Bagging/Receiving of orders/contracts

Date: 8th October, 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 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 (“SEBI Listing Regulations”) Pursuant to Regulation 30 of SEBI Listing Regulations, we would like to inform that Wholly Owned Subsidiary of the Company, M/s DEE Fabricom India Private Limited has received an email with intent for supply of Windmill towers. The details as required under SEBI Listing Regulations read with Master Circular no. SEBI/HO/CFD/PoD2/CIR/P/0155 dated November 11, 2024 are enclosed as Annexure I. This is for your information and record please. 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 Annexure – I Disclosure of Information pursuant to Regulation 30 of the SEBI Listing Regulations read with SEBI Master Circular no. SEBI/HO/CFD/PoD2/CIR/P/0155 dated November 11, 2024: S.NO. PARTICULARS DETAILS a Name of the entity awarding the order(s) / Due to commercial issue, the Company contract(s) cannot disclose the name of the Customer. b Significant terms and conditions of Supply of Windmill Tower, ENV 5 mw order(s)/contract(s) awarded in brief c Whether order(s) / contract(s) have been Domestic Entity awarded by domestic/ international entity d Nature of order(s)/ contract(s) Email for supply of Windmill Tower e Whether domestic or international Domestic f Time period by which the August 2027 order(s)/contract(s) is to be executed g Broad consideration or size of the Approximately Rs. 55 Crores order(s)/contract(s) (Exclusive of GST) h Whether the promoter/ promoter group / Not applicable group companies have any interest in the entity that awarded the order(s)/contract(s)? If yes, nature of interest and details thereof i Whether the order(s)/contract(s) would fall Not applicable within related party transactions? If yes, the same is done at “arms’ length” 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