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MFS(R) /SUN LIFE SERIES TRUST
GLOBAL GROWTH SERIES
Supplement to Current Prospectus
As disclosed in the Trust's Prospectus, Foreign & Colonial Management Ltd.
("FCM") and its subsidiary, Foreign & Colonial Markets Limited ("FCEM"), have
been retained by MFS to serve as sub-advisers to the series to manage the assets
of the series invested in foreign emerging market securities. Effective
September 1, 1999, MFS will assume all portfolio management responsibilities for
emerging market securities from FCM and FCEM for the series, and the
sub-investment advisory agreements pursuant to which FCM and FCEM provide their
services will terminate. Effective September 1, 1999, the description of the
manner in which foreign emerging markets securities are managed is revised as
follows:
Foreign Emerging Markets Managed by a committee of investment
research analysts. This committee includes
investment analysts employed by MFS
and by MFS' foreign branches and
affiliates. This portion of the series'
assets is allocated among countries and
industries by the analysts acting together
as a group. Individual analysts are
then responsible for selecting what they
view as the securities best suited to
meet each such series investment objective
within their assigned geographic and
industry responsibility.
The date of this Supplement is July 16, 1999
