REG-Throgmorton Tst PLC: Net Asset Value(s)

NET ASSET VALUE

THE THROGMORTON TRUST PLC

The unaudited net asset value for The Throgmorton Trust PLC at close of
business on 18 May 2009 was:

109.45p Capital only
112.32p Including current Year Revenue

Notes:

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

2. Following the recent tender offer, the company now holds 8,200,000 shares in
treasury. The number of shares in issue (excluding treasury shares) is
82,351,197.

3. Revenue items included in net asset value, with dividends payable deducted
on the ex-dividend date.

END