Robert John Yerbury

Invesco Asset Management Ltd. (IAML) is the wholly-owned Great Britain-based investment management subsidiary of Invesco UK Ltd., itself a subsidiary of Invesco Ltd. (NYSE: IVZ) in the US. The firm was founded in 1969 as Cavalier Securities Ltd. and became Invesco Asset Management Ltd. in 1993. They are headquartered in Henley-on-Thames, Oxfordshire. IAML provides investment management services on both a discretionary and non-discretionary basis to pension and profit-sharing plans, educational institutions, investment companies, insurance companies, individuals and holding companies. The firm also acts as investment advisor for a number of mutual funds on a sub-advised basis.

INVESCO UK Ltd. operates as a business credit institution. The company is headquartered in London, UK.

Perpetual Income & Growth Investment Trust Plc operates as a closed-end investment fund or investment trust. Its investment objective is to provide shareholders with capital growth and real growth in dividends over the medium to longer term from a portfolio of securities listed mainly in the UK equity market. The company was founded on February 2, 1996 and is headquartered in Henley-on-Thames, United Kingdom.

Van Kampen Trust for Insured Municipals is a high level of current income exempt from federal income tax, consistent with preservation of capital. The trust portfolio is a diversified portfolio where, under normal market conditions, primarily all of the trust's assets will be invested in municipal securities that are covered by insurance with respect to timely payment of principal and interest. Van Kampen Trust for Insured Municipals was founded on January 24, 922, and is headquartered in New York, NY.