DEE DEVELOPMENT ENGINEERS LIMITED

==> picture [134 x 47] intentionally omitted <==

Date: 7[th] November, 2025

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 ] October, 2025 to 31[st] October, 2025.

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 Digitally signed by RANJAN KUMAR SARANGI SARANGI Date: 2025.11.07 18:47:29 +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

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

==> picture [134 x 47] intentionally omitted <==

		"Annexure A"	"Annexure A"	"Annexure A"	"Annexure A"	"Annexure A"	"Annexure A"	"Annexure A"
Nature of Activity	Name of Company	Customer's Industry	Opening As on 1st October, 2025	Order Inflow during October 2025 including Amendment s/Currency Fluctuations	Executed during October 2025 #	Closing as on 31st October, 2025	Cumulative Order Inflow for FY 2025- 26 (as of October 31st, 2025)	Cumulative Order Executed for FY 2025-26 (as of October 31st, 2025)
Pipings	DEE India	Power	351.24	9.80	9.27	351.78	328.58	141.12
		Oil & Gas	887.15	0.02	22.01	865.16	171.13	253.51
		Others*	5.99	0.46	0.41	6.04	32.10	29.54
	DEE Thailand##	Power	28.02	1.20	-	29.22	39.46	35.93
		Oil & Gas	16.14	2.19	2.59	15.73	13.65	39.02
Heavy Fabrication	DEE Fabricom India	Power	19.55	27.80	1.16	46.19	30.42	30.26
Gas Plants	Molsieve Designs Ltd ^	Others*	3.61	0.12	0.25	3.48	3.73	0.70
Power	DEE India**		-	3.43	3.43	-	19.15	19.15
	Malwa Power**		-	0.83	0.83	-	9.29	9.29
		Total	1,311.70	45.85	39.94	1,317.61	647.51	558.51

* Other Include Process, Chemical, scrap, rent etc.
**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. Now, Vide PSERC's order dated 18th October 2025, The PPA has been extended for another 10 years and the matter has been further listed for 6th November 2025 for determination of rate of tariff by Hon'ble PSERC. Kindly refer our press release dated 20th October 2025 for detailed information in this regard. Further, earlier, the tariff of DEE Development Engineers Limited (Power Division) were revised to Rs. 5.877 per unit by Hon'ble Punjab State Electricity Regulatory Commission 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 Punjab State Electricity Regulatory Commission. The Hon’ble High Court, vide its order dated 23rd October, 2025, has stayed the operation of the Commission’s order. a) As a result, 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. Kindlyrefer ourpress release dated 24th October 2025 for detailed information in this regard.
^ The Company acquired 70% of the equity shares of Molsieve Designs Limited on June 19, 2025. Accordingly, the order book of Molsieve Designs Limited has been considered for the first time in this statement.
For ease of understanding, we have considered the order inflow and execution amount to be the same for this period.
# 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 maybe lower than the total invoiced value for the sameperiod.
## Exchange rates for existing export orders of DEE Thailand considered INR 2.93772 per THB as on 31th October 2025. source link below: https://www.bot.or.th/en/statistics/exchange-rate.html

^ The Company acquired 70% of the equity shares of Molsieve Designs Limited on June 19, 2025. Accordingly, the order book of Molsieve Designs Limited has been considered for the first time in this statement. For ease of understanding, we have considered the order inflow and execution amount to be the same for this period. # 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 INR 2.93772 per THB as on 31th October 2025. source link below: https://www.bot.or.th/en/statistics/exchange-rate.html