Company: KYIV
Filing Date: 2025-06-05
Form Type: F-4
Source: 0001213900-25-051575
Chunk: 735

Company: Kyivstar Group Ltd.
Filing Date: 2025-06-05
Form: F-4
Chunk 735
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 |     |                                   |
| By:                     |     | /s/ Sage Kelly                    |
| Name:                   |     | Sage Kelly                        |
| Title:                  |     | Global Head of Investment Banking |

[ Signature Page to Sponsor Agreement ]

Annex C-12

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

[ Signature Page to Sponsor Agreement ]

Annex C-13

| VEON AMSTERDAM B.V. |     |                      |
| By:                 |     | /s/ Kaan Terzioglu   |
| Name:               |     | Kaan Terzioglu       |
| Title:              |     | Director             |
| By:                 |     | /s/ Maciej Wojtaszek |
| Name:               |     | Maciej Wojtaszek     |
| Title:              |     | Director             |

[ Signature Page to Sponsor Agreement ]

Annex C-14 ANNEX A Sponsors’ New PubCo Common Shares immediately after the Closing [***] Annex C-15 ANNEX B Notices [***] Annex C-16 Annex D EXECUTION VERSION SELLER LOCK-UP AGREEMENT This SELLER LOCK-UP AGREEMENT (this “ Agreement ”) is made and entered into as of March 17, 2025, by and among (1) 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 ”); (2) COHEN CIRCLE SPONSOR I, LLC, a Delaware limited liability company (“ CCS I ”), (3) COHEN CIRCLE ADVISORS I, LLC, a Delaware limited liability company (“ CCA I ,” and together with CSS I, the “ Sponsors ”), and (4) 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