KB Financial, the largest financial group in South Korea, said it has completed a proof of concept for a full KRW stablecoin payment flow, covering issuance, offline payments, merchant settlement, and overseas remittances. The project was carried out with electronic payment company KG Inicis, Layer 1 blockchain Kaia, and digital asset solutions firm OpenAsset. The main focus was to connect payment and settlement functions that usually sit across separate systems into one integrated process.
According to the announcement, the user-facing experience changes very little. The settlement layer is what shifts, with smart contracts handling execution in the background. KB’s approach is clear: consumers do not need to learn blockchain tools or change how they pay, while the underlying rails handle settlement faster and at lower cost.
Offline payment demo used a coffee chain kiosk with no wallet installation
For in-store payments, KB used a self-order kiosk from coffee chain Hollys as the demonstration venue. Consumers could complete payment by scanning a QR code, without installing a digital wallet. Once the payment was triggered, smart contracts automatically processed settlement in the backend, while merchant receipt and reconciliation were handled on-chain with no manual work involved.
This structure is aimed at reducing friction. The checkout flow stays familiar, while blockchain remains invisible to the customer. For a traditional financial group, that makes the model closer to an upgrade of existing payment infrastructure than the launch of a new crypto-facing product.
KRW stablecoin converted through Kaia before remittance to Vietnam
The strongest numbers in the PoC came from cross-border transfers. In the test flow, the KRW stablecoin was swapped into a U.S. dollar stablecoin through Kaia’s on-chain liquidity, then transferred into an actual bank account through a local partner in Vietnam. KB said the entire process took less than 3 minutes, while fees were about 87% lower than a traditional SWIFT wire.
That stands in contrast to the current SWIFT model, which typically takes 1 to 3 business days for cross-border remittances and often involves multiple intermediary banks, each adding cost and complexity. In this setup, Kaia acted as the liquidity hub. The chain, formerly known as Klaytn, has been repositioning itself as cross-border payment infrastructure for Asia. It had already completed a South Korea–Vietnam stablecoin pilot in April, and the KB test expands on that path.
KB is preparing for launch before Korean stablecoin rules are finalized
KB said one purpose of the PoC is to be ready to launch as soon as regulation allows it. South Korea’s Digital Asset Basic Act remains stalled over the issue of who should be allowed to issue KRW stablecoins. The Bank of Korea has maintained that only banks should be permitted to issue them, and the legislative timetable is now expected to slip to late 2026 or even early 2027.
So the company is not moving into immediate commercial rollout yet. It is building the system first and validating operational flows during the regulatory gap. Competition is already forming. The source material notes that Kakao Group recently began its own KRW stablecoin plan, targeting payments, remittances, and capital market use cases. Even before the legal framework is in place, positioning in the KRW stablecoin market is already accelerating.