There may be a fortune buried in a forgotten corner of Europe

The ancient scooter gurgling through a languid summer afternoon brought groceries and a fistful of cash to Sasa Antic’s house. Like many of his neighbors, the 30-year-old Serb hasn’t had a job for some time so the family relies on the arrival of his mother’s pension.

Yet buried in the ground beneath this forgotten corner of former Yugoslavia is the prospect of becoming a new European front in the economic battle with Asia. Geologists are exploring the hilly landscape for the metal that’s become ubiquitous in modern technology: lithium.