Company: CIF
Filing Date: 2025-08-22
Form Type: DEF 14A
Source: 0001741773-25-002969
Chunk: 51

Company: MFS INTERMEDIATE HIGH INCOME FUND
Filing Date: 2025-08-22
Form: DEF 14A
Chunk 51
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 TELEPHONE:1-800-337-3503

CMU_34526_051325_Pref

| xxxxxxxxxxxxxx | code |

#### EVERY
SHAREHOLDER’S VOTE IS IMPORTANT

<div align='center'>**Important Notice Regarding
the Availability of Proxy Materials for the MFS

Shareholders
Meeting to be held on October 2, 2025.

The Proxy Statement for this
meeting is available at https://www.proxy-direct.com/mfs-34526**</div>

#### PLEASE
SIGN, DATE AND RETURN YOUR

### PROXY CARD TODAY

#### Please
detach at perforation before mailing.

| TO VOTE MARK BLOCKS BELOW                      
 IN BLUE OR BLACK INK AS SHOWN IN THIS EXAMPLE: | X |

| A | Proposal | YOUR BOARD OF TRUSTEES RECOMMENDS A VOTE “FOR” 
 THE ELECTION OF ALL NOMINEES.                  |

1b. (i) Election of Trustees.

|              |                |             |     | FOR 
 ALL |     | WITHHOLD 
 ALL      |     | FOR        
 ALL EXCEPT |
| 01.  Maureen 
 R. Goldfarb  | 02.            
 Paula E. Smith | 03.  Laurie 
 J. Thomsen  |     |     |     |          |     |            |

To withhold authority to vote for any individual, mark the
box “FOR ALL EXCEPT” and write

the nominee’s
number on the line provided below.

________________________________________________________________________________________

1b. (ii) Election of Trustees.

|              |                    |     | FOR 
 ALL |     | WITHHOLD 
 ALL      |     | FOR        
 ALL EXCEPT |
| 01.  John    
 P. Kavanaugh | 02.                
 Maryanne L. Roepke |     |     |     |          |     |            |

To withhold
authority to vote for any individual, mark the box “FOR ALL EXCEPT” and write

the nominee’s number on the line provided below.

________________________________________________________________________________________

2.To transact such other business as may properly come before the Meeting and any adjournment(s) or

postponement(s) thereof.

| B | Authorized Signatures ─ This section must be                
 completed for your vote to be counted.─ Sign and Date Below |

**Note: Please sign exactly as your name(s) appear(s) on this proxy card, and date it. When shares are held jointly, each holder should sign