Coupang and Woori Bank completed a KRW stablecoin payment and settlement PoC, described as Korea's first end-to-end validation covering payment, real-time settlement, and on/off-ramp all in a live-equivalent environment. The tested flow: Coupang Eats order payment routes through a KRW stablecoin and settles to merchants in real time. Woori Bank handled the on/off-ramp piece, linking digital wallets to bank accounts to convert between stablecoin and fiat. The infrastructure choice is notable, this ran on Tempo, a stablecoin-specific L1 where Coupang is an early partner and investor. Tempo's other backers include Stripe, Visa, Mastercard, and Deutsche Bank, so Coupang isn't just testing someone else's rail, it has a stake in the underlying chain itself. The stated benefit for small merchants is faster cash turnover and lower financial costs versus traditional settlement, and Coupang flagged a broader ambition, if the stablecoin ends up circulating and being used like actual currency across Coupang's ecosystem and beyond, that expands the distribution loop further.