MFS Research International B (MFS Series Trust I MFS Research) fond

The fund normally invests its assets primarily in foreign equity securities, including emerging market equity securities. Equity securities include common stocks depositary receipts, and other securities that represent an ownership interest (or right to acquire an ownership interest) in a company or other issuer. MFS normally invests the fund's assets across different industries, sectors, countries, and regions, but MFS may invest a significant percentage of the fund's assets in issuers in a single industry, sector, country, or region.