Certificate under SEBI (Depositories and Participants) Regulations, 2018

Date: 06/10/2026 KINGFA/SEC/2026-27 National Stock Exchange of India Limited BSE Limited Exchange Plaza, Plot No. C/1, Phiroze Jeejeebhoy Towers, G- Block, Bandra –Kurla Complex, Dalal Street, Bandra (East), Mumbai 400051 Mumbai – 400001 Symbol: KINGFA Scrip Code: 524019 Sub: Certificate under Regulation 74(5) of SEBI (Depositories & Participants) Regulations, 2018 for the quarter ended September 30, 2026. Dear Sir/Madam, Pursuant to Regulation 74(5) of SEBI (Depositories and Participants) Regulations, 2018, we are enclosing herewith certificate received from Integrated Registry Management Services Private Limited, the Registrar and Share Transfer Agent of the Company for the quarter ended September 30, 2026. Kindly take the same on record. Thanking you. Yours Truly For Kingfa Science & Technology (India) Limited Deepak Vyas Company Secretary & Compliance officer Kingfa Science & Technology (India) Limited CIN: L25209TN1983PLC010438 Regd. Office: Dhun Building, III Floor, 827, Anna Salai, Chennai - 600002. Tel: +44 – 28521736 Fax: +44 – 28520420 E-mail: cs@kingfaindia.com Website: www.kingfaindia.com October 03, 2026 KINGFA SCIENCE & TECHNOLOGY (INDIA) LIMITED FORMERLY KNOWN AS HYDRO S & S INDUSTRIES LIMITED DHUN BUILDING 827 ANNA SALAI CHENNAI 600002 Kind Attn.: Mr. Deepak Vyas, Company Secretary Dear Sir, Sub: Certificate in terms of Regulation 74(5) of the Securities and Exchange Board of India (Depositories and Participants) Regulations, 2018 for the quarter ended on September 30, 2026 In terms of the provisions of the said regulations, we hereby confirm and certify that: a) The securities comprised in the certificates received for dematerialisation, during the quarter ended on September 30, 2026 (“said certificate”), are listed on BSE Limited and National Stock Exchange of India Limited and b) The said certificates have been mutilated and cancelled after due verification and the name of the depository has been substituted in our records as the registered owner thereof within 15 days of receipt of said certificates. This is for your information and records. Thanking you, Yours faithfully, for INTEGRATED REGISTRY MANAGEMENT SERVICES PRIVATE LTD., YUVARAJ S General Manager Integrated Registry Management Services Private Limited 2nd Floor, “Kences Towers”, No. 1 Ramakrishna Street, North Usman Road, T Nagar, Chennai – 600 017 Phone: 044-28140801–03 Fax : 044-28142479 E-mail: einward@integratedindia.in website : www.integratedregistry.in Regd. Office : 2ND Floor “Kences Towers”, No. 1 Ramakrishna Street, North Usman Road, T Nagar, Chennai – 600 017 CIN: U74900TN2015PTC101466 “Appointment of Nominee is not an option but your Right. Please exercise your right to nominate”