Transaction in Own Shares

AMEC plc

4 February 2013

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.

Further to the announcement on 21 December 2012 of its irrevocable, non-discretionary Prohibited Period Share Repurchase Programme, the Company announces that under the terms of that programme it has today purchased for cancellation 132,000 ordinary shares in the Company at a price of 1078.82 pence per share through Deutsche Bank AG. This purchase equates to approximately 0.04 per cent of AMEC's current issued share capital excluding Treasury shares prior to this purchase.

The highest purchase price paid was 1086.00 pence per share and the lowest purchase price paid was 1075.00 pence per share.

Following this change AMEC's total issued share capital is 304,268,804 ordinary shares, of which 6,760,077 are registered as Treasury Shares, leaving a balance of 297,508,727 shares with voting rights.

Cumulative purchases to date under the buyback programme amount to approximately £397.87 million.

AMEC plc +44 (0)20 7429 7500

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.