Transaction in Own Shares

AMEC plc

3 December 2012

Transaction in Own Shares

On 21 February 2012, AMEC plc ("the Company") announced that it intended to complete a £400 million share buyback programme within the next twelve months.

Today the Company announces that it has purchased 200,000 of its ordinary shares of 50p each at 1056.2779 pence per share through Bank of America Merrill Lynch, all of which are to be cancelled. This purchase equates to approximately 0.07 per cent of AMEC's current issued share capital excluding Treasury shares prior to this purchase.

The highest purchase price paid was 1067.00 pence per share and the lowest purchase price paid was 1050.00 pence per share.

Following this change AMEC's total issued share capital is 310,473,870 ordinary shares, of which 7,338,161 are registered as Treasury Shares, leaving a balance of 303,135,709 shares with voting rights.

Cumulative purchases to date under the buyback programme amount to approximately £331.63 million.

Going forward, it is the Company's intention that the significant majority of the shares purchased under this programme will be cancelled.

AMEC plc +44 (0)20 7539 5800

Sue Scholes - Director of Communications

Nicola-Jane Brooks - Head of Investor Relations

AMEC (LSE: AMEC) is a focused supplier of consultancy, engineering and project management services to its customers in the world's oil and gas, mining, clean energy, environment and infrastructure markets. With annual revenues of some £3.3 billion, AMEC designs, delivers and maintains strategic and complex assets and employs over 29,000 people in around 40 countries worldwide. See amec.com.