This excerpt taken from the AMCN 20-F filed Apr 30, 2008.
U.S. HOLDERS ARE URGED TO CONSULT THEIR TAX ADVISORS ABOUT THE APPLICATION OF THE U.S. FEDERAL TAX RULES TO THEIR PARTICULAR CIRCUMSTANCES AS WELL AS THE STATE AND LOCAL AND FOREIGN TAX CONSEQUENCES TO THEM OF THE PURCHASE, OWNERSHIP AND DISPOSITION OF ADSs OR ORDINARY SHARES.
The discussion below of the U.S. federal income tax consequences to U.S. Holders will apply if you are the beneficial owner of ADSs or ordinary shares and you are, for U.S. federal income tax purposes,
If you are a partner in a partnership or other entity taxable as a partnership that holds ADSs or ordinary shares, your tax treatment will depend on your status and the activities of the partnership.
The discussion below assumes that the representations contained in the deposit agreement are true and that the obligations in the deposit agreement and any related agreement will be complied with in accordance with the terms. If you hold ADSs, you should be treated as the holder of the underlying ordinary shares represented by those ADSs for U.S. federal income tax purposes.
The U.S. Treasury has expressed concerns that intermediaries in the chain of ownership between the holder of an ADS and the issuer of the security underlying the ADS may be taking actions that are inconsistent with the beneficial ownership of the underlying shares (for example, pre-releasing ADSs to persons who do not have the beneficial ownership of the securities underlying the ADSs). Accordingly, the availability of the reduced tax rate for dividends received by certain non-corporate U.S. Holders (discussed below) could be affected by actions taken by intermediaries in the chain of ownership between the holder of ADSs and our company if as a result of such actions the holders of ADSs are not properly treated as beneficial owners of underlying shares.