The Kedah menteri besar says more are expected to be called.

The decision, widely seen as retaliation for US curbs on sales of technologies to China, raised concerns that China might limit exports of other materials, notably rare earths, whose production China dominates.

Edgard Kagan says developing new sources for critical minerals to ensure reliable supply chains is a very high priority for the Biden administration.

Rare earths are a group of elements that have applications in electronics manufacturing and batteries, making them important for the global transition towards cleaner sources of energy and in defence.

Donald Trump offered to buy Greenland to help counter China's current dominance of worldwide rare earth supplies.

China controls about 90% of the supply of the world’s rare earths, which are essential for many modern systems.