AstraZeneca Annual Report and Form 20-F Information 2008

Taxation for US residents

The following summary of the material UK and US federal income tax consequences of ownership of Ordinary Shares or ADRs held as capital assets by US resident shareholders is based on current UK and US federal income tax law, including the US/UK double taxation convention relating to income and capital gains, which entered into force on 31 March 2003 (the Convention). This discussion is also based in part on representations of JPMorgan Chase Bank as depositary for ADRs and assumes that each obligation in the deposit agreement among the Company, the depositary and the holders from time to time of ADRs and any related agreements will be performed in accordance with its terms. The US Treasury has expressed concerns that parties to whom ADRs are pre-released may be taking actions that are inconsistent with the claiming, by US holders of ADRs, of foreign tax credits for US federal income tax purposes. Such actions would also be inconsistent with the claiming of the reduced tax rate, described in the UK and US Income Taxation of Dividends section, applicable to dividends received by certain non-corporate US resident shareholders. Accordingly, the availability of the reduced tax rate for dividends received by certain non-corporate US resident shareholders could be affected by actions that may be taken by parties to whom ADRs are pre-released.

This discussion assumes that we are not, and will not become, a passive foreign investment company (PFIC).