Worries about China’s domination of critical minerals are driving Western scientists and companies to embark on increasingly novel ways to develop alternative sources. One such effort seeks to exploit a quirk of nature: Certain plants, called hyperaccumulators, absorb large quantities of minerals, like nickel and zinc, from the soil. Cultivating these plants, and then incinerating them for their metal, could provide U.S. companies with a small stream of domestically sourced minerals—without the expense and environmental destructiveness of conventional mining….At a greenhouse in Amherst, MA, scientists undertake gene editing to build a new fast-growing, nickel-absorbing oilseed plant. If successful, the plant could be used to harvest the metal from mineral-rich soils in states such as Maryland and Oregon…

Some 10 million acres of barren, nickel-rich soil are scattered around the U.S. In such areas, concentrations of minerals are generally too low to justify large-scale mining, but could offer opportunity for inexpensive nickel farming. In the case of nickel phyto-mining, as such efforts are known, the plants are dried and incinerated, leaving an ashy nickel concentrate. This concentrate can then be further purified and turned into battery-grade material.

To be sure, phytomining is small in scale. Companies in the field are targeting harvests of around 300 pounds of nickel per acre per year, roughly enough for six EV batteries. But the funding for nickel-farming plants is one small piece of a broad effort by the U.S. government to develop secure supplies of the minerals that are needed for defense and cutting-edge industry, and are an area where China is dominant.

Excerpt from Jon Emont, The New Weapon Against China’s Mineral Dominance: Plants, WSJ,  Jan. 25, 2025