DEE DEVELOPMENT ENGINEERS LIMITED — Earnings Release 2026

Feb 6, 2026

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Date: 6[th] February, 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: Rectification of Press Release on Un-Audited Financial Results of DEE Development Engineers Limited for the Quarter and Nine-months period ended on 31[st] December, 2025

Dear Sir/ Madam,

Pursuant to Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015. We have filed the Press Release on Un-Audited Financial Results of the Company for the Quarter and Nine-months period ended on 31[st] December, 2025 on 3[rd] February, 2026. However, it has come to our notice subsequently that there are few inadvertent errors as mentioned below. Therefore, please find enclosed herewith Revised Press Release.

Operating EBITDA has been adjusted for the one-time liability of Rs. 4.2 Cr on account of new labour code, in both Dec’25 Qtr and 9M Dec’25.

The above information is also available on the Company’s website at www.deepiping.com.

This is for your information and record please.

Yours faithfully,

For DEE Development Engineers Limited

Ranjan Kumar Digitally signed by Ranjan Kumar Sarangi Date: 2026.02.06 14:45:19 Sarangi +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.deepiping.com CIN: L74140HR1988PLC030225 GST Registration No . 06AACCD0207H1ZA

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Q3FY26 Earnings Press Release

Dee Development Engineers delivers stellar performance across all key parameters, aided by healthy execution Q3FY26 Revenue stood at ₹286.7 Cr, registering YoY growth of 77% Q3FY26 Operating EBITDA surged to ₹43.40 Cr, up by 666.4% YoY Q3FY26 PAT grew to ₹18.6 Cr Closing Order Book stands at ₹1,302.73 crore as on Dec 31, 2026

Palwal, Haryana, 3[rd] February 2026: DEE Development Engineers Limited , India’s largest integrated process piping solutions provider, announced its results today for the quarter and nine months ended 31[st] December, 2026.

₹ Crore

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Q3 Q3 Q2 9M 9M
Financial Summary YoY% QoQ% YoY% FY25
FY26 FY25 FY26 FY26 FY25
Revenue from
286.7 162.0 77.0% 270.0 6.2% 780.4 541.0 44.3% 827.4
Operations
Operating EBITDA 43.40 5.7 666.4% 44.1 (1.4%) 123.4 60.3 104.8% 123.8
Operating EBITDA
15.2% 3.5% 1170 bps 16.3% -110 bps 15.8% 11.1% 470 bps 15.0%
Margin
PAT 18.6 (13.3) - 17.8 4.2% 49.5 12.1 308.2% 43.6
PAT Margin 6.5% (8.2%) - 6.6% (10) bps 6.3% 2.2% 410 bps 5.3%
Diluted EPS 2.7 (2.1) - 2.6 4.3% 7.1 1.9 279.3% 6.6
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Key Financial & Operational Highlights

• Q3FY26 Revenue grew by 77% YoY at ₹286.7 Cr driven by healthy execution momentum in the Piping & Fittings segment, supported by strong supplies to the Oil & Gas sector

• Operating EBITDA grew by 666.4 % YoY, driven by operating leverage on the back of higher execution levels and improved capacity utilization.

• Despite an Operating EBITDA loss of ₹6.4 crore in 9M FY26 in Non-Core Business & additional one time liability on account of Labour Code of ₹ 4.2 crore, the Company has achieved an Operating EBITDA of ₹123.4 crores, representing an EBITDA margin of 15.8%. Excluding this impact, EBITDA and EBITDA margin would have been Rs134.0 crores and 18.04%, respectively.

• Core business received new order inflows of ₹ 251 crore in the quarter, underscoring sustained demand from Power sector.

• During Q3 FY26, the implementation of the new labor codes led to a one-time operational impact of ₹4.2 crore for the Company

Commenting on the results, Mr. Krishan Lalit Bansal, Chairman, DEE Development Engineers Limited said :

“During Q3 FY26, we delivered a strong set of operating and financial results, with healthy growth in revenue, Operating EBITDA, and PAT, driven by robust execution in our pipe and fitting segment catering to the oil & gas sector. At a macro level, India’s capital expenditure cycle is gaining momentum, with corporates across infrastructure, energy, and industrial segments expected to significantly ramp up investment in plant and equipment supporting demand for project delivery and capacity expansion. Additionally, the implementation of India’s new labour codes had a one-time accounting impact in earnings this quarter as past service obligations had to be adjusted, we believe these changes should translate into a more resilient workforce and strengthen employee security over time.

In our core business, excluding the power generation division, the Anjar Pipe Fabrication Unit, which commenced operations in September 2025, was fully operational during the quarter and is consistently benefiting from operating leverage as utilisation ramps up, supporting margin expansion. The Anjar Seamless Pipe Plant remains on schedule for commercialisation in the current quarter and will further strengthen our capacity for execution in high-growth

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segments. We also see encouraging visibility for order flows in the coming months from the power segment, particularly in the piping and fitting business, underpinning a healthy project funnel and sustained execution momentum.

In the non-core power generation segment, tariff revision matters are currently under litigation, and the company is strategically working on restructuring initiatives to improve long-term sustainability and operational efficiency, positioning the business for future stability.

As a leading player in engineering and piping solutions, Dee Development Engineers leverages deep technical expertise, rich industry experience, and a proven track record of successfully executing complex projects across diverse geographies. With a strong footprint across energy, infrastructure, and industrial end markets, we remain confident in our ability to deliver sustainable growth and create long-term value for our stakeholders in the quarters ahead.”

About DEE Development Engineers Limited

DDEL is the largest player in process piping solutions in India in terms of installed capacity, with strategically located state-of-the-art Manufacturing Facilities. It is an engineering company providing specialized process piping solutions for industries such as oil and gas, power (including nuclear), process industries and chemicals through engineering, procurement and manufacturing services. DEE also manufactures and supplies piping products such as high-pressure piping systems, piping spools, high frequency induction pipe bends, LSAW pipes, industrial pipe fittings, pressure vessels, industrial stacks, modular skids and accessories including boiler superheater coils, de-super heaters and other customized manufactured components, while also specializing in handling complex metals such as varying grades of carbon steel, stainless steel, super duplex stainless steel, alloy steel and other materials including Inconel and Hastelloy in our manufacturing processes.

For further information, please contact:

Brham Prakash Yadav Chief Financial Officer Phone: +91 1275–248200 Email: brhamp.yadav@deepiping.com

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