An importation right is the legal ability to import a product into a certain country.
Importation means "sending goods from one country to another". Right means "in accord with law...."
Specific examples
Under the literal or strict interpretation of United States copyright law, it is illegal to import any copyrighted material into the U.S. Of course, there are many loopholes and exceptions, including:
Some scholars have written that owners of intellectual property, such as trademark and copyright, have an inherent right to import their property rights.
The importation rights of CDs has affected J-pop music.
References
Importation right Wikipedia(Text) CC BY-SA