Saudi Arabia has quietly withdrawn from mBridge, a China-led cross-border digital-currency project designed to make international payments faster and potentially reduce reliance on traditional dollar-based payment infrastructure.
The withdrawal was not announced when it happened.
The Saudi Central Bank, known as SAMA, confirmed to the Financial Times that it completed its proof-of-concept work on May 13, 2025, and ceased being a participating member afterward. Riyadh said the departure was part of the original plan for its involvement.
The development is attracting attention because mBridge has become one of the most closely watched experiments in international payments outside the conventional dollar- and SWIFT-centered system.
But the Saudi decision needs to be put in context.
It does not mean Saudi Arabia has abandoned central-bank digital currencies, blockchain payments or financial cooperation with China.
Instead, SAMA’s explanation is that its participation was limited and exploratory and ended after the planned proof-of-concept phase.
Saudi Arabia Joined At A Critical Moment
Saudi Arabia initially became involved in mBridge as an observer in 2023 before joining as a full participant in 2024.
SAMA said its objective was to investigate wholesale central bank digital currencies, or wholesale CBDCs, and determine whether the technology could make cross-border settlement between commercial banks more efficient.
When Saudi Arabia joined the project’s minimum viable product phase in June 2024, SAMA described the initiative as part of its broader effort to build innovative cross-border payments infrastructure.
At that point, the project had already brought together major financial authorities from China, Hong Kong, Thailand and the United Arab Emirates, with the BIS playing a central role during its development.
The timing also made Saudi participation particularly significant.
Saudi Arabia is one of the world’s most important energy exporters and has historically been deeply integrated into the dollar-based international financial system.
Its participation therefore attracted attention well beyond the technology itself.
What Exactly Is mBridge?
mBridge is not simply a cryptocurrency.
It is a multi-central-bank digital-currency payment and settlement platform designed to allow participating central and commercial banks to conduct cross-border transactions using wholesale CBDCs.
The project uses distributed-ledger technology, or blockchain-style infrastructure, to allow transactions and foreign-exchange settlements to occur directly between participating jurisdictions.
The BIS says the project was created to address several weaknesses in traditional cross-border payments, including high costs, slow settlement and operational complexity.
The technology is potentially important because international payments frequently involve correspondent banks and multiple intermediaries.
A multi-CBDC platform could theoretically allow participating financial institutions to settle transactions more directly.
That could reduce settlement times and costs.
It could also reduce the need for the US dollar to serve as an intermediary currency in some transactions.
And that is where the geopolitical significance begins.
Why Washington Has Been Watching
The technological experiment has become entangled with a much larger debate over the future of the global financial system.
The United States maintains enormous influence through the dollar, US financial institutions and payment networks such as SWIFT.
A system that allows countries to conduct cross-border transactions directly using their own central-bank digital currencies could eventually reduce reliance on parts of that existing infrastructure.
US officials have therefore raised concerns about China’s potential influence over technical standards and the possibility that alternative payment systems could complicate the enforcement of American financial sanctions.
That does not, however, establish that Washington forced Saudi Arabia to leave mBridge.
The FT reported that a person familiar with the matter said it would be inaccurate to draw a broader conclusion from Saudi Arabia’s withdrawal because the kingdom’s involvement had been limited from the beginning.
SAMA’s own explanation is even more straightforward: the bank says it completed the planned proof of concept and then stopped participating.
The Saudi Exit Wasn’t Publicly Announced
One reason the story is generating attention now is that Saudi Arabia’s departure was not publicly disclosed when it occurred.
The kingdom completed its proof of concept in May 2025, but its withdrawal only became public through the latest Financial Times report and SAMA’s confirmation.
That means the market is learning about a decision more than a year after the formal end of Saudi Arabia’s participation.
The delayed disclosure is especially notable because Saudi Arabia had joined mBridge at a time when the project was attracting considerable international attention.
The BIS Had Already Stepped Back
Saudi Arabia is not the first major participant to leave the project’s original structure.
The Bank for International Settlements exited mBridge in October 2024, handing the initiative over to its central-bank partners.
The BIS described its departure as a planned transition rather than a failure of the project.
Former BIS General Manager Agustín Carstens said at the time that the institution had effectively “graduated” from the initiative and that its departure was not driven by political considerations.
