Buy-back of Shares

26 May 2010

PME AFRICAN INFRASTRUCTURE OPPORTUNITIES PLC

("PME" or the "Company") (AIM: PMEA.L; PMEW.L)

Buy-back of shares

PME African Infrastructure Opportunities plc, an investment company established to invest in sub-Saharan African infrastructure and infrastructure related industries, announces that on 25 May 2010 it purchased 350,000 ordinary shares of USD0.01 each in the Company ("Shares") at a price of USD 0.62 per Share.

The Shares purchased by the Company will be held in treasury. Following the buy-back, the Company's share capital consists of 151,274,752 Shares, of which 6,330,000 Shares are held in treasury. Therefore the total number of voting rights in the Company is 144,944,752.

For further information on the Company, please refer to the website at www.pmeinfrastructure.com.

Further enquiries:

Note to Editors:

- PME African Infrastructure Opportunities plc ('PME') is a company investing in sub-Saharan African infrastructure and infrastructure related industries. Its shares were admitted to AIM in July 2007 raising US$180 million.

- PME was established to invest in sub-Saharan African infrastructure and infrastructure related industries with a view to generating attractive returns, principally through capital growth. It is targeting opportunities arising from years of under investment in sub-Saharan African infrastructure where that infrastructure will be instrumental in allowing the continent's economic development to continue to grow.

- The Investment Manager is PME Infrastructure Managers Limited ('PMEIM'). The Investment Manager is responsible for identifying new investment opportunities.

- PMEIM is a joint venture between Principle Capital Holdings S.A. (AIM: PCX.L), Unicos Partners LLP (holding company of the Helvetica Group of companies), Masazane Capital (Pty) Limited and the interests of Richard Bouma, CEO of PMEIM.