BKN Stock, BlackRock Investment Quality Municipal Trust Inc. Information

To provide high current income exempt from regular Federal income tax consistent with the preservation of capital. At least 80% of the securities in the portfolio are rated at least investment grade or determined by the Adviser to be of equivalent credit quality. No more than 20% of its assets will be invested in municipal obligations subject to Federal income tax. The Fund seeks to achieve its investment objective by investing at least 80% of its assets in municipal obligations that pay interest that is exempt from U.S. federal income taxes (except that the interest may be subject to the U.S. federal alternative minimum tax). Under normal market conditions, the Fund invests at least 80% of its assets in securities rated investment grade at the time of investment. The Fund may invest up to 20% of its assets in unrated securities that are deemed by the investment adviser to be of comparable quality.