Elon Musk, despite not being a huge fan of philanthropy, runs America’s fifth-largest charitable private foundation. Unlike other organisations with similar budgets, however, the Musk Foundation says almost nothing about its work. So we scoured its tax returns to find out where the money goes.

Elsewhere, we report that China is dominating yet another industry related to critical minerals: the recycling of “black mass”, a powder containing valuable metals that comes from shredding the batteries of EVs. Now China’s rivals are scrambling to keep up.