Shinhan Card, South Korea’s second-largest credit card provider, has signed a memorandum of understanding with Solana Foundation to conduct advanced proof-of-concept testing for stablecoin payments and hybrid TradFi-DeFi services. The partnership, announced April 30, 2026, follows completion of an initial pilot project in early April that tested six payment infrastructure areas including P2P transfers, cross-border remittances, and blockchain-integrated merchant solutions. The move positions Shinhan to compete with Samsung Card, which overtook it for market leadership in March 2026 with a 17.02% market share versus Shinhan’s 16.9%.
Why Shinhan Card Is Moving to Blockchain Payments
Shinhan Card’s pivot to Solana reflects competitive pressure in South Korea’s fintech sector. The initial PoC, completed in April 2026, tested six distinct use cases: P2P payments, digital asset integrated payment infrastructure, stablecoin-based hybrid credit products, cross-border remittances, direct stablecoin payments, and IC chip-based card services for crypto wallets. The framework targets retail merchants directly, aiming to reduce friction between traditional payment rails and decentralized finance. Solana Foundation partnership gives Shinhan access to the blockchain’s throughput advantages—critical for merchant-scale adoption where payment latency remains a barrier to mainstream use.
Market Context: Stablecoin Payments Gaining Institutional Backing
Shinhan’s advanced testing arrives as major payment networks accelerate blockchain integration. Visa launched USDC settlement services on Solana in December 2025, signaling institutional confidence in stablecoin infrastructure. Mastercard and BC Card have similarly explored stablecoin payment rails, though with limited public rollout data. Shinhan’s 16.9% market share, while below Samsung Card’s 17.02%, still represents significant merchant reach—making the issuer a material test case for DeFi-linked payment adoption in Asia’s third-largest economy. No financial terms for the partnership have been disclosed.
DeFi Integration and Oracle-Driven Smart Contracts
The advanced PoC will focus on blockchain oracles and smart contracts to link stablecoin payments with traditional credit and debit infrastructure. This hybrid model addresses a core friction point: most merchants and consumers operate primarily on fiat rails, while DeFi services remain siloed. By embedding oracle-verified price feeds and automated contract execution into card payment flows, Shinhan aims to unlock use cases like instant cross-border settlement and programmable merchant incentives. The structure mirrors infrastructure plays from Visa and Mastercard but targets the Solana ecosystem specifically, avoiding Ethereum’s congestion and higher settlement costs.
Next Steps and Unresolved Variables
The partnership does not specify a timeline for advanced PoC completion or commercial rollout. No specific stablecoin has been named for testing, though USDC remains the institutional standard following Visa’s December 2025 integration. Samsung Card’s March 2026 market share gain may accelerate Shinhan’s blockchain strategy—regulatory approval in South Korea remains the critical unknown. The Financial Services Commission has historically taken a cautious stance on crypto integration, making any retail merchant rollout contingent on regulatory clearance.
