A massive 2,000-year-old Gaya Confederacy gold-refining complex has been unearthed near Gimhae, South Korea. The site features high-temperature smelting furnaces, specialized clay crucibles, and stone molds for creating intricate gold filigree jewelry, confirming the region's historical reputation as a major center for high-end metallurgy in ancient East Asia.
The discovery includes evidence of advanced cupellation processes used to extract pure gold from ore, a technique that was exceptionally sophisticated for the 1st century CE. Archaeologists believe this industrial hub was the primary source of the legendary 'Gaya gold' found in elite tombs across the Korean Peninsula and the Japanese Archipelago, highlighting the confederacy's role in trans-continental luxury trade.