DEE DEVELOPMENT ENGINEERS LIMITED — Regulatory Filings 2026

Mar 9, 2026

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Date: 9[th] March 2026

Listing Compliance Department

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

Subject: Intimation of Updates on the Order Book 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 1[st ] February, 2026 to 28[th] February, 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

Digitally signed by Ranjan Kumar Ranjan Kumar Sarangi Sarangi Date: 2026.03.09 06:39:36 +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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		"Annexure A"	"Annexure A"	"Annexure A"	"Annexure A"	"Annexure A"	"Annexure A"	INR in Crores
Nature of Activity	Name of Company	Customer's Industry	Opening As on 1st February, 2026	Order Inflow during February 2026 including Amendments/Cu rrency Fluctuations	Executed during February 2026 #	Closing as on 28th February, 2026	Cumulative Order Inflow for FY 2025- 26 (as of February 28, 2026)	Cumulative Order Executed for FY 2025-26 (as of February 28, 2026)
Pipings	DEE India $	Power	460.27	535.4~~0~~	12.32	983.36	1,029.48	210.44
		Oil & Gas	751.57	1.93	117.48	636.02	215.16	526.68
		Others*	6.89	30.18	16.82	20.24	72.99	56.23
	DEE Thailand##	Power	48.92	86.2~~1~~	0.49	134.64	159.61	50.66
		Oil & Gas	11.76	4.26	5.11	10.91	33.50	63.69
Heavy Fabrication	DEE Fabricom India	Power	40.19	89.28	4.62	124.86	149.64	70.81
Gas Plants	Molsieve Designs Ltd	Others*	0.31	2.88	0.04	3.14	6.93	4.25
Power	DEE India**		-	3.12	3.12	-	32.93	32.93
	Malwa Power**		-	0.91	0.91	-	13.73	13.73
		Total	1,319.91	754.16	160.91	1,913.16	1,713.96	1,029.42
$ We are also L1 fo crores has not bee	r orders worth IN n included in the	R 211 crores from reputed clients, for which formal purchase orders are expected to be awarded shortly. For clarity, this 211 above table.
* Other Include Process,Chemical,s		crap,rent etc.
** For ease of understanding, we have considered the order inflow and execution amount to be the same for this period. There are Power Purchase Agreements (PPA) in place with Punjab State Power Corporation Limited for our Biomass Power Generation business. The average billing for the preceding two fiscal years has been ₹80 crore per year. 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, however, the Company had filed the review petition for revision of these tariff rates. Vide PSERC's order dated 18th October 2025, The PPA has been extended for another 10 years. Punjab State Power Corporation Limited (PSPCL) has prefered an appeal against the order of Hon'ble PSERC's on determination of rate of tariff and renewal of PPA, Malwa Power Private Limited has filed caveat in Appeal. The Hon'ble APTEL in its Order dated 08 December 2025 has confirmed to supply the power @ Rs. 3.50 per units until finally decided by it. 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 = 2.91273 INR. source link below: https://www.oanda.com/currency-converter/en/?from=THB&to=INR&amount=1

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, however, the Company had filed the review petition for revision of these tariff rates. Vide PSERC's order dated 18th October 2025, The PPA has been extended for another 10 years. Punjab State Power Corporation Limited (PSPCL) has prefered an appeal against the order of Hon'ble PSERC's on determination of rate of tariff and renewal of PPA, Malwa Power Private Limited has filed caveat in Appeal. The Hon'ble APTEL in its Order dated 08 December 2025 has confirmed to supply the power @ Rs. 3.50 per units until finally decided by it.

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