Company: MYI
Filing Date: 2025-09-08
Form Type: DEF 14A
Source: 0001193125-25-198172
Chunk: 37

Company: BLACKROCK MUNIYIELD QUALITY FUND III, INC.
Filing Date: 2025-09-08
Form: DEF 14A
Chunk 37
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 www.blackrock.com as well as certain other material information as necessary
from time to time. Investors and others are advised to check the website for updated performance information and the release of other material information about the Funds. References to BlackRock’s website are intended to allow investors
public access to information regarding the Funds and do not, and are not intended to, incorporate BlackRock’s website in this Joint Proxy Statement/Prospectus.

Please note that only one copy of shareholder documents, including annual or semi-annual reports and proxy materials, may be delivered to two
or more shareholders of the Funds who share an address, unless the Funds have received instructions to the contrary. This practice is commonly called “householding” and it is intended to reduce expenses and eliminate duplicate mailings
of shareholder documents. Mailings of your shareholder documents may be householded indefinitely unless you instruct us otherwise. To request a separate copy of any shareholder document or for instructions as to how to request a separate copy of
these documents or as to how to request a single copy if multiple copies of these documents are received, shareholders should contact the respective Fund at the address and phone number set forth above.

The common shares of BlackRock MuniVest Fund II, Inc. are listed on the NYSE under the ticker symbol “MVT,” the common shares of
BlackRock MuniYield Michigan Quality Fund, inc. are listed on the NYSE under the ticker symbol “MIY,” and the common shares of BlackRock MuniVest Fund, Inc. are listed on the NYSE under the ticker

v

symbol “MVF.” The common shares of BlackRock MuniYield Quality Fund III, Inc. are listed on the NYSE under the ticker symbol “MYI” and will continue to be so listed after the completion of the Reorganizations. The preferred shares of each Fund are not listed on any exchange and have not been registered under the Securities Act of 1933 (the “Securities Act”), or any state securities laws, and unless so registered under the Securities Act, may not be offered, sold, assigned, transferred, pledged, encumbered or otherwise disposed of except pursuant to an exemption from, or in a transaction not subject to, the registration requirements of the Securities Act and applicable state securities laws. Accordingly, the VRDP Shares to be issued in the Reorganization are expected to be issued only to holders of VRDP Shares of the Target Fund that are “qualified institutional buyers” (as defined in Rule 144A