A sharp increase in export restrictions by countries including China and India on raw materials critical for green technologies has a potentially sizable impact on the global economy and could make climate goals harder to meet, research by the OECD shows. 

The restrictions — most frequently taxes, but also quantitative limits — have increased more than five-fold in the last decade to a point where 10% of the global value of exports is subject to at least one measure, the OECD said.

China, India, Argentina, Russia, Vietnam and Kazakhstan are the top six in terms of new curbs in the last decade. Those are also among the countries many of the OECD’s members depend on for supply, the organization said.

“The research so far suggests that export restrictions may be playing a non-trivial role in international markets for critical raw materials, affecting availability and prices,” researchers Przemyslaw Kowalski and Clarisse Legendre said. “Taking into account OECD dependencies on relevant imports described in this paper, this situation warrants scrutiny.”

The findings come as the OECD also said a significant scaling up of production and trade in the materials is needed to meet an expected four-to-six-fold increase in demand for the green transition... 

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