Stopping Overseas Subsidies Act - Amends the Tariff Act of 1930 to apply countervailing duties to nonmarket economies.
Authorizes the use of alternative methodologies in determining whether a subsidy is countervailable with respect to the People's Republic of China (PRC).
Requires congressional approval for revocation of nonmarket economy country determinations made by the administering authority.
Requires a United States International Trade Commission study of how the PRC uses government intervention to promote investment, employment, and exports.