Updates

Date: 10th August, 2026 Listing Compliance Department BSE Limited The National Stock Exchange of India Ltd. Phiroze Jeejeebhoy Tower, Exchange Plaza, Plot No. C/1, G Block, Dalal Street, Bandra Kurla Complex, Bandra (E), Mumbai – 400001 Mumbai – 400051 Scrip Code: 544198 Symbol: DEEDEV Sub: Disclosure under Regulation 7(2) of SEBI (Prohibition of Insider Trading) Regulations, 2015. Dear Sir/ Madam, In pursuance of the captioned subject, please find enclosed the disclosure dated August, 2026 received from “Mr. Krishan Lalit Bansal”, Promoter of the Company. This is to inform you that Company has issued 59,76,096 Equity Shares through Preferential Allotment to some allottees and as a result, shareholding of Mr. Krishan Lalit Bansal, Chairman & Managing Director has decreased by more than 2% of the post issue paid-up share capital of the Company. Further we wish to submit that the Company has received listing & trading approval on 23.07.2026 and 28.07.2026 respectively. The aforementioned information is also available on the Company’s website at https://www.deepiping.com/ Thanking you, Yours faithfully, For DEE Development Engineers Limited Ranjan Kumar Sarangi Company Secretary and Compliance Officer Membership No.: F8604 Address: Unit 1, Prithla - Tatarpur Road, Village Tatarpur Dist. Palwal, Faridabad, Haryana – 121 102 DEE DEVELOPMENT ENGINEERS LIMITED Regd. Office: Unit 1, Prithla-Tatarpur Road, Village Tatarpur, Dist. Palwal, Haryana- 121102, India Works: Unit 1, 2 & 3, Village Tatarpur, Dist. Palwal, Haryana- 121102, India T: +91 1275 248200, F: +91 1275 248314, E: info@deepiping.com, W: www.deepiping.com CIN: L74140HR1988PLC030225 GST Registration No. 06AACCD0207H1ZA FORM C Name of the company: DEE Development Engineers Limited ISIN: INE841L01016 Details of change in holding of Securities of Promoter, Member of the Promoter Group, Designated Person or Director of a listed company and immediate relatives of such persons and other such persons as mentioned in Regulation 6(2). Name, PAN, CIN/DIN, & address with Mr. Krishan Lalit Bansal, contact nos. Chairman & Managing Director PAN: AAHPB6940P DIN: 01125121 Address: H. No.: 1255, Escorts Nagar Faridabad - 121007 Email ID: kl*******@********.com Category of Person (Promoter/member of the Promoter promoter group/designated person/Director s/immediate relative to/others etc.) SECURITIES HELD PRIOR TO ACQUISITION ACQUISITION/ DISPOSAL Type of securities (For eg. – Shares, Warrants, Shares :3,52,00,366 Convertible Debentures, Rights entitlements etc.) No. and % of share holding 50.82% SECURITIES ACQUIRED/DISPOSED Acquired Type of securities (For eg. Shares, Warrants, Shares Convertible Debentures, Rights entitlement, etc.) No. 3,98,406 Value 199,999,812.00 Transaction Type (Purchase/sale Pledge / Purchase of Shares via Preferential Revocation / Invocation/ Others-please Allotment specify) SECURITIES HELD POST ACQUISITION/ DISPOSAL Type of securities (For eg. – Shares, Warrants, Shares Convertible Debentures, Rights entitlement, etc.) No. and % of shareholding 3,55,98,772 Equity Shares & 47.31% DATE OF ALLOTMENT ADVICE/ Date of credit of shares after receipt of ACQUISITION OF SHARES/ DISPOSAL Listing Approval: OF SHARES, SPECIFY From 29.07.2026 To 29.07.2026 DATE OF INTIMATION TO COMPANY 31.07.2026 Mode of acquisition /disposal (on market/ Preferential offer public/ rights/ preferential offer/ off market/ Inter-se transfer, ESOPs, etc.) Exchange on which the trade was executed BSE Limited & DEE DEVELOPMENT ENGINEERS LIMITED Regd. Office: Unit 1, Prithla-Tatarpur Road, Village Tatarpur, Dist. Palwal, Haryana- 121102, India Works: Unit 1, 2 & 3, Village Tatarpur, Dist. Palwal, Haryana- 121102, India T: +91 1275 248200, F: +91 1275 248314, E: info@deepiping.com, W: www.deepiping.com CIN: L74140HR1988PLC030225 GST Registration No. 06AACCD0207H1ZA National Stock Exchange of India Limited Details of trading in derivatives on the securities of the company by Promoter, member of the promoter group, designated person or Director of a listed company and immediate relatives of such persons and other such persons as mentioned in Regulation 6(2): NIL Yours faithfully, For DEE Development Engineers Limited Ranjan Kumar Sarangi Company Secretary and Compliance Officer Membership No.: F8604 Address: Unit 1, Prithla - Tatarpur Road, Village Tatarpur Dist. Palwal, Faridabad, Haryana – 121 102 DEE DEVELOPMENT ENGINEERS LIMITED Regd. Office: Unit 1, Prithla-Tatarpur Road, Village Tatarpur, Dist. Palwal, Haryana- 121102, India Works: Unit 1, 2 & 3, Village Tatarpur, Dist. Palwal, Haryana- 121102, India T: +91 1275 248200, F: +91 1275 248314, E: info@deepiping.com, W: www.deepiping.com CIN: L74140HR1988PLC030225 GST Registration No. 06AACCD0207H1ZA