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DEE DEVELOPMENT ENGINEERS LIMITED Regulatory Filings 2026

May 21, 2026

62378_rns_2026-05-21_cfb59c7a-bdab-453b-b528-97442685dcce.pdf

Regulatory Filings

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DEE piping systems

Date: 21st May, 2026

Listing Compliance Department

BSE Limited Phiroze Jeejeebhoy Tower, Dalal Street, Mumbai - 400001 Scrip Code: 544198 The National Stock Exchange of India Ltd. Exchange Plaza, Plot No. C/1, G Block, Bandra Kurla Complex, Bandra (E), Mumbai - 400051 Symbol: DEEDEV

Sub: Disclosure under Regulation 30 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 - Receipt of Major Order by Material Subsidiary

Dear Sir/ Madam,

We are pleased to announce that DEE piping System (Thailand) Co. Limited, a material subsidiary of the Company, entered into Reservation Agreement with an International EPC Company and received a significant order/contract;

Pursuant to Regulation 30 read with Schedule III of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 ("SEBI LODR Regulations"), details given in Annexure A;

This is for your information and record please.

Yours faithfully,

For DEE Development Engineers Limited

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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: [email protected], W: www.deepiping.com

CIN: L74140HR1988PLC030225 GST Registration No. 06AACCD0207H1ZA


DEE piping systems

ANNEXURE-A

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) / contract(s) Due to commercial issue, the Company cannot disclose the name of the Customer.
b Significant terms and conditions of order(s)/contract(s) awarded in brief 60% of our total capacity for the HRSG pipe spool fabrication including shop detailing, procurement and manufacturing.
c Whether order(s) / contract(s) have been awarded by domestic/ international entity International Entity
d Nature of order(s)/ contract(s) Agreement to book the capacity of facility
e Whether domestic or international International
f Time period by which the order(s)/contract(s) is to be executed Agreement effective from June 1, 2027 through December 31, 2029 (Term)
g Broad consideration or size of the order(s)/contract(s) Minimum of US$ 15.27 million per annum.
h Whether the promoter/ promoter group / group companies have any interest in the entity that awarded the order(s)/contract(s)? If yes, nature of interest and details thereof Not applicable
i Whether the order(s)/contract(s) would fall within related party transactions? If yes, the same is done at “arms’ length” Not applicable

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: [email protected], W: www.deepiping.com

CIN: L74140HR1988PLC030225 GST Registration No. 06AACCD0207H1ZA