Stablecoins and CBDCs dominate the evolving digital money are splitting digital money into very different camps
Brazil is tightening the screws on stablecoin settlement, Saudi Arabia has stepped back from a major multi-CBDC project, and Hong Kong is pressing ahead with tokenized money and round-the-clock digital settlement. Same sector, very different instincts. The real story is simple: countries are choosing different roles for stablecoins, CBDCs, and tokenized deposits instead of converging on one neat model.
- Brazil: stablecoins barred from regulated FX settlement
- Saudi Arabia: withdraws from mBridge after the proof-of-concept phase
- Hong Kong: pushes 24/7 CBDC settlement and regulated stablecoins
- Big picture: control, not ideology, is shaping digital money policy
For crypto users, this matters because the plumbing is being redrawn underneath the market. Stablecoins are the workhorse for cross-border transfers because they move fast and are usually easier to settle than bank wires. CBDCs, by contrast, are digital money issued by a central bank, usually aimed at banks and institutional settlement rather than retail speculation. Governments are deciding which tools they will tolerate, which they will supervise, and which they will keep out of the official rails.
Brazil draws a hard line around stablecoins in foreign exchange
Brazil’s central bank, the Banco Central do Brasil (BCB), is moving to prohibit regulated electronic foreign exchange, or eFX, providers from using stablecoins or other virtual assets to settle payments with foreign counterparties from October 1. The rule comes through Regulatory Framework and Licensing for Stablecoin Issuers, issued on April 30.
Under the new rule, payments between an eFX provider and a foreign counterparty must be settled through a traditional FX transaction or by moving funds in a non-resident’s Brazilian-real account held in Brazil. In plain English: if you are a regulated provider, the central bank wants settlement inside rails it can monitor, tax, supervise, and control.
The rule also bars eFX providers and foreign counterparties from offsetting amounts owed to each other. That closes another backdoor for netting arrangements that could blur the line between regulated foreign exchange and digital-asset settlement.
This is not a blanket ban on crypto, but it is a meaningful restriction on how stablecoins can be used inside formal cross-border finance. Brazil is making a clear choice: digital assets may exist, but they will not become a shadow settlement layer for the regulated FX market.
Existing providers without authorization have until May 31, 2027 to apply. That gives the market time to adjust, but the direction of travel is obvious. The BCB is not smashing the door down; it is tightening the hinges and checking the locks.
Brazil’s broader virtual-asset framework already allows certain international digital-currency payments and transfers, but treats them as foreign-exchange operations subject to BCB authorization, AML/KYC checks, transaction limits, reporting requirements, and verification of self-custody wallet owners and asset origins and destinations. That is a strong signal that Brazil is not anti-digital-asset. It is anti-uncontrolled leakage.
That distinction matters. A lot of governments like blockchain innovation right up until it starts moving money outside the channels they can see. Then the enthusiasm gets a lot less shiny.
Saudi Arabia leaves mBridge, but the exit is not necessarily a referendum on CBDCs
Saudi Arabia has withdrawn from mBridge, the multi-central bank digital currency project aimed at improving cross-border payments. That naturally sparked speculation, because whenever a major state steps away from a CBDC experiment, the internet starts hunting for geopolitical drama.
But the more cautious reading is probably the right one. The Financial Times reported on September 20 that Saudi Arabia’s involvement was always meant to be limited and that it would be “inaccurate to draw any wider inference” from the withdrawal.
That matters. Saudi Arabia’s exit does not automatically mean the project is dead, and it does not prove a grand regional rejection of CBDCs. Sometimes a participant tests a platform, learns what it needs, and steps back. Not every move is a market-crashing conspiracy. Occasionally, it is just institutional housekeeping in a suit.
Still, mBridge is worth watching. In its 2022 pilot, it processed 164 real-value payment and FX transactions worth more than $22 million over six weeks. That is not theoretical white-paper stuff. It is real money moving through a system designed to make cross-border settlement faster, cheaper, and less operationally painful than the usual correspondent-banking maze.
The project reached minimum viable product, or MVP, status in June 2024, with Saudi Arabia added as a full participant. The BIS then “graduated” from the project in October 2024, handing the work to the central bank partners. In 2025, the UAE and China carried out the first cross-border transaction using a CBDC on mBridge.
That is why Saudi Arabia’s departure is still worth noting even if it is not some thunderclap. mBridge sits in a bigger debate over whether cross-border payments can move away from slow, expensive, correspondent-bank-heavy rails and into more direct wholesale settlement systems. If it works, the upside is lower cost, faster settlement, and fewer operational headaches. If it stalls, it becomes one more good idea trapped in central-bank committee land.
Hong Kong is going the other way: more tokenization, more stablecoins, more hours on the clock
If Brazil is tightening and Saudi Arabia is easing off, Hong Kong is doing the opposite. Chief Executive John Lee Ka-chiu said in the city’s 2026 Policy Address, delivered on September 16, that the HKMA plans to implement CBDC settlement and round-the-clock operations under EnsembleTX by around the end of 2026.
EnsembleTX is the pilot phase of Project Ensemble, Hong Kong’s wholesale CBDC project launched in 2024. Wholesale CBDC means digital central-bank money for banks and financial institutions, not for ordinary consumers. The HKMA said in its 2025 annual report that EnsembleTX would operate throughout 2026 and be progressively enhanced to support settlement in tokenized central bank money on a 24/7 basis.
