Beyond the Hype: Mega-Banks and Exchanges Clash with Regulatory Hurdles in Japan’s Stablecoin Push
As Japan cements its position as a global frontrunner in digital asset regulation, the domestic financial sector is pivoting from theoretical discussions to the practical realities of stablecoin deployment.
In a panel discussion hosted at SBI R3 Japan's "Bridging TradFi and Web3" event during Japan FinTech Week, moderator Yusuke Ikunaga of SBI R3 Japan pulled back the curtain on the nation’s stablecoin ambitions with heavyweights from Sumitomo Mitsui Banking Corporation (Hiromitsu Shimoirisa) and crypto exchange SBI VC Trade (Tomohiko Kondo), revealing a landscape brimming with corporate demand but temporarily bottlenecked by stringent regulatory speed limits.
The session offered a rare, dual-lens perspective on the market: SMBC detailing the institutional, issuance-side infrastructure, and SBI VC Trade providing a boots-on-the-ground look at domestic circulation and retail adoption.
SMBC: Targeting Corporate Friction with Trust-Type Stablecoins
For SMBC, the stablecoin thesis is rooted firmly in solving real-world corporate pain points. According to Shimoirisa, the bank’s push into the space—highlighted by its backing of the "Progmat Coin" platform and an announced exploration of a joint stablecoin initiative among Japan's three mega-banks—is driven by direct client demand.
"Global enterprises engaged in cross-border transactions are constantly asking us if stablecoins can solve their settlement issues," Shimoirisa noted. Traditional banking systems are plagued by rigid cut-off times and limited transaction windows, creating significant hurdles for corporate treasury and finance teams. Stablecoins offer a 24/7/365 solution to bypass these legacy constraints.
Rather than issuing a direct bank liability, SMBC is focusing on "trust-type" stablecoins. By utilizing the established legal framework of trust banking, SMBC aims to create a secure, bankruptcy-remote vehicle for digital fiat. However, the bank views itself strictly as an infrastructure provider.
"We are looking to facilitate the issuance, but the actual market-making and utilization will be driven by operating companies and trading houses, such as Mitsubishi Corporation, who have already partnered with us," Shimoirisa added. Looking to the future, SMBC envisions these stablecoins serving as the primary settlement layer for Security Tokens (STs), enabling seamless Delivery versus Payment (DVP) in tokenized asset markets.
SBI VC Trade: The Frontline Realities of USDC in Japan
While SMBC builds the plumbing, SBI VC Trade is actively navigating the flow. Exactly one year ago, SBI VC Trade became Japan’s first registered Electronic Payment Instruments Exchange Service Provider, paving the way for the domestic handling of USDC.
According to SBI VC Trade Representative Director Kondo, the first year of operations yielded surprising data regarding capital flows.
"Initially, we expected the primary use case to be domestic users buying USDC to send offshore," Kondo revealed. "Instead, we are seeing a near 50/50 split. A massive amount of USDC is being remitted into Japan from overseas Web3 wallets, foreign exchanges, and global corporations paying their Japanese partners, which is then converted into Japanese Yen."
Despite this robust demand, Kondo highlighted a severe regulatory bottleneck stifling B2B adoption: Japan's strict 1 million JPY (approx. $6,500) limit per transaction for certain electronic payment instruments.
"If a company needs to move $60,000, they currently have to execute ten separate $6,000 transactions," Kondo explained. Furthermore, regulations mandate that exchanges cannot hold customer fiat balances indefinitely, forcing forced conversions back to Yen. "These rules were designed for retail peer-to-peer transfers, but for corporate finance lines, this is a major operational headache that needs legislative revision."
The Search for Yield and Monetization
A recurring theme during the panel was the search for profitability. With stablecoins essentially functioning as digital cash, how do financial institutions monetize them?
For trust banks like SMBC, the baseline revenue comes from trust administration fees, though the panel acknowledged this alone is insufficient for massive growth. The true monetization engine lies in foreign exchange (FX) spreads and the yield generated by the reserve assets backing the stablecoins.
SBI VC Trade is already leaning into the yield narrative. The exchange recently launched a USDC lending service, offering clients an APY of roughly 5%—a highly attractive proposition for Japanese investors accustomed to zero or negative interest rate environments. However, domestic regulations currently restrict this lending model to foreign-issued stablecoins, creating a fragmented regulatory environment that domestic issuers must navigate.
The 3-to-5-Year Horizon
Looking ahead, both panelists agreed that the next three to five years will be critical for scaling the ecosystem.
For SMBC, the holy grail is achieving interoperability. The goal is a frictionless environment where a stablecoin issued on one blockchain can seamlessly settle a digitized real estate token residing on another.
For SBI VC Trade, the focus remains on expanding utility. Beyond high-yield lending and B2B settlements, Kondo envisions stablecoins permeating everyday life, pointing to ongoing partnerships aiming to enable USDC payments at retail storefronts across Japan.
Ultimately, the panel made one thing clear: Japan has successfully laid the legal groundwork for stablecoins. Now, the industry's task is to refine the user experience, lobby for the easing of restrictive transaction caps, and build the economic incentives necessary to transition digital money from a novel concept to a cornerstone of the Japanese economy.
Norbert Gehrke
