Summary
South Korea has named Toss Payments — the payment-gateway arm of super-app operator Viva Republica — as preferred negotiator for a ₩9.6 billion (~$6.7 million) government contract to connect the country's deposit-token network to point-of-sale systems used by millions of small businesses. The contract extends Project Hangang's CBDC infrastructure into civilian commerce for the first time.
The critical design decision is backward compatibility: merchants will not need to replace existing POS terminals or rebuild back-office integrations. Toss Payments will bridge deposit-token wallet transactions to the payment rails merchants already use.
Key Facts
- Contract value: ₩9.6 billion (~$6.7 million) from MSIT and KISA
- Project Hangang: South Korea's CBDC initiative using Hyperledger Besu (permissioned blockchain)
- Bank of Korea operates as sole validator under Proof of Authority consensus
- Deposit tokens are blockchain-based representations of bank deposits (not stablecoins or retail CBDC)
- Burn-and-issue protocol ensures atomic settlement: burn → interbank CBDC transfer → reissue
- Nine commercial banks, eight payment gateways, two major retailers in consortium
- Phase 2 authorized up to 500,000 users; large-scale transactions targeting September 2026
- Phase 1 (2025): 7 banks, ~12,000 merchants, ~114,880 transactions, ₩692M volume
- BOK-Wire+ reconciliation gap remains: DCS operates 24/7, legacy system only weekdays 9am-8pm
- Expected benefits: lower transaction fees (bypassing card network intermediaries), faster settlement
Why It Matters
This is the first documented real-world attempt to address both the monetary-system design problem (atomic interbank settlement via wholesale CBDC) and the adoption-friction problem (backward-compatible POS integration) simultaneously at scale. Prior CBDC pilots globally have consistently stalled at the merchant layer because requiring terminal replacement creates an insurmountable adoption barrier. South Korea's approach — combining the BIS "unified ledger" blueprint with practical merchant infrastructure — could become a template for other jurisdictions.