Company: MYI
Filing Date: 2025-07-15
Form Type: 425
Source: 0001193125-25-159406
Chunk: 2

Company: BLACKROCK MUNIYIELD QUALITY FUND III, INC.
Filing Date: 2025-07-15
Form: 425
Chunk 2
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Because this Offer is limited as to the number of Shares that the Fund will purchase, not all Shares tendered for purchase by stockholders may be accepted for payment by the Fund. This may occur, for example, if one or more large investors seek to tender a significant number of Shares or if a large number of investors tender Shares.

IMPORTANT INFORMATION

Stockholders who desire to participate in the Offer should either: (a) properly complete and sign the Letter of Transmittal (in the case
of registered stockholders), provide thereon the original of any required signature guarantee(s) and mail or deliver it together with the Shares, if any (in proper form), and all other documents required by the Letter of Transmittal; or
(b) request their broker, dealer, commercial bank or trust company (each, a “Nominee”) to effect the transaction on their behalf. Stockholders whose Shares are registered in the name of a Nominee, such as a brokerage firm or other
financial intermediary, must contact that firm to instruct the firm to participate in the Offer on their behalf. Tendering stockholders may be charged a fee by their Nominee or other financial intermediary for processing the documentation required
to participate in the Offer on their behalf. Stockholders are urged to consult their own investment and tax advisers and make their own decisions whether to tender Shares and, if so, how many Shares to tender, or to refrain from tendering Shares in
the Offer.

The Fund reserves the absolute right to reject Shares determined not to be tendered in appropriate form.

Beneficial owners should be aware that their broker, dealer, commercial bank, trust company or other nominee may establish its own earlier deadline for participation in the Offer. Accordingly, beneficial owners wishing to participate in the Offer should contact their Nominee as soon as possible in order to determine the times by which such owner must take action in order to participate in the Offer.

If you want to tender your Shares but your certificates for the Shares are not immediately available or cannot be delivered to the Depositary within the required time or you cannot comply with the procedures for book-entry transfer, or your other required documents cannot be delivered to the Depositary by the Expiration Date of the Offer, you will not be able to tender your Shares.

None of the Fund, its Board of Directors (the “Board of Directors” or the “Board”) or BlackRock Advisors, LLC (the “Investment Advisor”) makes any recommendation to any stockholders as to whether to tender Shares for purchase or to refrain