Company: MYI
Filing Date: 2025-08-08
Form Type: PRE 14A
Source: 0001193125-25-176952
Chunk: 331

Company: BLACKROCK MUNIYIELD QUALITY FUND III, INC.
Filing Date: 2025-08-08
Form: PRE 14A
Chunk 331
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 be binding upon any of their respective directors, trustees, shareholders, nominees, officers, agents, or employees personally, but shall bind only the property of the respective Fund. The execution and delivery of this Agreement has been authorized by the Boards of the Acquiring Fund and the Target Fund and signed by an authorized officer of each of the Acquiring Fund and the Target Fund, acting as such, and neither such authorization by such Board nor such execution and delivery by such officer shall be deemed to have been made by any of them individually or to impose any liability on any of them personally, but shall bind only the trust property of each Fund. (g) This Agreement may be executed in any number of counterparts, each of which, when executed and delivered, shall be deemed to be an original but all such counterparts together shall constitute but one instrument. [Remainder of Page Intentionally Left Blank] IN WITNESS WHEREOF, the parties have hereunto caused this Agreement to be executed and delivered by their duly authorized officers as of the day and year first written above.

| BLACKROCK MUNIYIELD QUALITY FUND III, INC.                                                                |     |        |     |                                       |
| By:                                                                                                       |     |        |     |                                       |
|                                                                                                           |     | Name:  |     | John M. Perlowski                     |
|                                                                                                           |     | Title: |     | President and Chief Executive Officer |
| BLACKROCK MUNIVEST FUND, INC. BLACKROCK MUNIVEST FUND II, INC. BLACKROCK MUNIYIELD MICHIGAN QUALITY FUND, 
 INC.                                                                                                      |     |        |     |                                       |

A-20

| By: |     |        |     |                |
|     |     | Name:  |     | Stephen Minar  |
|     |     | Title: |     | Vice President |

A-21

APPENDIX B FUNDAMENTAL AND NON-FUNDAMENTALINVESTMENT RESTRICTIONS Acquiring Fund (MYI) The following are fundamental investment restrictions of the Acquiring Fund and may not be changed without the approval of the holders of a majority of the Acquiring Fund’s outstanding Common Shares and outstanding Preferred Shares, voting together as a single class, and a majority of the outstanding Preferred Shares, voting as a separate class (which for this purpose and under the 1940 Act means the lesser of (i) 67% of the shares of each