MFS Investment Management® (MFS®) announced today that Matthew W. Ryan and Ward Brown have been added to the portfolio management team of MFS® InterMarket Income Trust I ("the Fund") (NYSE: CMK), effective immediately.

Ryan and Brown will manage the emerging market debt exposure of the Fund. Both will continue with their other portfolio management responsibilities at MFS as well, managing emerging market debt portfolios across MFS' retail and institutional product lines.

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

Current fixed income portfolio managers for the Fund, James J. Calmas, William J. Adams, and David P. Cole continue to manage the Fund as well.

About MFS Investment Management

MFS is a premier global money management firm with investment offices in Boston, London, Mexico City, Singapore, Sydney, Tokyo, and Toronto. The firm's history dates back to March 21, 1924, and the establishment of the first U.S. "open-end" mutual fund. MFS manages $253.2 billion in assets on behalf of individual and institutional investors worldwide, as of December 31, 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

24436.2

MFS Investment Management
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John Reilly, 617-954-5305
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