prohibition of Insider Trading) Regulations 2015 ('PIT Regulations') In accordance with the Company's Code of Conduct for Prohibition of Insider Trading, framed pursuant to the 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 closed for Directors, Designated Persons and their immediate relatives with effect from 1st October, 2026 till 48 hours after the announcement of the Unaudited Financial Results for the quarter and half-year ending on 30th September 2026 to the public (both days inclusive). The date of Board Meeting of the Company to approve the Unaudited Financial Results for the quarter and half-year ending on 30th September, 2026 will be informed in due course. You are requested to kindly take the above information on record. Thanking You, For 3B BlackBio Dx Limited (Formerly, Kilpest India Limited) Nikhil Kuber Dubey Whole Time Director DIN: 00538049 Encl: As above Regd. Office & Factory : 7-C | Industrial Area | Govindpura | Bhopal – 462023 | (M.P.) | INDIA CIN : L24211MP1972PLC001131 Ph.: 91-755-2586536, 2586537 Email : info@kilpest.com Visit us at : www.kilpest.com