Receipt of Letter of Intent / Order from Purvanchal Vidyut Vitran Nigam Limited

DIAMOND POWER INFRASTRUCTURE LIMITED August 12, 2026 To, To, The Manager – Listing Department The Manager – Listing Department BSE Limited National Stock Exchange of India Ltd. Phiroze Jeejeebhoy Towers, Exchange Plaza, C-1, Block G, BKC, Dalal Street, Mumbai – 400 001 Bandra (East), Mumbai – 400 051 Scrip Code: 522163 Symbol: DIACABS Sub: Disclosure under Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 – Receipt of Letter of Intent / Order for supply of 33 kV HT XLPE Cable. Dear Sir/Madam, Pursuant to Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 read with Para A of Part A of Schedule III thereto and the SEBI Master Circular No. SEBI/HO/CFD/PoD2/CIR/P/2023/120 dated July 11, 2023 (as amended), we wish to inform the Exchange that the Company has received a Letter of Intent dated 12 August 2026 from Purvanchal Vidyut Vitran Nigam Limited (a distribution company of Uttar Pradesh Power Corporation Limited) for the supply of 33 kV HT XLPE cable. The details required under Regulation 30 of the Listing Regulations, read with the applicable SEBI Circular, are enclosed as Annexure A. This intimation is also being made available on the website of the Company at www.dicabs.com. You are requested to kindly take the above on record. Thanking you, Yours faithfully, For Diamond Power Infrastructure Limited Jayesh Patel Company Secretary ICSI M. No.: A14898 Encl.: Annexure A – Disclosure under Regulation 30; Regd. Office & Factory: Vadadala, Phase – II Savli, Vadodara, Gujarat, India-391520 CIN: L31300GJ1992PLC018198 Email: cs@dicabs.com, Website: www.dicabs.com Tel No.- 02667-251354/251516 Fax No.-02267-251202 DIAMOND POWER INFRASTRUCTURE LIMITED Annexure A Disclosure of details under Regulation 30 of the Listing Regulations read with the applicable SEBI Circular – Award / Receipt of Order Sr. Particulars Details 1 Name of the entity awarding Purvanchal Vidyut Vitran Nigam Limited (PuVVNL), a power the order / contract distribution company (Discom) of Uttar Pradesh Power Corporation Limited (UPPCL), a Government of Uttar Pradesh undertaking. The order has been placed after approval of the Corporate Stores Purchase Committee (CSPC) of UPPCL, Lucknow. 2 Nature of the order / contract • Product: 33 kV HT XLPE cable, size 3C x 300 sq. mm • Ordered quantity: 250 km • Against Tender Specification No. EAV-06/2026-27 (LOI No. 2794/MD/PuVVNL(V)/MM-I/EE-I/EAV-06/2026-27 dated 12.08.2026) • Price basis: Variable as per IEEMA (Base Date: 01.02.2026); GST extra at actuals • Delivery to three Discoms – MVVNL (150 km), DVVNL (30 km) and PVVNL (70 km) • Guarantee: 36 months from commissioning or 42 months from dispatch, whichever is earlier • Security deposit: 10% of order value 3 Whether order / contract Domestic awarded by domestic or international entity 4 Broad consideration / size of ₹ 61,03,55,000/- (Rupees Sixty-One Crore Three Lakh Fifty- the order Five Thousand only), inclusive of GST @ 18%. Value excluding GST: ₹ 51,72,50,000/-. The order is on a variable-price basis (IEEMA); the value indicated is the base price and the final realisation will be as per the applicable price-variation formula. 5 Time period by which the By January 2027 (scheduled deliveries from September 2026 order / contract is to be to January 2027). executed 6 Significant terms and Payment 30 days after receipt of invoice. Price is variable conditions in brief as per IEEMA (Base date:01.02.2026) 7 Whether the promoter / No. None of the promoter / promoter group / group promoter group / group companies has any interest in the entity awarding the order. companies have any interest in the entity that awarded the order / contract; if yes, nature of interest and details thereof 8 Whether the same would fall No. The order has been awarded by a State Government- within related party owned power distribution utility. It is neither a related party transactions; if yes, whether nor a related party transaction. at arm’s leng Regd. Office & Factory: Vadadala, Phase – II Savli, Vadodara, Gujarat, India-391520 CIN: L31300GJ1992PLC018198 Email: cs@dicabs.com, Website: www.dicabs.com Tel No.- 02667-251354/251516 Fax No.-02267-251202 DIAMOND POWER INFRASTRUCTURE LIMITED Regd. Office & Factory: Vadadala, Phase – II Savli, Vadodara, Gujarat, India-391520 CIN: L31300GJ1992PLC018198 Email: cs@dicabs.com, Website: www.dicabs.com Tel No.- 02667-251354/251516 Fax No.-02267-251202