<DOCUMENT>
<TYPE>EX-99
<SEQUENCE>2
<FILENAME>poadougherty.txt
<DESCRIPTION>POWER OF ATTORNEY
<TEXT>
                               POWER OF ATTORNEY



     The undersigned on his or her own behalf and on behalf of his or her
     estate, heirs and assigns hereby constitutes and appoints Susan S. Newton,
     Christopher R. Bohane, Timothy M. Fagan, Susan A. Pereira and Brian E.
     Langenfeld and each of them singly as true and lawful attorneys with full
     power to them and each of them, to execute, on behalf of the undersigned,
     in the capacity listed below, any and all statements or reports under
     Section 16 of the Securities Exchange Act of 1934, as amended, with respect
     to the beneficial ownership of reportable securities issued by MFS Charter
     Income Trust, MFS Government Markets Income Trust, MFS Intermediate Income
     Trust, MFS Multimarket Income Trust, MFS Municipal Income Trust, MFS
     Special Value Income Trust, MFS California Insured Municipal Fund, MFS High
     Income Municipal Trust, MFS InterMarket Income Trust I, MFS Intermediate
     High Income Fund, MFS Investment Grade Municipal Trust and MFS High Yield
     Municipal Trust including, without limitation, all initial statements of
     beneficial ownership on Form 3, all statements of changes of beneficial
     ownership on Form 4 and all annual statements of beneficial ownership on
     Form 5, and any and all other documents that may be required, from time to
     time, to be filed with the Securities and Exchange Commission, to execute
     any and all amendments or supplements to any such statements or forms, and
     to file the same, with all exhibits thereto, and other documents in
     connection therewith, with the Securities and Exchange Commission, granting
     to said attorney, full power and authority to do so and perform each and
     every act and thing requisite and necessary to be done in and about the
     premises, as fully to all intents and purposes as the undersigned (or his
     or her estate, heirs and assigns) might or could do in person, hereby
     ratifying and confirming all that said attorneys or any of them may
     lawfully do or cause to be done by virtue hereof.

     IN WITNESS WHEREOF, the undersigned has set his or her hand on this 28th
     day of November, 2007.



     KEVIN DOUGHERTY
     Kevin Dougherty


</TEXT>
</DOCUMENT>
