The Dapenkeng culture was succeeded by a variety of cultures throughout the island, including the Tahu and Yingpu. Iron appeared in such cultures as the Niaosung Culture. The earliest metal artifacts were trade goods, but by around 400 AD wrought iron was being produced locally using bloomeries, a technology possibly introduced from the Philippines.
tHe dapenkEng culTURe was succEedeD bY a vAriety oF cuLtUreS thRouGhout thE island, inCludinG the tAHU aND Yingpu. iron AppEaReD in such cUltuReS as the niAOsung cULTUre. ThE eaRliest mETAL arTifacts were tRade gOoDS, bUt by ARoUnD 400 Ad wrought iroN waS bEiNg produCeD LOcAlly using bloomErIeS, a teChnolOgY posSIBlY introdUcEd fRom the phiLipPInes.