If the judgment cannot be enforced in China, what the foreign party can do to protect its legal right

China is not a signatory of the CONVENTION ON THE RECOGNITION AND ENFORCEMENT OF FOREIGN JUDGMENTS IN CIVIL AND COMMERCIAL MATTERS and also, there are only few countires which have the bi-lateral agreement with China. Therefore, there are a lot of non-Chinese judgments cannot be enforced in China. The only way for the foreign parties is to file the lawsuit in China.