Shinhan Card and the Solana Foundation signed a memorandum of understanding on April 30, 2026, committing both parties to an advanced proof-of-concept (PoC) on Solana's testnet. The agreement was signed by Shinhan Card VP Kim Youngil and Solana Foundation APAC Head of Business Development Luin. The deal covers three main areas: customer-to-merchant payment flows, non-custodial wallet verification (a setup that gives users direct control over their own funds), and a hybrid payment model that connects traditional credit and debit card structures with decentralised finance (DeFi) mechanisms using oracle technology. Oracles are software tools that feed real-world data, such as transaction records, into blockchain systems. Any commercial rollout, both parties acknowledged, depends on South Korean regulatory approval.

Building on a Year of Groundwork

The MOU formalises a working relationship that started in 2025, when Shinhan Card CEO Changhoon Park and Solana Foundation CEO Lily Liu began discussions on payment innovation. A Phase 1 PoC completed in mid-2025 validated six technical areas: peer-to-peer blockchain payments, digital asset payment infrastructure, a stablecoin-backed hybrid debit and credit card model, cross-border remittance settlement (tested alongside Visa), stablecoin exchange and settlement networks, and a hardware wallet card using IC chip technology. Phase 1 partners included Visa, Fireblocks, Mastercard, and two Korean firms, Aton and BlockOdyssey.

The 2026 PoC adds oracle integration, tests smart contract execution stability, and introduces system monitoring frameworks, moving closer to production-ready infrastructure. The non-custodial wallet component is new to this phase and requires additional security assessment before any regulatory submission can be made.

Shinhan Card said it intends to "rigorously verify the practical applicability of blockchain technology and proactively explore next-generation financial models." The Solana Foundation described the partnership, in comments reported by Asia Business Daily, as an effort to "overcome limitations of existing financial services by combining the trustworthiness of traditional finance with DeFi efficiency." In a separate statement reported by BloomingBit, the foundation emphasised that the initiative would prioritise regulatory compliance throughout its development.

The Regulatory Bottleneck

Whether this PoC becomes a real product depends heavily on legislation that is still being written. South Korea's proposed Digital Asset Basic Act, introduced by the ruling Democratic Party in April 2026 after being delayed repeatedly from 2025 due to stablecoin governance disputes, sets out to define how stablecoins are issued and used. The Bank of Korea is pushing for a rule that would limit won-pegged stablecoin issuance to banks with at least 51% ownership stakes in the issuing entity. The Financial Services Commission has cautioned that such a restriction would shut out fintech companies and slow innovation. The bill would also classify stablecoins used in cross-border transactions as foreign exchange payment instruments, a category with its own compliance requirements that could directly affect the remittance use cases Shinhan has already been testing.

Implementing regulations under the proposed law are expected by July 18, 2026, with full enforcement starting January 18, 2027. That timeline means the Shinhan and Solana teams are effectively building toward a regulatory window they cannot yet see clearly.

Lee Seong-san, Solana Foundation's Korea head, described South Korea as "the most dynamic market in Asia," pointing to high digital asset trading volumes, institutional openness, strong developer talent, and sophisticated financial infrastructure. He also stated that "blockchain is at an inflection point, moving beyond a simple technology experiment and becoming real financial infrastructure."

Solana's On-Chain Position and Regional Momentum

Solana's stablecoin market cap stood at roughly $14 to $15 billion in January 2026, up approximately three times from $5 billion a year earlier. USDC accounts for 55.7% of that total. Transaction fees on the network typically run below $0.01, often under $0.00025, and settlement finality currently averages around 0.4 seconds. Those figures underpin Solana Foundation's pitch to incumbent financial institutions looking to cut costs. When the foundation launched its Solana Developer Platform on March 24, 2026, with over 20 institutional partners including Mastercard, Worldpay, and Western Union, participating institutions reported cost reductions of up to 65% compared to legacy payment systems.

The Shinhan Card deal fits within a wider regional shift. StraitsX and RedotPay, two Southeast Asian stablecoin card platforms, saw transaction volumes grow 40 times and card issuance grow 83 times between 2024 and 2025, according to CoinDesk data from March 2026. Meta began routing USDC creator payments through Solana and Polygon in Colombia and the Philippines just one day before this MOU was announced.

What Comes Next

If a won-denominated stablecoin eventually moves from testnet to mainnet under this partnership, it would carry significance well beyond South Korea. Korean manufacturing supply chains extend through Bangladesh, Vietnam, and Pakistan, and South Asian migrant workers in South Korea represent one of the country's largest remittance-sending groups. African markets seeking alternatives to SWIFT rails for KRW-denominated trade settlement would also stand to benefit, as a live KRW stablecoin on a public blockchain would be the first issued by a G20 economy in that form. A stablecoin on a public blockchain could reduce dependence on correspondent banking across all of those corridors.

For now, the project sits in a testnet environment, waiting on lawmakers. If South Korea's Digital Asset Basic Act advances in its current form, the country could become the third major Asian regulatory anchor for digital assets, following Hong Kong and the UAE, a designation that analysts say would unlock institutional mandates for live stablecoin payment products across the region. South Korea's regulatory outcome over the next six months will determine whether this partnership becomes a reference case for institutional blockchain payments in Asia or a well-documented experiment that stops short of deployment.