DEE DEVELOPMENT ENGINEERS LIMITED — Regulatory Filings 2026

May 23, 2026

DEE piping systems

Date: 23rd 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: Re-submission of Audio Recording of Earnings Call on Financial Results for the Quarter and Year ended 31st March, 2026

Dear Sir/ Madam,

Pursuant to Regulation 30 and 46(2)(oa) of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, we had submitted the audio call recording of the Company's Analyst Call/Investor presentation held on Friday, 22nd May, 2026 to discuss the Audited Financial Results of the Company for the Quarter and Year ended 31st March, 2026.

However, it has been brought to our notice that the said link is not accessible due to a technical error. In view of the above, we are hereby re-submitting the correct and functional link to access the audio recording of the said Earnings Conference Call, the same has also been uploaded on the website of the Company:

https://www.deeppiping.com/document/investor/audio/Investor_Call_on_22_May_2026.mp3

This is for your information and record please.

Yours faithfully,

For DEE Development Engineers Limited

RANJAN KUMAR
SARANGI

Digitally signed by
RANJAN KUMAR SARANGI
Date: 2026.05.23 14:01:05
+05'30'

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.deeppiping.com

CIN: L74140HR1988PLC030225 GST Registration No. 06AACCD0207H1ZA