Blocklisting Interim Review

Name of applicant:

DDD Group plc

Name of scheme:

November 5th 2004 share option plan July 29th 2005 share option plan April 24th 2008 share option plan

Period of return:

From:

14 October 2009

To:

13 April 2010

Balance of unallotted securities under scheme(s) from previous return:

2,100,170 (comprising: 893,234 from the 14-Oct-09 block admission; 126,668 from the 11-Nov-09 block admission; and 1,080,268 from the 19-Jan-10 block admission)

Plus:  The amount by which the block scheme(s) has been increased since the date of the last return (if any increase has been applied for):

n/a

Less:  Number of securities issued/allotted under scheme(s) during period (see LR3.5.7G):

1,274,902

Equals:  Balance under scheme(s) not yet issued/allotted at end of period:

825,268

Name of contact:

Victoria Stull

Telephone number of contact:

+1 310 566-3340