Transaction in Own Shares

JP Morgan Mid Cap Invest Trust PLC 
31 August 2007



                       LONDON STOCK EXCHANGE ANNOUNCEMENT

                     JPMORGAN MID CAP INVESTMENT TRUST PLC

                 REPURCHASE OF ORDINARY SHARES FOR CANCELLATION

JPMorgan Mid Cap Investment Trust plc has today purchased 89,500 ordinary shares
for cancellation at 645.66 pence per share.

Following the transaction the remaining shares in issue total 28,002,880.

31st August 2007


For further information, please contact:

Andrew Norman
JPMorgan Asset Management (UK) Limited, 020 7742 6000

Gavin Tooke
Dresdner Kleinwort - Stockbrokers to the Company
0207 623 8000






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