Large Japanese banks support Solana, SBI and SMFG promote online finance in Asia

Japan's two major financial giants chose Solana to build a new ecosystem of online finance

When one of Japan's largest financial groups and the top five large banks decided to create new online financial projects on Solana, this exceeded the significance of regular cooperation. SBI Holdings and Sumitomo Mitsui Financial Group (SMFG) are reorganizing the original SBI R3 Japan alliance into SBI Solana Global, with the Solana Foundation joining as a core member. The move connects a strictly regulated financial group directly to an unlicensed first-layer network in a bold way rarely seen among traditional financial institutions.

The plan focuses on specific financial application scenarios: yen-denominated stablecoins, tokenized real-world assets (covering bonds, funds and real estate), cross-border payment channels, and institutional chain financial services. The cooperation clearly aims to connect Japan's strictly regulated financial markets with global blockchain liquidity and build Tokyo into an on-chain financial center in Asia. This is not a proof of concept, but a business line transformation supported by a banking business valued at $300 billion.

Why choose Solana and why now

SBI is not new to the digital asset field. It runs a cryptocurrency exchange, has invested in Ripple, and manages blockchain funds. However, the choice of Solana marks a departure from its previous alliance-style enterprise blockchain path with R3 's Corda. Solana's high throughput, low costs and increasingly sophisticated institutional tools make it a viable infrastructure for large-scale asset tokenization, but the network's cyclical downtime has been a concern for risk-averse financial institutions. SBI's willingness to reshape the entity around Solana shows that its calculated bets on the network's reliability-backed by Firedancer upgrades and validator diversity efforts-have now reached the institutional threshold.

Solana has made steady progress in the real-world asset space. At the same time, the total value of RWA in the chain recently exceeded US$20 billion, mainly driven by the tokenization of government bonds and private credit agreements. Solana's developer activity still ranks among the best among major blockchains, second only to Ethereum and BNB Chain. These indicators are likely to influence SBI's infrastructure decisions.

stablecoins and the regulated yen track

The ambition to issue yen stablecoins under a regulatory framework is the most influential link. Japan has established a stable currency licensing system, and large banks such as Mitsubishi UFJ have also explored issuing their own currencies. SBI's partnership with Solana could lead to a widely used and compliant yen stablecoin that connects domestic payment systems with the DeFi protocol and global settlement networks. If SMFG participates in distribution and reserve management, the stablecoin will receive bank credit endorsements that are beyond the reach of privately issued alternatives.

Cross-border payments are another area that may advance rapidly. Japan's remittance channels, especially within the Asian region, have large transaction volumes and high costs. A channel based on stablecoins and running on Solana sub-second finality is expected to reduce agent bank costs if it meets anti-money laundering and sanctions compliance standards. SBI uses SBI Remit's experience in international remittances to equip it with operational capabilities to deploy beyond pilot projects.

Regulatory wind helps

Japan's regulatory posture makes this opportunity particularly eye-catching. While U.S. lawmakers are still debating cryptocurrency legislation, Tokyo provides a clearer path. The Financial Services Agency of Japan has issued a stablecoin issuance license and actively encourages the development of Web3 business. SBI's move is clearly a direct use of this regulatory certainty to build a vertically integrated on-chain financial stack that covers asset origination, tokenization, custody, and payment execution, all under Japanese supervision.

But this does not mean that the market will immediately accept it. Japanese institutional investors have been cautious about DeFi earnings, and retail users 'adoption of stablecoins remains low relative to cash and bank deposits. The cooperation needs to demonstrate clear practicality-likely starting with interbank settlement or the tokenization of agency bonds-to attract broader liquidity.

Remaining Questions

There are still several issues outstanding in the announcement. Specific timetables and capital commitments of each party were not disclosed. It is unclear how the renamed entity will handle interoperability with other networks and what role SBI's existing Ripple relationship will play. Solana's ability to handle large-scale regulated issues will be tested; compliance at the protocol level is still being improved. The success of a Japan-centered chain market depends on whether Asian institutional liquidity providers are willing to use Solana's native settlement channels to replace existing systems.

Still, the combination behind this alliance-a financial group, a large bank and a top-level blockchain-is unusual enough to redefine expectations for the accelerated process of wholesale chain finance from white papers to balance sheets.