Net Asset Value(s)

British Portfolio Trust PLC
26 February 2008


British Portfolio Trust PLC

As recommended by the AIC, financial assets are now valued on a bid price basis
in accordance with revised UK accounting standards.

British Portfolio Trust PLC announces that at close of business on 25 February
2008:

1)      the capital net asset value per ordinary share was 176.20p.

2)      based on the number of shares held in treasury, the net asset value per
ordinary share was 175.83p.

Enquiries:
Peter Ingram
Tel: [phone]
26 February 2008





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