1 Cash - Xinhao Ruiyuan

Bangka Island's tin coinage was a direct product of the island's position as one of the world's most productive tin-mining regions, worked intensively under VOC administration and later the Dutch colonial government. These cash pieces circulated primarily among the Chinese mining communities — the kongsi laborers who extracted the ore — and were issued by trading houses rather than a central monetary authority. The Xinhao Ruiyuan designation identifies the issuing merchant firm, not a government mint.