安溪青阳下草埔冶铁遗址
What industrial labour stood behind the wealth of a maritime emporium?
Xiacaopu lies on a hillside south of Qingyang Village in Anxi, in the Daiyun Mountains roughly 70 kilometres from Quanzhou. The protected landscape exceeds 10,000 square metres and includes a smelting area, ancient mine pits, an old trail, fuel-producing hills and the ancestral house site of the Yu iron-smelting family.
Excavation and laboratory testing identify a bloomery process using small blast furnaces and charcoal. Sponge iron was produced first, then further heated into ingots before being cast elsewhere. Radiocarbon dates from more than ten charcoal samples cluster around the 10th and 11th centuries, consistent with coins and ceramics recovered on site.
The nomination describes Qingyang as one of the dedicated iron plants established by the Song government. That interpretation places industrial regulation, woodland fuel, mining and transport inside Quanzhou's economic territory. It does not prove that every ingot was shipped overseas, but it does reveal the material base on which regional commerce depended.