Analysts/Institutional Investor Meet/Con. Call Updates

Date: September 22, 2026 BSE Limited National Stock Exchange of India Limited Listing & Compliance Department Listing & Compliance Department Phiroze Jeejeebhoy Towers, Exchange Plaza, C-1 Block G, Dalal Street, Mumbai - 400001 Bandra Kurla Complex, Bandra (E), Mumbai – 400051 Security Code : 544198 Symbol: DEEDEV Sub: Intimation regarding the Analysts/ Institutional Investors Meet Ref: Disclosure under Regulation 30 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, as amended (“SEBI Listing Regulations”) Dear Sir/Ma’am, In terms of Regulation 30 of SEBI Listing Regulations, please find below the Schedule of Analyst/ Institutional Investor Meet: Name of Date of Analyst/ Meeting Type Organized By Venue Institutions/ Institutional Investor Meet Investor Meet Arihant Bharat Connect Monday, Online Arihant Virtual Conference: 28th September, Rising Stars 2026 2026 Note(s): 1. The above schedule is subject to changes, and the changes may happen due to exigencies on the part of the Analysts/ the Company. 2. No unpublished price sensitive information pertaining to the Company is/will be shared in said meet with Analysts. The above intimation shall also be made available on the website of the Company at www.deepiping.com This is for your Information and Records. 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