Company: NMZ
Filing Date: 2025-07-07
Form Type: N-CSRS
Source: 0001193125-25-156000
Chunk: 59

Company: NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND
Filing Date: 2025-07-07
Form: N-CSRS
Chunk 59
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 information provided to the Board and its committees over time. The
performance, fee and expense data and other information provided by a Fund Adviser, Broadridge or other service providers were not independently verified by the Board Members.

As part of their review, the Board Members and independent legal counsel met in executive session on April 9, 2025 to review and discuss materials provided in
connection with their annual review of the Advisory Agreements. After reviewing this information, the Board Members requested, directly or through independent legal counsel, additional information, and the Board subsequently reviewed and discussed
the responses to these follow-up questions and requests. The Board Members and independent legal counsel met again in executive session on April 17, 2025 (together with the April 9, 2025 executive
session, the “Executive Sessions”) to discuss the responses to the initial supplemental information request and, following their review of the data provided, requested management present certain additional information at the Meeting. In
addition to the Executive Sessions, the Board Members met in additional executive sessions prior to and during the Meeting. During the Meeting, the Board Members considered the responses, invited representatives of management to provide additional
information and determined that the information provided (whether oral or written) was responsive to their requests.

The Board Members were advised by
independent legal counsel during the annual review process as well as throughout the year, including meeting in executive sessions with such counsel at which no representatives of management were present. In connection with their annual review, the
Board Members also received a memorandum from independent legal counsel outlining their fiduciary duties and legal standards in reviewing the Advisory Agreements, including guidance from court cases evaluating advisory fees.

After the discussions and with the background and knowledge described above, the Board Members approved the continuation of the Advisory Agreements on behalf of
the applicable Funds for an additional one-year period. The Board did not identify any single factor as all-important or controlling, but rather each decision reflected
the comprehensive consideration of all the information (written or oral) provided to the Board and its committees throughout the year as well as the materials prepared specifically in connection with the annual review process. The contractual
arrangements may reflect the results of prior year(s) of review, negotiation and information provided in connection with the Board’s annual review of the Funds’ advisory arrangements and oversight of the Funds. Each Board Member may have
attributed different levels of importance to the various factors and information considered in connection with the annual review process and may have placed different emphasis on