MFS Investment Management® (MFS®) announced today that David P. Cole has been named a portfolio manager for MFS® InterMarket Income Trust I ("the Fund") (NYSE: CMK), effective December 30, 2011.

William Adams and James Calmas, current managers of the Fund, will continue to manage the Fund with Cole going forward. Cole will continue with his current portfolio management responsibilities as well, managing several high-yield portfolios at MFS.

There is no change to the Fund's investment strategy as a result of Cole's appointment.

About MFS Investment Management

MFS is a premier global money management firm with investment offices in Boston, London, Mexico City, Singapore, Sydney, and Tokyo. The firm's history dates back to March 21, 1924, and the establishment of the first U.S. "open-end" mutual fund. MFS manages $253.5 billion in assets on behalf of individual and institutional investors worldwide, as of November 30, 2011. Please visit mfs.com for more information.

The Trust is a closed-end investment product. Shares of the Trust are only available for purchase/sale, at the current market price, on the NYSE. Shares may trade at a discount to NAV.

MFS Investment Management

500 Boylston St., Boston, MA 02116

24088.1

MFS Investment Management
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