Millicom International Cellular S A : Reconvened Shareholder invitation letter EGM 2022 - Nasdaq US

MILLICOM INTERNATIONAL CELLULAR S.A. (Tigo)

c/c Broadridge

51 Mercedes Way, Edgewood, NY 11717

Shareholders of Millicom shares listed in Nasdaq US

Dear Millicom Shareholder,

The reconvened extraordinary general meeting (EGM) of the shareholders of Millicom International Cellular S.A. (the "Company") will be held on February 28, 2022 at 4.00 pm Central European Time (CET), pursuant to the convening notice available at the Millicom website: https://www.millicom.com/investors/agm-egm-notices/The EGM was initially convened

to be held on Monday, January 24, 2022, at 4:00pm CET (the "First EGM"). As the quorum required Luxembourg law, and article 21 of the Company's articles of association was not met at the First EGM, the EGM was reconvened. The Company

continues to monitor the developments regarding COVID-19 and shareholders may exercise their rights at the EGM solely by voting by proxy. To vote at the EGM, please follow these instructions:

Eligible shareholders

Voting is reserved to Millicom Shareholders duly registered with Broadridge and/or held by DTCC, on February 14, 2022 (the "Voting Record Date") at 24.00 CET and who vote in accordance with these procedures.

Beneficial owners of shares that are registered in the name of a nominee or broker (including nominees or brokers that hold shares through DTCC) have the right to instruct their nominee or broker on how to vote with a voter instruction form ("VIF"), or as may otherwise be established by the nominee or broker. Beneficial holders who wish to vote directly must request the nominee or broker that appears as the registered shareholder on the Voting Record Date to issue a legal proxy which allows the beneficial owner to vote his or her shares directly. Beneficial owners who do not vote via their brokers/nominees or do not have a legal proxy are not eligible to vote.

Ways to vote and deadline

By proxy: registered shareholders may submit the power of attorney form ("Millicom Shareholder Proxy Form (reconvened EGM)") containing their voting instructions, such that it is received no later than on February 23, 2022.

Proxies submitted to the First EGM (covering as well any adjourned or reconvened meeting with the same agenda such as the EGM) will be automatically counted at the EGM, as long as the Millicom Shareholder who submitted such proxy is still eligible to vote on the EGM and has not duly submitted another proxy for the EGM. If the number of shares held by the Millicom Shareholder decreased, votes will only be counted for the amount held on the Voting Record Date of the reconvened EGM. If a shareholder submitted a proxy to vote on the First EGM and they wish to change their vote, then they may vote again. The latest voting instruction prevails.

Channels to submit the Millicom Shareholder Proxy Form (reconvened EGM)

1. Online: The Company has sent by post the invitation letter and the Millicom Shareholder Proxy Form needed to vote at the First EGM. The Millicom Shareholder Proxy Form included a control number. Votes can be cast using the control number at https://east.proxyvote.com/pv/web
   If you consider that you are eligible to vote but you have not received the control number by post and you would like to submit your vote online, please contact Millicom at [e-mail]
2. By post: The Millicom Shareholder Proxy Form (reconvened EGM) can be submitted by post. The original completed, dated and signed Millicom Shareholder Proxy Form (reconvened EGM) should be mailed to the address provided in the form. Shareholders that choose to send the Millicom Shareholder Proxy Form by post should also send a scanned copy to: [e-mail]

All forms and all supporting documents can be downloaded from Millicom's website: https://www.millicom.com/our-company/governance/shareholder-meetings/

ELECTRONIC DELIVERY OF FUTURE PROXY MATERIALS. If you would like to reduce the costs and waste incurred in posting proxy materials, you can consent and sign up for electronic delivery. Please follow the instructions above to vote online and, when prompted, indicate that you agree to receive or access proxy materials electronically in the future.

Millicom values the engagement and participation of the shareholders in the upcoming EGM and appreciate your effort to vote. The results and resolutions adopted by the EGM will be announced as a press release after the meeting.

Best regards,

Millicom