China’s Rare Earths Monopoly — All But Insurmountable
China’s support for Brazilian energy development is not the only angle that the Chinese government is pursuing for its future gain. China’s large reserves of foreign exchange, as well as its national strategic focus, has enabled incomparable — even insurmountable — progress for the Middle Kingdom to corner the world supply of substances called rare earths. Here’s the production chart for the past half century. Obviously, something is going on here.
Now that we’ve seen this chart, the questions arise: What are rare earths? And why are they important?
Rare earths are the 15 elements within the lanthanide series of the periodic table, plus the elements yttrium and scandium. The best known are lanthanum, cerium, neodymium, praseodymium, gadolinium, europium and samarium.
Here’s why rare earths are important. They’re used in a wide range of industrial and electronic applications. For many years, large amounts of lanthanum and cerium have been used in petroleum refining, with the result of increasing yields from each barrel of oil by about 10% while extending the life of other expensive catalysts like platinum. And rare earths find their way into myriad other applications, from aerospace super-alloys to rechargeable cell phone batteries.
More recently, large volumes of rare earths (especially neodymium) have gone into magnets. In fact, rare earths are a key component in strong, permanent magnets. It’s not those cute little refrigerator magnets; your computer contains a number of tiny magnets in its hard drive. If there are no permanent magnets, there are no computers. Or DVDs or DVRs or iPods, etc. Say farewell to your wired way of life.
And then there are the giant 1-ton magnets used in large windmill assemblies. Each windmill magnet is about the size of a car engine and uses 560 pounds of neodymium. The implication is that if the U.S. wants to erect windmills to generate electricity, the nation is making a long-term commitment to buy and use unprecedented amounts of neodymium. And there are NO substitutes. For just this one “clean energy” application, large amounts of rare earths — and the ores and mines to produce them — are essential.
There are many other clean-energy applications for rare earths as well, particularly in the now forming electric car industry. Neodymium magnets are key components in electric motors and regenerative braking systems used in hybrid vehicles. Without these magnets, no electric cars will ever roll off an assembly line, let alone whiz down an American highway.
Another significant demand for rare earths will come from large rechargeable batteries for electric cars. Nickel-metal hydride (NiMH) rechargeable batteries, for example, contain cerium and lanthanum in a form called “mischmetal.” And right now, NiMH batteries are the battery of choice for many hybrid vehicles. Overall, a typical hybrid electric vehicle can use about 50 pounds of rare earths — between the rechargeable battery pack, the permanent magnet motor and regenerative braking system. (Plus other tiny magnets for the sound system, power windows, power seats, windshield wipers, etc.)
So clearly, demand for rare earths is set to skyrocket. Just clean energy applications will drive unheralded demand for metals of which most investors — let alone consumers — have never heard.
It’s also important to keep in mind that almost none of the rare earths used in large power systems (like windmills) or electric vehicles (such as with NiMH batteries) are currently being recycled. The long lifetimes of the magnets and batteries, coupled with the lack of recycling technologies and dedicated facilities, means that any increase in supply can only come from new mining.
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