That is a serious signal. Hong Kong is not treating tokenized finance as a side experiment for conference panels and glossy slide decks. It is building market infrastructure around it.
“The launch of EnsembleTX, the pilot phase of Project Ensemble, marks a significant advance in supporting real-value transactions involving digital assets and tokenized deposits, ” the HKMA said in its annual report.
“our next goal is to enable round-the-clock settlement in tokenized central bank money.”
That last line is the key. Hong Kong is trying to create a supervised system where tokenized deposits, stablecoins, and wholesale CBDC settlement can operate under different rules, but inside a coherent framework. That is not crypto anarchism. It is controlled acceleration: build the rails, license the players, and let the market move as long as it stays within the fence.
Lee also said the Securities and Futures Commission, or SFC, would “promote the trading of regulated stablecoins on licensed virtual-asset trading platforms and their use in the settlement of tokenised money market funds.” In plain terms, stablecoins are being treated as a supervised instrument for serious financial use, not just as fuel for speculative nonsense.
Hong Kong’s stablecoin regime is now real. The city passed the Stablecoin Ordinance in May 2025, and in April this year the HKMA granted its first stablecoin issuer licenses under that law. That puts Hong Kong among the few jurisdictions trying to formalize stablecoins instead of just firing off warnings every time retail froth gets too loud.
The city has also kept expanding its broader digital-asset framework. In June 2025, it published Hong Kong and Japan Lead Asia’s Blockchain Payments Push, introducing the LEAP framework. By January of this year, Hong Kong had issued licenses to 11 virtual asset trading platforms. And in February, Financial Services and the Treasury Secretary Christopher Hui said the SAR planned to submit a draft digital-assets framework “within this year.”
The message is consistent: Hong Kong wants to be a serious digital-asset hub, but one built on licensing, supervision, and institutional settlement rather than fantasy-football libertarianism. That may frustrate the purists, but it is probably the only version that can survive in a major financial center.
What this divergence really means
The easy take is to turn this into a tribal fight: stablecoins good, CBDCs bad, or the reverse, depending on which corner of crypto Twitter you woke up in. That misses the real shift.
Brazil is trying to prevent stablecoins from becoming a parallel FX settlement system outside official oversight. Saudi Arabia has stepped back from a multilateral CBDC project, at least for now. Hong Kong is building a supervised stack of tokenized deposits, regulated stablecoins, and wholesale CBDC settlement.
That divergence matters because it shows governments are not all trying to force digital money into the same mold. Some want tighter control. Some want interoperability. Some want a state-supervised bridge between traditional finance and blockchain rails. A few want all of the above and a conference photo to go with it.
It also matters for businesses and users. Stablecoins can be useful for remittances, trading, treasury management, and cross-border settlement, but they are only as strong as the issuer, the reserves, and the rules around freezes and compliance. CBDCs may offer cleaner institutional settlement, but they are not designed to be permissionless money. Every model has trade-offs. There is no magic money button.
The biggest takeaway is that digital money is not heading toward one global standard. It is fragmenting into different systems with different levels of access, surveillance, and settlement speed. Some countries will keep the gates open wider than others. Some will bolt them shut. A few, like Hong Kong, are trying to build a very tidy gate and charge admission.
Key questions readers should be asking
-
Is Brazil banning stablecoins?
No. Brazil is restricting their use in regulated FX settlement with foreign counterparties. That is a meaningful limitation, but it is not a blanket ban on stablecoins or crypto more broadly. -
Does Saudi Arabia’s exit kill mBridge?
No. Saudi Arabia’s withdrawal is real, but the Financial Times reported that its role was always intended to be limited and that it would be wrong to read too much into the move. -
Why does mBridge matter?
Because it is one of the clearest attempts to build faster, cheaper cross-border settlement outside the usual correspondent-banking bottlenecks. If it scales, it could make wholesale payments far less painful. -
What is Hong Kong trying to build?
A regulated digital-money stack that includes tokenized deposits, licensed stablecoins, and wholesale CBDC settlement. The goal is not anarchic crypto freedom; it is supervised financial infrastructure. -
Are stablecoins and CBDCs competing ideas?
Sometimes, yes, but not in every use case. Stablecoins are already useful for fast transfers and market settlement, while CBDCs are being built mainly for institutional plumbing and central-bank-controlled settlement. -
What is the bigger trend here?
Governments are deciding whether digital money will be an open settlement layer or a supervised extension of existing finance. The fight is over custody, compliance, and control - not whether digital assets exist at all. -
Will this change how money moves across borders?
Yes, but unevenly. Some jurisdictions will tighten stablecoin use, others will license it, and a few will build CBDC-style rails to compete with older payment systems. The result will be messier, not cleaner.
The next phase of digital money is not going to look like one smooth global rollout. It is going to look political, fragmented, and a bit awkward, with some countries shutting doors, others opening regulated gates, and a few trying to do both at once. That may be less sexy than the hype cycle, but it is a lot closer to where the real power is moving.
For the policy backdrop, Bank for International settlement work on mBridge remains a useful reference point, while Hong Kong’s own approach is being shaped by the city's Regulatory Framework and Licensing for Stablecoin Issuers. The contrast with Trump Signs Order to Boost Bitcoin, Ban CBDCs, and Promote and Trump’s 2025 Executive Order Boosts Crypto, Bans CBDCs shows just how politically charged this fight has become.
