Trading Window of the Company shall remain closed from 1st October 2026 till 48 hours after the declaration of Financial Results for the quarter ended 30th September 2026.

Ref. No.: 01: SEC Dated: 23.09.2026 Listing Department Listing Department National Stock Exchange of India Limited BSE Limited “Exchange Plaza”, Bandra-Kurla Complex Floor 25, Phiroze Jeejeebhoy Towers Bandra (E), Mumbai –400 051 Dalal Street Mumbai-400 001 Trading Symbol: NTPCGREEN Scrip Code: 544289 Sub.: - Intimation regarding closure of trading window Dear Sir/Madam, Pursuant to Securities and Exchange Board of India (Prohibition of Insider Trading) Regulations, 2015 and the “Code for Prevention of Insider Trading in the securities of NTPC Green Energy Limited”, it is hereby informed that the “trading window” for dealing in the securities of the Company shall remain closed from 1st October 2026 till 48 hours after the declaration of Financial Results for the quarter ended 30th September 2026, for the “Designated Persons” of the Company and their immediate relatives as covered under the Code. The date of the board meeting in which the financial results will be considered shall be intimated in due course. This is for your information and records. Thanking you, Yours faithfully, For NTPC Green Energy Limited (Deepak C S) Company Secretary & Compliance Officer M. No. F5060 नैगम काया(cid:170)लय : एनटीपीसी (cid:250)ीन एनज(cid:234) िलिमटेड, ने(cid:253)ा कॉ(cid:204)(cid:200)ल(cid:179)े स, ई-3, उ(cid:299)ोग िवहार फेज-2, (cid:250)ेटर नौएडा, उ(cid:176)र (cid:255)देश – 201306 Corp. Office : NTPC Green Energy Limited, NETRA Complex, E-3, Udyog Vihar Ph.-II, Greater Noida, UP-201306 Reg. Office : NTPC Bhawan, Core-7, SCOPE Complex, 7, Institutional Area, Lodhi Road, New Delhi – 110003 सीआईएन : L40100DL2022GOI396282 | टेलीफोन: 011-24360959 | ईमेल: ngel@ntpc.co.in | www.ngel.in CIN : L40100DL2022GOI396282 | Tel.: 011-24360959 | Email: ngel@ntpc.co.in | www.ngel.in