Company: NMZ
Filing Date: 2025-11-18
Form Type: N-14 8C/A
Source: 0001999371-25-018025
Chunk: 9

Company: NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND
Filing Date: 2025-11-18
Form: N-14 8C/A
Chunk 9
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 vote my shares? |

| A. | You                                                                                
 may vote by attending the Meetings, or by mail, by telephone or over the Internet: |

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| ● | To                                                                                     
 vote in person, if you own shares directly with a Fund, you may attend such Fund’s     
 Meeting and vote in person, or you may execute a proxy designating a representative to 
 attend the Meeting and vote on your behalf. If you own shares in “street name”         
 through a broker or nominee, you may attend the Meeting and vote in person only if you 
 obtain a proxy from your broker or nominee in advance of the Annual Meeting and bring  
 it with you to hand in along with the ballot that will be provided. The date, time and 
 location of each Meeting is set forth on the enclosed notice of meeting for the Funds. |

| ● | To                                                                                 
 vote by mail, please mark, sign, date and mail the enclosed proxy card. No postage 
 is required if mailed in the United States.                                        |

| ● | To                                                                                 
 vote by telephone, please call the toll-free number located on your proxy card and 
 follow the recorded instructions, using your proxy card as a guide.                |

| ● | To                                                                                
 vote over the Internet prior to the Meetings, go to the Internet address provided 
 on your proxy card and follow the instructions, using your proxy card as a guide. |

| Q. | Will               
 anyone contact me? |

| A. | You                                                                                     
 may receive a call from Computershare Fund Services, the proxy solicitor hired by your  
 Fund, to verify that you received your proxy materials, to answer any questions you may 
 have about the Mergers or the other proposal and to encourage you to vote your proxy.   |

We recognize the inconvenience of the proxy solicitation process and would not impose on you if we did not believe that the matter being proposed was important. Once your vote has been registered with the proxy solicitor, your name will be removed from the solicitor’s follow-up contact list.

Your vote is very important. We encourage you as a shareholder to participate in your Fund’s governance by returning your vote as soon as possible. If enough shareholders fail to cast their votes, a Fund may not be able to hold its Meeting or the vote on the Merger or other proposal and will be required to incur additional solicitation costs in order to obtain sufficient shareholder participation.

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[●],