The distinction matters.
mBridge was originally developed through cooperation involving the BIS Innovation Hub, the People’s Bank of China, the Hong Kong Monetary Authority, the Bank of Thailand and the Central Bank of the United Arab Emirates.
Saudi Arabia subsequently joined as a full participant.
After the BIS handed the project over, the initiative continued under the participating central banks.
Saudi Arabia Is Not Turning Its Back On Digital Payments
Perhaps the most important detail is what the withdrawal does not mean.
SAMA’s participation in mBridge was part of its investigation into wholesale CBDCs and cross-border payment technology.
Leaving one project does not mean the Saudi central bank has abandoned research into digital financial infrastructure.
Indeed, SAMA’s original announcement emphasized the potential for wholesale CBDCs to improve cross-border payment and settlement efficiency.
That means Saudi Arabia can retain the technological experience gained through the project while pursuing other payment arrangements.
In other words, the kingdom may have left the platform without leaving the underlying technology debate.
China Still Has A Major Role In The Project
The Saudi withdrawal also does not mean mBridge itself has disappeared.
The platform reached its minimum viable product stage in 2024, according to the BIS.
The system was designed to support real-value transactions, subject to participating jurisdictions’ readiness, and its architecture allows additional technology applications and interoperability experiments.
China remains one of the project’s central participants.
That gives Beijing a potentially important role in the development of alternative cross-border payment infrastructure.
But describing mBridge as a replacement for the dollar today would go too far.
The project remains an evolving payment experiment rather than an established global replacement for the existing international monetary system.
What This Means For The Dollar
The Saudi departure comes at a time when the future of the dollar’s dominance is already under intense discussion.
The dollar remains the world’s principal reserve and international transaction currency, and the existing financial infrastructure remains deeply embedded across global trade and finance.
But countries have increasingly explored ways to diversify payment channels, reduce transaction costs and lessen dependence on individual currencies or financial intermediaries.
mBridge is one example.
Other initiatives include bilateral digital-currency experiments, regional payment systems and efforts to increase direct local-currency settlement.
Saudi Arabia’s participation — and subsequent withdrawal — therefore provides another data point in the larger debate.
It does not by itself demonstrate that the dollar is losing its dominant position.
Nor does it demonstrate that China’s renminbi is replacing the dollar.
What it demonstrates is that major economies continue to experiment with alternatives and that geopolitical considerations increasingly overlap with payment technology.
The Bigger Question Is What Saudi Arabia Does Next
Saudi Arabia occupies a unique position in this debate.
It is a major US security partner, one of the world’s largest oil producers and an increasingly important economic partner for China.
Riyadh has simultaneously expanded relations with Beijing while maintaining deep financial and security ties with Washington.
That makes its decisions on payment infrastructure particularly significant.
The kingdom’s exit from mBridge could therefore be interpreted in several ways — as the completion of a limited technology experiment, as a decision to pursue different digital-payment arrangements, or simply as a planned conclusion to its role.
The available evidence does not establish that one explanation is definitive.
The strongest documented explanation remains SAMA’s own: the proof-of-concept was completed and its participation ended according to the original plan.
mBridge Is Still Moving Forward
Despite Saudi Arabia’s withdrawal, the broader project continues to develop.
The BIS says mBridge was designed to allow additional central banks and commercial banks to participate through its legal and technical framework.
Its architecture is intended to support real-time peer-to-peer payments and foreign-exchange transactions while experimenting with interoperability and additional applications.
That means the real test of mBridge has not ended.
The important question is whether such systems can move beyond pilot programs and become widely used infrastructure for actual international commerce.
If they do, the implications could eventually extend far beyond faster payments.
They could influence how currencies are exchanged, how sanctions are enforced, how financial data moves across borders and how much intermediary power individual financial centers retain.
Saudi Arabia’s Exit May Be Quiet — But The Debate Is Getting Louder
For now, Saudi Arabia’s withdrawal should not be mistaken for a dramatic break with China or a declaration against the dollar.
Riyadh says it completed the work it set out to do.
But the timing and secrecy of the disclosure ensure that the decision will be scrutinized against the larger contest over global payments.
China is continuing to develop alternatives to traditional cross-border payment infrastructure.
The US remains determined to protect the international role of the dollar.
And countries such as Saudi Arabia are navigating between the two systems while building their own financial and technological capabilities.
The most important part of Saudi Arabia’s mBridge story may therefore not be that Riyadh walked away — but what the kingdom chooses to build, test or join next.
