Updates

Date: 10 September 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: REVISED 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 August, 2026 to 31st August, 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 Company Secretary and Compliance Officer Membership No.: F8604 Address: Unit 1, Prithla - Tatarpur Road, Village Tatarpur Dist. Palwal, 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 "Annexure A" INR in Crores Nature of Name of Customer's Opening Order Inflow Executed during Closing as on Cumulative Order Inflow Cumulative Order Cumulative Order Activity Company Industry As on 1st during August August 2026 # 31st August, for FY 2026-27 (as of 31st Inflow for FY 2026-27 Executed for FY August, 2026 including 2026 August, 2026) including (as of 31st August, 2026-27 (as of 31st 2026 Amendments/Cur Amendments/Currency 2026) August, 2026) rency Fluctuations Fluctuations Power 1,219.86 7.16 21.95 314.55 393.01 129.80 1,205.07 DEE India $ Oil & Gas 838.78 54.26 51.71 841.32 455.30 421.33 195.51 Pipings Others 14.26 0.30 0.56 14.00 35.63 19.93 38.69 Power 170.10 28.40 0.74 41.73 23.23 37.24 197.76 DEE Thailand# Oil & Gas 0.17 0.00 - -5.30 - 4.35 0.17 Heavy DEE Fabricom Power 181.06 -1.18 6.56 84.37 84.37 27.55 Fabrication India 173.32 Molsieve Designs Gas Plants Others 4.57 0.45 1.05 2.72 4.30 1.97 3.96 DEE India** - 3.34 3.34 17.22 17.22 17.22 Power Power generation - 0.23 0.23 2.97 2.97 2.97 Malwa Power** unit Pellet unit 1.22 1.22 6.26 6.26 6.26 Total 2,428.20 94.18 87.37 2,435.61 955.46 972.62 461.55 ** 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 has filed 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 =2.87705 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