Scrip Dividend Reference Pric

RNS Number : 9783K

Costain Group PLC

28 April 2010

Costain Group PLC
("Costain" or "the Company")

Scrip Dividend Reference Price

The Company announces that the Scrip Dividend Reference Price for the fully paid shares in the Company to be issued to shareholders who elect to receive the scrip dividend alternative for the final dividend for the year ended 31 December 2009 is 24.3 pence per ordinary share of 5 pence each.

The Scrip Reference Price has been calculated in the usual way as the average of the middle market quotations for the Company's shares as derived from the Daily Official List of the London Stock Exchange for the five business days commencing on the ex-dividend date. The Company's ordinary shares were marked ex-dividend on 21 April 2010.

Further Information

Shareholders wishing to receive the scrip dividend in respect of the final dividend for the year ended 31 December 2009 and who have not already submitted a mandate form, should return a mandate form to Equiniti Limited, Share Dividend Team, Aspect House, Spencer Road, Lancing, West Sussex BN99 6DA to arrive no later than 29 April 2010.

Mandate forms and the scrip dividend booklet containing the terms of the Company's scrip dividend scheme are set out on the Company's website at:

http://www.costain.com/investors/shareholder-details/dividend-history.aspx

If you have already completed a valid scrip dividend mandate form, it will remain valid until you cancel your election and you need not return any documentation to receive this scrip dividend.

The final dividend for the year ended 31 December 2009, including the scrip dividend, will be paid on 21 May 2010 (the dividend payment date) to the ordinary shareholders of the Company on the register at close of business on 23 April 2010 (the record date).

Shareholders should note that shareholders are being asked to approve a consolidation of the Company's ordinary share capital at the Company's Annual General Meeting to be held on 6 May 2010 (the "Share Consolidation"). If the resolution to effect the Share Consolidation is approved by shareholders, the Share Consolidation will become effective on 6 May 2010 and, as this date is prior to the dividend payment date, the Costain shares that will be allotted and issued to shareholders who elect to receive the scrip dividend will be Costain's new ordinary shares with a par value of 50p each. Accordingly, the number of shares so allotted and issued in connection with scrip dividend will be adjusted to reflect the Share Consolidation (on the basis of one ordinary share of 50p each for each 10 ordinary shares of 5p each). Any fractions of shares arising will be disregarded, with any surplus cash balance being carried forward to the next dividend payment date in the usual way.

For further information please contact Equiniti on 0871 384 2270. Calls to this number are charged at 8p per minute from a BT landline. Other telephony provider costs may vary.

28 April 2010

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