<PAGE>
EXHIBIT NO. 99.13(b)
EXHIBIT A
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<TABLE>
<CAPTION>
FUNDS AND SHARE CLASSES COVERED BY RULE 12B-1 PLAN
AS OF: OCTOBER 11, 2000
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CLASSES OF SHARES
COVERED BY RULE 12B-1 DATE RULE 12B-1 PLAN
FUND PLAN ADOPTED
------------------------------------------------------------------------------------------------
<S> <C> <C>
MFS Managed Sectors Fund A,B, C January 1, 1997,
April 12, 2000 (C shares)
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MFS Cash Reserve Fund A,B,C January 1, 1997
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MFS Global Asset Allocation Fund A,B,C January 1, 1997
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MFS Strategic Growth Fund A,B,C,J January 1, 1997;
December 8, 1999 (J shares)
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MFS Research Growth and Income Fund A,B,C January 1, 1997
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MFS Core Growth Fund A,B,C January 1, 1997
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MFS Equity Income Fund A,B,C January 1, 1997
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MFS New Discovery Fund A,B,C January 1, 1997
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MFS Research International Fund A,B,C January 1, 1997
------------------------------------------------------------------------------------------------
MFS Technology Fund A,B,C January 1, 1997
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MFS Global Telecommunications Fund A, B, C April 12, 2000
------------------------------------------------------------------------------------------------
MFS Japan Equity Fund A, B, C April 12, 2000
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MFS Emerging Growth Fund A,B,C, J January 1, 1997;
May 27, 1998 (J shares)
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MFS Large Cap Growth Fund A,B January 1, 1997
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MFS Intermediate Income Fund A,B January 1, 1997
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MFS Charter Income Fund B,C,J* May 27, 1998
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MFS Global Total Return Fund A,B,C January 1, 1997
------------------------------------------------------------------------------------------------
MFS Utilities Fund A,B,C January 1, 1997
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MFS Global Equity Fund A,B,C,J January 1, 1997;
April 14, 1999 (J shares)
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MFS Strategic Income Fund A,B,C January 1, 1997
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MFS Global Growth Fund A,B,C January 1, 1997
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MFS Alabama Municipal Bond Fund A,B January 1, 1997
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MFS Arkansas Municipal Bond Fund A,B January 1, 1997
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MFS California Municipal Bond Fund A,B,C January 1, 1997
------------------------------------------------------------------------------------------------
MFS Florida Municipal Bond Fund A,B January 1, 1997
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MFS Georgia Municipal Bond Fund A,B January 1, 1997
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MFS Maryland Municipal Bond Fund A,B January 1, 1997
------------------------------------------------------------------------------------------------
MFS Massachusetts Municipal Bond Fund A,B January 1, 1997
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MFS Mississippi Municipal Bond Fund A,B January 1, 1997
------------------------------------------------------------------------------------------------
MFS New York Municipal Bond Fund A,B,C January 1, 1997; October
11, 2000 (C shares)
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MFS North Carolina Municipal Bond Fund A,B,C January 1, 1997
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MFS Pennsylvania Municipal Bond Fund A,B January 1, 1997
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MFS South Carolina Municipal Bond Fund A,B January 1, 1997
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MFS Tennessee Municipal Bond Fund A,B January 1, 1997
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MFS Virginia Municipal Bond Fund A,B,C January 1, 1997
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MFS West Virginia Municipal Bond Fund A,B January 1, 1997
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MFS Municipal Income Fund A,B,C January 1, 1997
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MFS Massachusetts High Income Tax Free Fund A, B June 11, 1999
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MFS New York High Income Tax Free Fund A, B June 11, 1999
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MFS Government Limited Maturity Fund A,B,C January 1, 1997
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------------------
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* The Class J shares of CIF have the same characteristics as Class A shares of the other MFS Funds
identified above.
</TABLE>
<PAGE>
EXHIBIT B
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AS OF: OCTOBER 11, 2000
MFS Managed Sectors Fund
MFS Cash Reserve Fund
MFS Research Growth & Income Fund
MFS Emerging Growth Fund
MFS Large Cap Growth Fund
MFS Intermediate Income Fund
MFS Global Total Return Fund
MFS Utilities Fund
MFS Global Equity Fund
MFS Strategic Income Fund
MFS Global Growth Fund
MFS Alabama Municipal Bond Fund
MFS Arkansas Municipal Bond Fund
MFS California Municipal Bond Fund
MFS Florida Municipal Bond Fund
MFS Georgia Municipal Bond Fund
MFS Maryland Municipal Bond Fund
MFS Massachusetts Municipal Bond Fund
MFS Mississippi Municipal Bond Fund
MFS New York Municipal Bond Fund
MFS North Carolina Municipal Bond Fund
MFS Pennsylvania Municipal Bond Fund
MFS South Carolina Municipal Bond Fund
MFS Tennessee Municipal Bond Fund
MFS Virginia Municipal Bond Fund
MFS West Virginia Municipal Bond Fund
MFS Municipal Income Fund
MFS Government Limited Maturity Fund
MFS Strategic Growth Fund
MFS New Discovery Fund
MFS Equity Income Fund
MFS Research International Fund
MFS Charter Income Fund
MFS Massachusetts High Income Tax Free Fund
MFS New York High Income Tax Free Fund
MFS Core Growth Fund
MFS Technology Fund
MFS Global Telecommunications Fund
MFS Japan Equity Fund
<PAGE>
EXHIBIT C
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AS OF: OCTOBER 11, 2000
MFS Global Asset Allocation Fund
