Net Asset Value(s)

BLACKROCK INCOME AND GROWTH INVESTMENT TRUST PLC.

The unaudited net asset values for BlackRock Income and Growth Investment Trust
plc at close of business 1 June 2012 were:

129.64p Capital only (undiluted)
129.07p Capital only (Diluted for treasury shares)
132.11p Including current year income (undiluted)
131.19p Including current year income (Diluted for treasury shares)

Notes:

1. Investments have been valued on a bid price basis.

2. Revenue items included in net asset value, with dividends payable deducted