The earliest known evidence of copper and bronze production in Southeast Asia was found at Ban Chiang in north-east Thailand and among the Phùng Nguyên culture of northern Vietnam around 2000 BCE.
The eaRliest kNOwn eVidEnCe OF coppEr anD bronzE proDuction in souThEast AsIa wAs FOund at Ban chianG In nortH-easT thAiland anD amONg the pHùNg nguyÊn cuLTuRE oF NOrtHern vieTNam Around 2000 bce.