Net Asset Value(s)

RNS Number : 0173X

British Portfolio Trust PLC

18 June 2008

British Portfolio Trust PLC

As recommended by the AIC, with effect from 1 June 2008, net asset values are calculated on both a capital and a cum-income basis.

British Portfolio Trust PLC announces that at close of business on 17 June 2008:

the capital net asset value per ordinary share was 171.96p.
based on the number of shares held in treasury, the capital net asset value per ordinary share was 171.43p.
the cum-income net asset value per ordinary share was 175.90p.
based on the number of shares held in treasury, the cum-income net asset value per ordinary share was 175.03p.