Transaction in Own Shares

AMEC plc

17 March 2010

Transaction in Own Shares

AMEC plc announces that on 16 March 2010, it purchased 100,000 of its ordinary shares of 50p each at 771.27 pence per share through Deutsche Bank AG. All of these shares will be held as Treasury shares. This purchase equates to approximately 0.03 per cent of AMEC's current issued share capital excluding Treasury shares prior to this purchase.

AMEC's total issued share capital is 337,965,871 shares. Following the purchase of these shares, AMEC plc holds 6,081,072 of its shares in Treasury and has 331,884,799 ordinary shares in issue excluding Treasury shares.

AMEC plc +44 (0)20 7539 5800

Sue Scholes - Director of Communications

Nicola-Jane Brooks - Investor Relations

AMEC plc

AMEC (LSE: AMEC) is a focused supplier of high-value consultancy, engineering and project management services to the world's natural resources, nuclear, clean energy, water and environmental sectors. With annual revenues of over £2.5 billion, AMEC designs, delivers and maintains strategic and complex assets for its customers. The company employs over 21,000 people in around 40 countries worldwide. See amec.com