BlackRock Maryland Municipal Bond Trust (the Trust) is a non diversified, closed-end management investment company. The Trust’s investment objective is to provide current income exempt from regular federal income taxes and Maryland personal income taxes. The Trust seeks to achieve its investment objectives by investing primarily in municipal bonds exempt from federal income taxes (except that the interest may be subject to the federal alternative minimum tax) and Maryland personal income taxes. The Trust invests, under normal market conditions, at least 80% of its assets in municipal bonds that are investment grade quality at the time of investment. The Trust may invest directly, in such securities or synthetically through the use of derivatives. BlackRock Advisors, LLC is the investment advisor.