DEE DEVELOPMENT ENGINEERS LIMITED — Regulatory Filings 2026

Jun 8, 2026

DEE piping systems

Date: 8th June 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

SUBJECT: INTIMATION OF UPDATES ON THE MONTHLY EXECUTION AND ORDER POSITION OF THE COMPANY

Dear Sir/Ma’am,

Please find enclosed herewith as “Annexure-A” the updates on the Order Book of the Company for the period ranging from 1st May, 2026 to 31st May, 2026.

The above information is being made available on the website of the Company www.deepiping.com.

This is for your information and record please.

Yours faithfully,

For DEE Development Engineers Limited

Ranjan

Kumar Sarangi
Date: 2026.06.08
07:50:07 +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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DEE piping systems

"Annexure A"

INR in
Crores

Nature of Activity	Name of Company	Customer's Industry	Opening As on 1st May, 2026	Order Inflow during May 2026 including Amendments/Currency Fluctuations	Executed during May 2026 #	Closing as on 31st May, 2026	Cumulative Order Inflow for FY 2026-27 (as of 31st May, 2026)	Cumulative Order Executed for FY 2026-27 (as of 31st May, 2026)
Piping	DEE India $	Power	1,011.53	274.79	34.90	1,251.42	283.37	36.76
Oil & Gas	562.84	358.49	40.15	881.18	377.28	79.84
Others*	19.51	-6.49	10.72	2.29	1.01	16.93
DEE Thailand##	Power	191.35	3.22	9.81	184.76	10.46	18.97
Oil & Gas	9.39	-6.48	2.07	0.84	5.76	3.22
Heavy Fabrication	DEE Fabricom India	Power	112.03	2.84	4.67	110.20	3.26	9.56
Gas Plants	Molsieve Designs Ltd	Others*	3.17	0.09	0.05	3.22	0.34	0.34
Power	DEE India**		-	3.24	3.24	-	6.71	6.71
Malwa Power**	Power generation unit	-	0.65	0.65	-	2.46	2.46
Pellet unit		1.57	1.57		2.72	2.72
		Total	1,909.82	631.91	107.83	2,433.90	681.85	177.51

** For ease of understanding, we have considered the order inflow and execution amount to be the same for this period. The Hon'ble Punjab State Electricity Regulatory Commission (PSERC) had passed an interim Order revising the tariff of Malwa Power Private Limited for a fixed tariff of Rs. 3.50 per unit as the PPA was expired on 26.04.2025, then the Company had filed the review petition for revision of these tariff rates. Vide PSERC's Final order dated 27 March 2026, tariff rate for FY 2025-26 was fixed at Rs 5.224/kWh (Rs 0.97 fixed + Rs 4.254 variable) with an annual escalation of 5% on variable cost. Hence the tariff rate for FY 2026-27 shall be Rs. 5.437 per kWh. As mentioned in the Press Release uploaded in NSE & BSE on 01/04/2026, the Company may file an appeal before the APTEL, New Delhi and challenge the order passed by the PSERC determining the tariff for the plant with a prayer to increase the tariff as per the CERC Regulations. Further, the projected revenue for FY 27 shall be ~ Rs. 47.71 crores which includes Rs. 23.4 crores from the pallete plant.

Tariff of DEE Development Engineers Limited (Power Division) were revised to Rs. 5.877 per unit by Hon'ble PSERC vide its order dated 20.08.2025, however, the Company had filed appeal before hon'ble High Court of Punjab & Haryana against the order of Hon'ble PSERC. The Hon'ble High Court, vide its order dated 23rd October, 2025, has stayed the operation of the Commission's order. As a result:
a) The Company shall continue to supply electricity to PSPCL at the prevailing tariff of ₹7.47 per unit.
b) Any recovery claimed by PSPCL on account of tariff differential shall remain withheld until the final disposal of the matter by the Hon'ble High Court.

The total value of orders executed during the period represents the aggregate amount of invoices raised on customers. However, the revenue recognized under Indian GAAP (Ind AS 115 – Revenue from Contracts with Customers) may differ from the invoiced amount, owing to the application of various Incoterms and performance obligations under respective contracts. Consequently, revenue recognition is aligned with the transfer of control of goods or services to the customer, and not merely based on invoicing milestones. Accordingly, the revenue recognized during the reporting period may be lower than the total invoiced value for the same period.

Exchange rates for existing export orders of DEE Thailand considered at 1 THB = 2.90908 INR.

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