Holding(s) in Company

Carillion PLC
28 April 2008


Schroder Plc

31 Gresham Street, London EC2V 7QA

Telephone [phone] Fax [phone]

www.schroders.com

+-----------------------------------------------------------------------------+
|TR-1: Notifications of Major Interests in Shares                             |
+-----------------------------------------------------------------------------+

+-----------------------------------------------+-------------------------------+
|                                               |                               |
|1. Identity of the issuer or the underlying    |         Carillion Plc         |
|issuer of existing shares to which voting      |                               |
|rights are attached:                           |                               |
+-----------------------------------------------+-------------------------------+
|                                                                               |
|2. Reason for notification (yes/no)                                            |
+--------------------------------------------------------------------+----------+
|                                                                    |   yes    |
|An acquisition or disposal of voting rights                         |          |
+--------------------------------------------------------------------+----------+
|                                                                    |          |
|An acquisition or disposal of financial instruments which may result|          |
|in the acquisition of shares already issued to which voting rights  |          |
|are attached                                                        |          |
+--------------------------------------------------------------------+----------+
|                                                                    |          |
|An event changing the breakdown of voting rights                    |          |
+--------------------------------------------------------------------+----------+
|                                                                    |          |
|Other (please specify):______________                               |          |
+---------------------------------------+----------------------------+----------+
|                                       |                                       |
|3. Full name of person(s) subject to   |             Schroders plc             |
|notification obligation:               |                                       |
+---------------------------------------+---------------------------------------+
|                                       |                                       |
|4. Full name of shareholder(s) (if     |                                       |
|different from 3):                     |                                       |
+---------------------------------------+---------------------------------------+
|                                       |                                       |
|5. Date of transaction (and date on    |               24.04.08                |
|which the threshold is crossed or      |                                       |
|reached if different):                 |                                       |
+---------------------------------------+---------------------------------------+
|                                       |                                       |
|6. Date on which issuer notified:      |               25.04.08                |
+---------------------------------------+---------------------------------------+
|                                       |                                       |
|7. Threshold(s) that is/are crossed or |               17% - 18%               |
|reached:                               |                                       |
+---------------------------------------+-------+--------------------+----------+
+---------------------------------------+-------+--------------------+----------+

+----------------------------------------------------------------------------------------+
|8: Notified Details                                                                     |
+----------------------------------------------------------------------------------------+
|A: Voting rights attached to shares                                                     |
|                                                                                        |
+------------+---------------------+-----------------------------------------------------+
|Class/type  |Situation previous to|Resulting situation after the triggering transaction |
|of shares   |the triggering       |                                                     |
|If possible |transaction          |                                                     |
|use ISIN    +----------+----------+-------------+----------------------+----------------+
|code        |Number of |Number of |Number of    |Number of voting      |Percentage of   |
|            |shares    |voting    |shares       |rights                |voting rights   |
|            |          |rights    |             +-------+--------------+-------+--------+
|            |          |          |             |       |              |       |        |
|            |          |          |             |Direct |Indirect      |Direct |Indirect|
+------------+----------+----------+-------------+------++-------------++------++--------+
|            |          |          |             |      |              |       |         |
|  Ordinary  |          |          |82,894,195.00|      |71,242,461.00 |       |         |
|            |78,493,262|67,144,626|             | N/A  |              |  N/A  | 18.04%  |
|GB0007365546|          |          |             |      |              |       |         |
+------------+----------+----------+-------------+------++-------------++------++--------+
+------------+----------+----------+-------------+------++-------------++------++--------+

+------------------------------------------------------------------------------------+
|B: Financial Instruments                                                            |
|                                                                                    |
+------------------------------------------------------------------------------------+
|Resulting situation after the triggering transaction                                |
|                                                                                    |
+--------------+--------------+--------------+-----------------+---------------------+
|Type of       |Expiration    |Exercise/     |No. of voting    |Percentage of voting |
|financial     |date          |conversion    |rights that may  |rights               |
|instrument    |              |period/date   |be acquired (if  |                     |
|              |              |              |the instrument   |                     |
|              |              |              |exercised/       |                     |
|              |              |              |converted)       |                     |
+--------------+--------------+--------------+-----------------+---------------------+
|              |              |              |                 |                     |
|              |              |              |                 |                     |
+--------------+--------------+--------------+-----------------+---------------------+

