Pioneer Closed End Funds required Notice to Shareholders Sources of Distribution Under Section 19(a)

BOSTON--(BUSINESS WIRE)-- The following closed-end funds reported sources of distribution for April and this fiscal year to date.

Distribution Period: April 2023

Ticker	Taxable Funds	Distribution Amount Per Share
HNW	Pioneer Diversified High Income Fund, Inc.	$0.0900
Ticker	Tax-Exempt Funds	Distribution Amount Per Share
MHI	Pioneer Municipal High Income Fund, Inc.	$0.0375
MIO	Pioneer Municipal High Income Opportunities Fund, Inc.	$0.0475

The following tables set forth estimates of the character of the current distribution and the cumulative distributions paid this fiscal year to date from the following sources: Net Investment Income; Net Realized Short-Term Capital Gains; Net Realized Long-Term Capital Gains or Return of Capital. All amounts are expressed per common share.

Pioneer Diversified High Income Fund, Inc. (NYSEAMER: HNW)
		Percentage	Total	Percentage Make up
		Make up of	Cumulative	of Total Cumulative
	Current	Current	Distributions	Distributions
	Distribution	Distribution	Fiscal Year to Date	Fiscal Year to Date
Net Investment Income	$0.0811	90.1%	$1.0798	90.0%
Net Realized Short-Term Capital Gains	$0.0000	0.0%	$0.0000	0.0%
Net Realized Long-Term Capital Gains	$0.0000	0.0%	$0.0000	0.0%
Return of Capital	$0.0089	9.9%	$0.1202	10.0%
Total per Common Share	$0.0900	100.0%	$1.2000	100.0%
Pioneer Municipal High Income Fund, Inc. (NYSE: MHI)
		Percentage	Total	Percentage Make up
		Make up of	Cumulative	of Total Cumulative
	Current	Current	Distributions	Distributions
	Distribution	Distribution	Fiscal Year to Date	Fiscal Year to Date
Net Investment Income	$0.0301	80.3%	$0.4208	80.8%
Net Realized Short-Term Capital Gains	$0.0000	0.0%	$0.0000	0.0%
Net Realized Long-Term Capital Gains	$0.0000	0.0%	$0.0000	0.0%
Return of Capital	$0.0074	19.7%	$0.0997	19.2%
Total per Common Share	$0.0375	100.0%	$0.5205	100.0%
Pioneer Municipal High Income Opportunities Fund, Inc. (NYSE: MIO)
		Percentage	Total	Percentage Make up
		Make up of	Cumulative	of Total Cumulative
	Current	Current	Distributions	Distributions
	Distribution	Distribution	Fiscal Year to Date	Fiscal Year to Date
Net Investment Income	$0.0340	80.0%	$0.4735	69.7%
Net Realized Short-Term Capital Gains	$0.0000	0.0%	$0.0000	0.0%
Net Realized Long-Term Capital Gains	$0.0000	0.0%	$0.0000	0.0%
Return of Capital	$0.0085	20.0%	$0.2060	30.3%
Total per Common Share	$0.0425	100.0%	$0.6795	100.0%

Notes:

Investors should not necessarily draw any conclusions about the funds' investment performance from the amount of these distributions.

Each fund estimates that a portion of its distribution does not represent income or realized capital gains. Therefore, such portion of its distribution may be a return of capital. A return of capital may occur when some or all of the money invested in the fund is returned to the investor. A return of capital distribution does not necessarily reflect the fund's investment performance and should not be considered "yield" or "income."

The amounts and sources of distributions reported under the notice are only estimates and are not being provided for tax reporting purposes. The actual amounts and sources for tax reporting purposes will depend upon each fund's investment experience during the remainder of its respective fiscal year and may be subject to change based on tax regulations. Each fund will provide investors with a Form(s) 1099 for the calendar year that explains how to report these distributions for federal income tax purposes.

The funds are closed-end investment companies. Two of these funds trade on the New York Stock Exchange (NYSE) under the following symbols: MHI and MIO; HNW trades on the NYSEAMER.

Keep in mind, distribution rates are not guaranteed. A fund’s distribution rate may be affected by numerous factors, including changes in actual or projected investment income, the level of undistributed net investment income, if any, and other factors. Closed-end funds, unlike open-end funds, are not continuously offered. Once issued, common shares of closed-end funds are bought and sold in the open market through a stock exchange and frequently trade at prices lower than their net asset value. Net Asset Value (NAV) is total assets less total liabilities divided by the number of common shares outstanding. For performance data on Amundi US’ closed-end funds, please call 800-225-6292 or visit our closed-end pricing page.

About Amundi US

Amundi US is the US business of Amundi, Europe’s largest asset manager by assets under management and ranked among the ten largest globally¹. Boston is one of Amundi’s six main global investment hubs² and offers a broad range of fixed-income, equity, and multi-asset investment solutions in close partnership with wealth management firms, distribution platforms, and institutional investors across the Americas, Europe, and Asia-Pacific.

With our financial and extra-financial research capabilities and long-standing commitment to responsible investment, Amundi is a key player in the asset management landscape. Amundi clients benefit from the expertise and advice of 5,400³ team members and market professionals in 35 countries³. A subsidiary of the Crédit Agricole group and listed on the Paris stock exchange, Amundi currently manages approximately $1.904 trillion of assets³.

Amundi, a Trusted Partner, working every day in the interest of our clients and society

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¹ Source: IPE “Top 500 Asset Managers” published in June 2022, based on assets under management as of 12/31/2021
² Boston, Dublin, London, Milan, Paris, and Tokyo
³ Amundi data as of 12/31/22

Amundi Distributor US, Inc., Member SIPC
60 State Street, Boston, MA 02109
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Source: Amundi US