Investor Presentation

DIAMOND POWER INFRASTRUCTURE LIMITED November 3, 2026 Corporate Relations Department Listing Department BSE Limited National Stock Exchange of India Limited 2nd Floor, P.J. Towers Exchange Plaza, Plot No. C/1, G- Block, Dalal Street, Bandra Kurla Complex, Bandra (E), Mumbai – 400 001 Mumbai – 400 051 Scrip Code: 522163 Scrip Symbol: DIACABS Sub.: Investor Presentation on Financial Results for Q2 FY2027 Re: ISIN-INE989C01038 Dear Sir/Madam, Pursuant to Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, we are submitting herewith the Investor Presentation on the Unaudited Financial Results of the Company for the quarter and half year ended September 30, 2026, for the information of the Members and other stakeholders. The Investor Presentation is also available on the website of the Company at www.dicabs.com . Thanking you, Yours sincerely, For, Diamond Power Infrastructure Limited Jayesh Patel Company Secretary ICSI M. No.: A14898 Encl: As above Regd. Office: Westgate (True Value) D Wing, 17th Floor, Office No 1703 to 1707, Nr. YMCA Club, SG Highway, Makarba, Ahmedabad, Gujarat – 380051 CIN: L31300GJ1992PLC018198 Email: cs@dicabs.com Website: www.dicabs.com Tel No.- 02667-251354/251516 Fax No.-02267-251202 REVENUE Q2 FY27 H1 FY27 ₹1,032 cr ₹1,722 cr +135% YoY +133% YoY EBITDA Q2 FY27 H1 FY27 ₹133 cr ₹218 cr +189% YoY · 12.9% +182% YoY · 12.7% Q2 FY27 H1 FY27 ₹108 cr ₹166 cr 3.9×YoY · 10.5% 2.4×YoY · > full FY26 • Growth led by MV cables (11 / 33 kV), 66 kV EHV cables and AL-59 conductors; data-centre cables —a new, independent product line from the copper cable line —contributed ₹242 cr, 23% of Q2 revenue Q2 REVENUE MIX: CABLES 40%, DATA-CENTRE CABLES 23% Cables by voltage (₹412 Cr, ex data-centre) 6% 3% 31% ₹1,032 ₹412 Cr total Cr cables Cables ₹412 Conductors ₹315 33 kV ₹199 11 kV ₹128 Data-centre ₹242 Others ₹62 3.3 kV solar ₹39 66 kV EHV ₹34 1.1 kV LT ₹11 22 kV <₹1 DATA-CENTRE CABLES MV 11–33 kV ₹242 Cr 79% 23% of Q2 revenue —an of cable revenue ex data-centre, ₹327 independent product line from the Cr; 50% of all cables including data- new copper cable line; nil in Q1 centre Source: sales MIS, Sep-26 —pending value of live orders on variable-price basis. Live orders total ₹4,829 cr, of which ₹1,094 cr already executed. Conductors include ₹974 cr of AL-59 Lapwing for the HVDC programme. Data-centre orders of ₹485 cr basic (~₹620 cr with the 28% PV clause), ₹242 cr executed in Q2 FY27, are shown as a separate data-centre line. All orders carry price-variation clauses; at present market prices the outstanding book is worth about 15% more than its quoted value, ~₹4,300 cr. Data-centre orders of ₹485 cr basic (₹435 cr + ₹50 cr AurionPro), ~₹620 cr with the 28% PV clause; ₹242 cr executed in Q2 —L&T, AurionPro, Sterling & Wilson and Blue Star EPC orders Order inflow and book-to-bill behind the firm order book · ₹ crore Orders won vs revenue executed (₹ cr) —inflow keeps running ahead of execution 3,122 2,217 2,043 1,910 1,722 1,115 FY25 FY26 H1 FY27 Order inflow (implied) Revenue executed Implied inflow = closing firm order book –opening book + revenue for the period. Order book at quoted value; revenue includes PV pass-through and other sales —indicative only. Source: sales MIS; order book Mar-24 ₹1,100 cr, Mar-25 ₹2,028 cr, Mar-26 ₹3,240 cr, Sep-26 ₹3,735 cr. HOW THE PROJECT WAS BUILT Board Capex Sub-committee evaluation since August 2026 · Polymer Expert mandated to prepare the report from first principles · Dr G L Gupta as HOD, Polymer Project · machinery frozen at the Project Review of 28 September 2026 · Phase I machinery price finalised 12 October · Phase II line quotation received 29 September