Ratio CEO John Cho on Stablecoin FX: Asia's Won-to-Rupiah Payments Without the Dollar

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Ratio CEO John Cho explains how won-to-rupiah stablecoin settlement on Kaia removes two dollar conversions, who carries FX risk and Korea's stablecoin law.
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Ratio is an onchain foreign exchange orchestration layer on Kaia, the Layer 1 formed when Kakao's Klaytn merged with LINE's Finschia. It lets a won stablecoin swap directly into an Indonesian rupiah stablecoin at mid-market, then off-ramps one-to-one through the issuer into local rails, removing the two dollar conversions and the correspondent chain that a conventional Asian cross-border payment runs through. John Cho, Ratio's chief executive and co-founder and chief stablecoin officer at the Kaia DLT Foundation, concedes that dollar stablecoin liquidity is deeper by orders of magnitude, then argues the dollar route still loses on total cost: two spreads plus on- and off-ramp tolls of 100 to 500 basis points a leg, against a local-to-local swap at roughly 30 basis points with a one-to-one fiat exit. No treasurer stops pre-funding Nostro accounts because a deck told them to. Cho lists what has to be true first: real-time settlement finality, liquidity available at weekends and off-hours, a guaranteed one-to-one exit with the issuer and compliance native to the flow. Ratio runs proprietary liquidity inside its own stack, carries the FX exposure on its own book if a leg fails and cancels swaps automatically when volatility moves outside preset thresholds. Korea's Digital Asset Basic Act is still expected in the fourth quarter. Cho expects the region's major economies to have stablecoin frameworks within 12 to 24 months, at which point regulated stablecoin settlement stops being crypto and becomes a payment method. His advice for treasury teams with no crypto mandate: benchmark your top three corridors against mid-market, express the all-in cost in basis points and use that number to renegotiate. No mandate is required to measure.