Western investors will struggle to invest in sub-Saharan Africa until they start to spend time on the ground.

This trip revealed a tremendous amount about what Western investors, policymakers, and companies ought to know about these three countries.

Assuming things go according to plan, I’ll spend the next three weeks in Zambia, Mozambique, and Tanzania. The purpose of the trip is to...

Is cobalt a rare earth element? Is uranium a critical mineral? And what’s the difference between minor metals and rare earth elements? I...