SEA - 17th September 2007

Blocklisting Six Monthly Return

1. Name of company

Carillion plc

2. Name of scheme

(a) Sharesave Scheme and (b)Executive Share Option Scheme

3. Period of return:

16 March 2007 to 17 September 2007

4. Balance under scheme from previous return:

Sharesave Scheme - 60,017 ordinary shares of 50p each

Executive Share Option Scheme - 210,564 ordinary shares of 50p each

5. The amount by which the block scheme has been increased, if the scheme has been increased since the date of the last return:

Nil

6. Number of shares issued/allotted under scheme during period:

Sharesave Scheme - nil

Executive Share Option Scheme - nil

7. Balance under scheme not yet issued/allotted at end of period:

Sharesave Scheme - 60,017

Executive Share Option Scheme - 210,564

8. Number and class of shares originally listed and the date of admission:

12 January 2000 - 2,000,000 ordinary shares of 50p each

12 January 2000 - 500,000 ordinary shares of 50p each

19 December 2002 - 1,801,801 ordinary shares of 50p each

9. Total number of shares in issue at the end of the period:

281,242,738

Tim George

Deputy Company Secretary

Carillion plc

Tel: 01902 318137

17 September 2007