Re-appointment of director who retires by rotation and being eligible, offers for re-appointment

(Formerly – Kilpest India Limited) Ref. No.P-66/2026-27/45 September 30, 2026 The Relationship Manager, Department of Corporate Relations BSE Ltd, P.J. Towers, Dalal Street Fort, MUMBAI – 400 001 SUBJECT: Disclosure under Regulation 30 of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015 (‘SEBI Listing Regulations’). Dear Sir, Pursuant to the provisions of Regulation 30 of the SEBI Listing Regulations, we wish to inform you that at the 54th Annual General Meeting (AGM) of the Company held on 29th September, 2026, the Members have approved the re-appointment of Mrs. Mithla Dubey (DIN: 03597415) aged 79 years who retires by rotation and being eligible, offers herself for re-appointment. The Details required under Regulation 30 of SEBI Listing Regulations read with SEBI Master Circular No. SEBI/HO/49/14/14(7)2025-CFD-POD2/I/3762/2026 dated January 30, 2026 , are enclosed herewith as Annexure-A. Kindly take the same on records. Yours faithfully, For 3B BlackBio Dx Limited (Formerly, Kilpest India limited), Navneet Kaur Company Secretary ACS No.: 29130 Encls: 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 (Formerly – Kilpest India Limited) Annexure-A S. Particulars of Information of such event(s) No. information that is required to be provided 1 Name Mrs. Mithla Dubey 2 Reason for change Re-appointment of Mrs. Mithla Dubey aged 79 years who retires by rotation and being eligible, offers herself for re-appointment as per Articles of Association of the company. 3 Date of appointment/re- Re-appointment of Mrs. Mithla Dubey aged 79 years appointment /cessation & who retires by rotation and being eligible, offers term of appointment/re- herself for re-appointment as per Articles of appointment. Association of the company. 4 Brief Profile (In case of As per the applicable provisions of the Companies appointment/re- Act, 2013 and amended SEBI (Listing Regulations) appointment) the Company should have at least one woman director. In lieu to this, Mrs. Mithla Dubey, aged 79 years was appointed. She is generally associated with the Company as Director promoter and is actively involved in the social areas of the society. 5 Disclosure of relationships Mother of Mr. Dhirendra Dubey, Chairman cum between directors (in case Managing Director and Mr. Nikhil Kuber Dubey, of appointment of a Whole-Time Director cum CFO. director) 6 Confirmation in compliance Mrs. Mithla Dubey is not debarred from holding the with SEBI Letter dated office of director by virtue of any SEBI order or any June 14, 2018 read along other such authority. with BSE circular Number LIST/COM/14/2018-19 dated June 20, 2018