Company: KYIV
Filing Date: 2025-07-22
Form Type: 424B3
Source: 0001213900-25-066705
Chunk: 731

Company: Kyivstar Group Ltd.
Filing Date: 2025-07-22
Form: 424B3
Chunk 731
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 Investment Banking |

[ Signature Page to SPAC Support Agreement ]

Annex B-6

| COMPANY:            |     |                    |
| KYIVSTAR GROUP LTD. |     |                    |
| By:                 |     | /s/ Kaan Terzioglu |
| Name:               |     | Kaan Terzioglu     |
| Title:              |     | Director           |

[ Signature Page to SPAC Support Agreement ]

Annex B-7 Annex A Voting Shares [***] Annex B-8 Annex B Notices [***] [ Annex B to Sponsor Agreement ] Annex B-9 Annex C EXECUTION VERSION SPONSOR AGREEMENT This SPONSOR AGREEMENT (this “ Agreement ”) is made and entered into as of March 17, 2025, by and among (1) COHEN CIRCLE ACQUISITION CORP. I, a Cayman Islands exempted company (company number 382528) (the “ SPAC ”); (2) KYIVSTAR GROUP LTD., an exempted company with limited liability, incorporated and existing under the laws of Bermuda with registration number 202504557, with its registered office at Victoria Place, 31 Victoria Street, Hamilton, HM10, Bermuda, and its principal business address at Index Tower (East Tower), Unit 1703, DIFC (Dubai International Financial Center), United Arab Emirates (“ New PubCo ”); (3) COHEN CIRCLE SPONSOR I, LLC, a Delaware limited liability company (“ CCS I ”), (4) COHEN CIRCLE ADVISORS I, LLC, a Delaware limited liability company (“ CCA I ,” and together with CSS I, the “ Sponsors ”), (5) CANTOR FITZGERALD & CO., a New York general partnership (“ Cantor ”), and (6) VEON AMSTERDAM B.V., a private company with limited liability ( besloten vennootschap met beperkte aansprakelijkheid ) incorporated under Dutch law and registered with the Dutch Chamber of Commerce ( Kamer van Koophandel ) under number 34378904 (the “ Seller ”). Capitalized terms used herein without definition have the meanings set forth in the Business Combination Agreement (as defined below). RECITALS WHEREAS , as of the date hereof (i) in aggregate, the Sponsors are the holders of record and the “beneficial owners” (within the meaning of Rule 13d-3 under