Blocklisting six monthly return

Name of applicant:

DDD Group plc

Name of scheme:

July 6th 2006 share option planApril 24th 2008 share option plan

December 4th 2009 share option plan

Period of return:

From:

1 April 2011

To:

30 September 2011

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

130,000 (comprising: 130,000 from the 15 December 2010 block admission - announced 9 December 2010)

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):

1,085,996 (11 May 2011 block admission - announced 5 May 2011)

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

609,330

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

606,666

Name of contact:

Victoria Stull

Telephone number of contact:

+1 310 566-3340