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<PAGE> PAGE 13
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<PAGE> PAGE 16
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<PAGE> PAGE 22
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<PAGE> PAGE 23
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<PAGE> PAGE 24
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<PAGE> PAGE 25
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<PAGE> PAGE 26
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<PAGE> PAGE 27
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<PAGE> PAGE 28
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<PAGE> PAGE 29
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<PAGE> PAGE 30
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<PAGE> PAGE 31
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<PAGE> PAGE 32
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<PAGE> PAGE 33
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SIGNATURE ELLEN MOYNIHAN
TITLE ASSISTANT TREASURER
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<ACCUM-APPREC-OR-DEPREC> (16633)
<NET-ASSETS> 1024703
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 44105
<OTHER-INCOME> 0
<EXPENSES-NET> 0
<NET-INVESTMENT-INCOME> 44105
<REALIZED-GAINS-CURRENT> (3151)
<APPREC-INCREASE-CURRENT> (16633)
<NET-CHANGE-FROM-OPS> 24321
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (9)
<DISTRIBUTIONS-OF-GAINS> (1)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 20
<NUMBER-OF-SHARES-REDEEMED> 0
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> 1024703
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 2998
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 22656
<AVERAGE-NET-ASSETS> 1007679
<PER-SHARE-NAV-BEGIN> 10.00
<PER-SHARE-NII> 0.41
<PER-SHARE-GAIN-APPREC> (0.19)
<PER-SHARE-DIVIDEND> (0.43)
<PER-SHARE-DISTRIBUTIONS> (0.02)
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 9.77
<EXPENSE-RATIO> 0
</TABLE>
SUB-ITEM 77-H
MFS SERIES TRUST X ON BEHALF OF: MFS Strategic Value Fund ("SVF") MFS Emerging
Markets Debt Fund ("EMF") MFS European Equity Fund ("MEQ") MFS High Yield Fund
("MHT") MFS Income Fund ("MIY")
As of January 31, 2000, the following entities beneficially owning more
than 25% of any one Series' voting securities, thereby becoming controlling
entities of such Series, are those entities listed as follows:
<TABLE>
<CAPTION>
%OF
SHARES
SERIES OWNER AND ADDRESS OWNED
<S> <C> <C>
MFS Strategic Value Fund
Class A Shares Kenneth J. Enright 44.72%
c/o Massachusetts Financial Services Company
500 Boylston Street - 25th Floor
Boston, MA 02116-3740
Class I Shares TRS MFS Defined Contribuiton Plan
C/O Mark Leary 99.98%
Massachusetts Financial Services Company
500 Boylston Street
Boston, MA 02116-3740
MFS Emerging Markets Debt Fund MFS Fund Distributors Inc. 98.65%
Class A Shares c/o Massachusetts Financial Services Co.
Attn: Thomas B. Hastings
500 Boylston Street - 15th Floor
Boston, MA 02116-3740
Class I Shares MFS Defined Contribution Plan 99.92%
c/o Mark Leary
Massachusetts Financial Services Company
500 Boylston Street
Boston, Massachusetts 02116-3740
<PAGE>
<CAPTION>
% OF
SHARES
SERIES OWNER AND ADDRESS OWNED
<S> <C> <C>
MFS European Equity Fund
Class A Shares MFS Fund Distributors Inc. 93.17%
c/o Massachusetts Financial Services Co.
Attn: Thomas B. Hastings
500 Boylston Street - 15th Floor
Boston, MA 02116-3740
Class I Shares MFS Service Center Inc 100%
Audit Account Cash
Corporate Actions 10th FL
Attn: Paulette Cato
500 Boylston Street
Boston, MA 02116-3740
MFS High Yield Fund MFS Fund Distributors Inc. 76.81%
Class A Shares c/o Massachusetts Financial Services Co.
Attn: Thomas B. Hastings
500 Boylston Street - 15th Floor
Boston, MA 02116-3740
Class I Shares MFS Service Center Inc 100%
Audit Account Cash
Corporate Actions 10th FL
Attn: Paulette Cato
500 Boylston Street
Boston, MA 02116-3740
MFS Income Fund MFS Fund Distributors Inc.
Class A Shares c/o Massachusetts Financial Services Co. 99.98%
Attn: Thomas B. Hastings
500 Boylston Street - 15th Floor
Boston, MA 02116-3740
Class I Shares MFS Service Center Inc 100%
Audit Account Cash
Corporate Actions 10th FL
Attn: Paulette Cato
500 Boylston Street
Boston, MA 02116-3740
<PAGE>
<CAPTION>
As of January 31, 2000, entities no longer beneficially owning more
than 25% of any one Series' voting securities, thereby ceasing to be controlling
entities of such Series, are as follows:
SERIES OWNER AND ADDRESS
<S> <C>
MFS Strategic Value Fund
Class A Shares MFS Fund Distributors Inc
C/o MA Financial Services Company
Attn: Thomas B. Hastings
500 Boylston Street - 15th Floor
Boston, MA 02116-3740
</TABLE>
35003
EXHIBIT 77Q1(a)
MFS SERIES TRUST X
MFS SMALL CAP VALUE FUND
Pursuant to Section 9.2(b) of the Amended and Restated Declaration of
Trust, dated January 19, 1995, as amended, (the "Declaration"), of MFS Series
Trust X (the "Trust"), the undersigned, constituting a majority of the Trustees
of the Trust, do hereby certify that MFS Small Cap Value Fund, a series of the
Trust, has been terminated.
<PAGE>
IN WITNESS WHEREOF, the undersigned have executed this certificate this
23rd day of December, 1999.
<TABLE>
<S> <C>
RICHARD B. BAILEY
Richard B. Bailey Charles W. Schmidt
63 Atlantic Avenue 63 Claypit Hill Road
Boston, MA 02110 Wayland, MA 01778
J. ATWOOD IVES ARNOLD D. SCOTT
J. Atwood Ives Arnold D. Scott
17 West Cedar Street 20 Rowes Wharf
Boston, MA 02108 Boston, MA 02110
LAWRENCE T. PERERA JEFFREY L. SHAMES
Lawrence T. Perera Jeffrey L. Shames
18 Marlborough Street 38 Lake Avenue
Boston, MA 02116 Newton, MA 02159
WILLIAM J. POORVU ELAINE R. SMITH
William J. Poorvu Elaine R. Smith
975 Memorial Drive 75 Scotch Pine Road
Cambridge, MA 02138 Weston, MA 02193
David B. Stone
282 Beacon Street
Boston, MA 02116
</TABLE>
The Amendments to the Declaration of Trust establishing the MFS European Equity
Fund, MFS Concentrated Growth Fund, MFS High Yield Fund, and MFS Income Fund are
Incorporated by reference to this Registrant's Post-Effective Amendment No. 27
(File No. 33-1657 and No. 811-4492) filed with the SEC via EDGAR on September
29, 1999.
