Net Asset Value(s)

RNS Number : 7820D

British Portfolio Trust PLC

18 September 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 September 2008:

the capital net asset value per ordinary share was 138.79p.
including shares held in treasury, the capital net asset value per ordinary share was 139.30p.
the cum-income net asset value per ordinary share was 142.28p.
including shares held in treasury, the cum-income net asset value per ordinary share was 142.48p.