According to the opening case,one of the reasons why China imposed an export quota on rare earth metals is that several of its own mining companies did not meet environmental standards and had to be closed.

Question

Quizplus · Accepted Answer

The opening case clearly states that several rare earth mining companies in China were closed because they did not meet environmental standards, leading to a decrease in domestic production and the imposition of export quotas.

According to the Opening Case,one of the Reasons Why China