Press Release

DIAMOND POWER INFRASTRUCTURE LIMITED October 22, 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 NSE: DIACABS Sub: To add a new Catenary Continuous Vulcanisation (CCV) line for cables up to 132 kV - Disclosure pursuant to Regulation 30 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 Dear Sir/Madam, Pursuant to Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 read with Para B (Items 1, 2 and 3) of Part A of Schedule III thereto, we wish to inform the Exchange that the Company intends to add a new Catenary Continuous Vulcanisation (CCV) line for cables up to 132 kV, the details whereof are as under; Particulars Details Existing capacity 6 CCV lines; EHV cable capacity ~2,000 km p.a. Existing capacity utilisation 60% Proposed capacity addition One CCV line, up to 132 kV p.a. Period within which capacity is to be The proposed capacity is expected to be added added by December 31, 2027. Delivery of plant and machinery is expected by August 2027, and commissioning by December 31, 2027 Investment required Rs 25 crore including floor extension Mode of financing Internal Accruals 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 DIAMOND POWER INFRASTRUCTURE LIMITED Particulars Details Rationale To meet the growing demand for HV/EHV underground cables and to expand the Company's EHV capacity The press release titled ‘Diamond Power to add another CCV line for cables up to 132 kV’ issued today by the Company is enclosed herewith, for the information to our stakeholder. You are requested to take the above on record. Thanking you, Yours sincerely, For Diamond Power Infrastructure Limited Jayesh Patel Company Secretary ICSI Mem.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 DIAMOND POWER INFRASTRUCTURE LIMITED Press release Diamond Power to add another CCV line for cables up to 132 kV Vadodara, 22 October 2026: Diamond Power Infrastructure Limited (DICABS) is pleased to announce that it will add another Catenary Continuous Vulcanizations (CCV) line at its Vadodara plant. The line can manufacture XLPE-insulated power cables up to 132 kV. The machinery is scheduled for delivery by August 2027, and the line is targeted for commissioning by 31 December 2027. With this addition, DICABS will operate Six CCV lines LO & Five Silane Lines at its 130-acre single-location plant. The expansion will add meaningful high-voltage and extra-high- voltage capacity. It comes as demand grows for underground cabling from state utilities, transmission developers, renewable energy parks and data centers. The line will be supported by DICABS's existing in-house facilities: • Its own aluminium rod mills • In-house compounding • NABL-accredited high-voltage test laboratories rated up to 765 kV Commenting on the development, Mr Kavish Shah, Vice President, Diamond Power Infrastructure Limited, said: "Our EHV order book is growing steadily, and customers are asking for larger volumes on shorter timelines. This new CCV line strengthens our position as one of India's leading MV and EHV cable manufacturers. It will help us serve that demand from a single, integrated location." About DICABS: Diamond Power Infrastructure Limited, under the DICABS brand, has 55 years of experience in the cable industry. It manufactures power cables from 1.1 kV to 400 kV, along with HTLS, AL-59, AAAC and other high-performance conductors, at its integrated plant in Vadodara, Gujarat. 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