Reaffirmation and upgrade of Credit Rating - O2 Companies

Energy Limited Regd. Office: JSW Centre, Bandra Kurla Complex, Bandra (East), Mumbai – 400 051, CIN: L74999MH1994PLC077041 Phone: 022-4286 1000 Fax: 022-4286 3000 Website: www.jsw.in SEC / JSWEL 1st September 2026 BSE Limited National Stock Exchange Phiroze Jeejeebhoy Towers Exchange Plaza Dalal Street Bandra-Kurla Complex, Bandra (E) Mumbai – 400 001 Mumbai – 400 051 Scrip Code: 533148 Symbol: JSWENERGY – EQ Sub: Reaffirmation and upgrade of Credit Rating - O2 Companies Ref: Regulation 30 of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015 Dear Madam / Sir, We wish to inform you that Care Ratings Limited (CARE), vide its release dated 31st August 2026, has reaffirmed and upgraded the ratings for the long-term bank facilities of the following step-down subsidiaries of the Company: Sr. No. Name of the Company Rating Rating Action 1 ES Sun Power Private Limited CARE A+; Stable Reaffirmed 2 ES Energy Private Limited CARE A+; Stable Reaffirmed 3 ES Solar Private Limited CARE A+; Stable Reaffirmed 4 O2 Renewable Energy II Private Limited CARE A+; Stable Reaffirmed 5 O2 Renewable Energy XII Private CARE A+; Stable Upgraded Limited 6 O2 Renewable Energy XV Private CARE A+; Stable Upgraded Limited The Press Release in this regard is available on their website www.careratings.com Yours faithfully, For JSW Energy Limited Monica Chopra Company Secretary Part of O.P. Jindal Group