+-----------------------------------------------------------------------------------+
|Total (A+B)                                                                        |
|                                                                                   |
+-------------------------------------+---------------------------------------------+
|Number of voting rights              |Percentage of voting rights                  |
+-------------------------------------+---------------------------------------------+
|                                     |                                             |
|            71,242,461.00            |                   18.04%                    |
+-------------------------------------+---------------------------------------------+


+-----------------------------------------------------------------------------+
|9. Chain of controlled undertakings through which the voting rights and /or  |
|the financial instruments are effectively held, if applicable:               |
+-----------------------------------------------------------------------------+
|Schroder Investment Management Limited 69,637,097 17.63%                     |
|Schroder Investment Management North America Limited 1,599,964 0.41%         |
|Schroder &Co Limited 5,400 0.001%                                            |
|                                                                             |
+-----------------------------------------------------------------------------+

+-----------------------------------------------------------------------------+
|Proxy Voting:                                                                |
|                                                                             |
+--------------------------------------+--------------------------------------+
|10. Name of proxy holder:             |                                      |
|                                      |                                      |
+--------------------------------------+--------------------------------------+
|11. Number of voting rights proxy     |                                      |
|holder will cease to hold:            |                                      |
|                                      |                                      |
+--------------------------------------+--------------------------------------+
|12. Date on which proxy holder will   |                                      |
|cease to hold voting rights:          |                                      |
|                                      |                                      |
+--------------------------------------+--------------------------------------+

+--------------------------------------+--------------------------------------+
|13. Additional information:           |The shares referred to in section 9   |
|                                      |are held in portfolios managed by     |
|                                      |those firms on a discretionary basis  |
|                                      |for clients under investment          |
|                                      |management agreements.                |
+--------------------------------------+--------------------------------------+
|14 Contact name:                      |                                      |
|                                      |            Chris Melrose             |
+--------------------------------------+--------------------------------------+
|15. Contact telephone name:           |                                      |
|                                      |            020 7658 4331             |
+--------------------------------------+--------------------------------------+


Note: Annex should only be submitted to the FSA not the issuer

+-----------------------------------------------------------------------------+
|Annex: Notification of major interests in shares                             |
+-----------------------------------------------------------------------------+

+-----------------------------------------------------------------------------+
|A: Identity of the persons or legal entity subject to the notification       |
|obligation                                                                   |
+--------------------------------------+--------------------------------------+
|Full name                             |                                      |
|(including legal form of legal        |             Schroder Plc             |
|entities)                             |                                      |
|                                      |                                      |
+--------------------------------------+--------------------------------------+
|Contact address                       |          31 Gresham Street           |
|(registered office for legal entities)|                London                |
|                                      |               EC2V 7QA               |
+--------------------------------------+--------------------------------------+
|Phone number & email                  |                                      |
|                                      |            020 7658 2521             |
+--------------------------------------+--------------------------------------+
|Other useful information              |                                      |
|(at least legal representative for    |             Andrea Rowe              |
|legal persons)                        |                                      |
|                                      |                                      |
+--------------------------------------+--------------------------------------+

+-----------------------------------------------------------------------------+
|B: Identity of the notifier, if applicable                                   |
+--------------------------------------+--------------------------------------+
|Full name                             |                                      |
|                                      |                                      |
+--------------------------------------+--------------------------------------+
|Contact address                       |                                      |
|                                      |                                      |
+--------------------------------------+--------------------------------------+
|Phone number & email                  |                                      |
|                                      |                                      |
+--------------------------------------+--------------------------------------+
|Other useful information              |                                      |
|                                      |                                      |
|(e.g. functional relationship with the|                                      |
|person or legal entity subject to the |                                      |
|notification obligation)              |                                      |
+--------------------------------------+--------------------------------------+

+-----------------------------------------------------------------------------+
|C: Additional information                                                    |
+-----------------------------------------------------------------------------+
|                                                                             |
+-----------------------------------------------------------------------------+


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