Power of Attorney for Perry Duncan

This filing is an exhibit, specifically a Power of Attorney, for Perry Duncan, who is a director at Kyivstar Group Ltd. The document, dated April 15, 2026, appoints Zeze Ikhinmwin, Olivia Hegarty, and Boris Dolgushin as attorneys-in-fact. These attorneys are authorized to execute and file specific SEC forms, including Forms 3, 4, 5, and 144, on behalf of Mr. Duncan. This authorization is in accordance with Section 16(a) of the Securities Exchange Act of 1934 and Rule 144 of the Securities Act of 1933. The power of attorney remains effective until revoked or superseded by a new document. The filing also includes a signature from Duncan Perry, acting as Attorney-in-Fact, with a signature date of May 29, 2026.