US stock markets fell hard on Friday after President Trump reacted to new export restrictions on rare earth metals from China with a threat to add a further 100% tariff on imports from China in addition to the 57% tariff currently in force. Trump walked back that threat over the weekend and at the time of writing futures have rallied about 50% of the decline from Friday’s lows before pulling back somewhat.
So what is the rare earths issue about? Well for those who don’t already know, rare earths are vital for a lot of manufacturing of complex machinery such as cars, jet engines, nuclear reactors & LEDs, are also important in oil refining, and are vital for a lot of high tech manufacturing such as computer components, smartphones, high performance batteries etc. There is a good page about rare earths on wikipedia here which is worth a read.
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