Beijing, China – China is proposing a ban on exports of several rare earth metals, which could affect hybrid automobile and catalytic converter production, according to a report by the Green Car Congress.

A draft report by China’s Ministry of Industry and Information Technology is proposing a ban or quota on several rare metals. China currently mines more than 95 per cent of the world’s rare earth metals.

According to the report, each Toyota Prius uses about 11 kilograms of rare earth elements, while cerium and lanthanum, which would be restricted to a quota, are used in catalytic converters for diesel engines.

The Japanese government has drawn up a strategy for ensuring stable supplies of rare metals, calling for stockpiling and plans to secure resources overseas.

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