Blocklisting Interim Review

SCHEDULE 5 BLOCKLISTING SIX MONTHLY RETURN

1. Name of company DERWENT LONDON PLC 2. Name of scheme Performance Share Plan 3. Period of return:

From 20/11/2009 to 20/05/2010 4. Number and class of shares(s) (amount of stock/debt security) not issued under scheme 87,134 5p ORDINARY SHARES

5. Number of shares issued/allotted under scheme during period 39,034 5p SHARES

6. Balance under scheme not yet issued/allotted at end of period 48,100 5p SHARES

7. Number and class of share(s) (amount of stock/debt securities) originally listed and the date of admission

125,000 5p ORDINARY SHARES

DATE: MAY 21, 2010

Please confirm total number of shares in issue at the end of the period in order for us to update our records

101,180,797

Contact for queries:

Name: Mr T.J. KITE

Address:

25 SAVILE ROW, LONDON W1S 2ER

Telephone: 020 7659 3000