Saudi Arabia Just Left China’s Digital Payments Experiment. What Does It Mean for the Dollar?

Saudi Arabia has ended its formal participation in mBridge, a cross-border digital-currency project involving China and other central banks. The decision does not amount to a rejection of digital currencies — but it highlights the geopolitical limits facing efforts to build alternatives to the dollar-based financial system.

Saudi Arabia has quietly stepped away from one of the most closely watched experiments in the future of international payments. The Saudi Central Bank, known as SAMA, has withdrawn from mBridge, a cross-border payment platform developed by several central banks and initially supported by the Bank for International Settlements — a story first reported by the Financial Times and confirmed by SAMA itself.

The platform uses distributed-ledger technology to let participating financial institutions settle transactions directly using central bank digital currencies, aiming to make international payments faster and cheaper while cutting out some of the intermediaries built into traditional cross-border banking.

Saudi Arabia’s participation actually ended back in May 2025, but the withdrawal wasn’t publicly disclosed until now, more than a year later. The timing of that disclosure matters, because mBridge has increasingly been read not just as a payments experiment, but as part of the much broader debate over the U.S. dollar’s future role in the global financial system.

Saudi Arabia Says the Exit Was Planned

SAMA’s own explanation differs meaningfully from any narrative of political pressure forcing an abrupt reversal. The Saudi central bank says it joined mBridge as an observer in 2023 and became a full participant in June 2024, when the project reached its minimum viable product stage.

It then completed its proof-of-concept work on May 13, 2025 — and, per SAMA, simply stopped being a participating member once that phase wrapped up. The bank has characterized the whole arc as consistent with its original plan rather than a policy reversal made under pressure.

That framing matters, and it’s not obviously wrong on its face: Saudi Arabia hasn’t announced it’s abandoning central-bank digital-currency research generally, and its mBridge involvement was always one piece of a broader effort to study emerging cross-border payment technology. Leaving one specific project, in other words, doesn’t automatically mean abandoning the underlying technology.

Still, reporting on the exit adds real texture to that official account — a person familiar with the matter told the Financial Times that Riyadh specifically wanted to avoid remaining publicly linked to the project, even while continuing to engage with it more discreetly behind the scenes. That’s a meaningfully different picture than pure, tidy plan completion.

Why mBridge Matters

Traditional international payments typically route through correspondent banks, multiple currency conversions, and several layers of settlement — a system that’s reliable but slow and often expensive. mBridge was built to test a different model: participating central banks and authorized financial institutions using digital representations of their national currencies on a shared ledger, settling more directly with fewer intermediary steps.

The BIS says the project reached its minimum viable product stage in 2024, aimed squarely at the traditional system’s biggest pain points — high costs, slow settlement, and operational complexity.

China has remained one of the platform’s central participants throughout, which is a big part of why mBridge carries significance well beyond its technical design. If systems like it gain wide adoption, international payments could grow gradually less dependent on the dollar-based correspondent banking infrastructure that currently underpins most of global trade settlement. That doesn’t automatically mean replacing the dollar outright — but it could open additional channels through which international transactions increasingly happen outside that infrastructure.

The Dollar Question

The dollar remains deeply embedded in global finance — extensively used across trade, banking, investment, and foreign-exchange markets, with much of the global financial system built on infrastructure where dollar transactions sit at the center. mBridge explores a genuinely different possibility: direct settlement between participating currencies without necessarily routing through the dollar as an intermediary at all.

That’s exactly why the project has drawn sustained attention in Washington. U.S. officials have previously raised concerns that China could shape the platform’s technical standards and potentially build infrastructure that operates outside the systems the U.S. currently relies on to enforce financial sanctions — concerns that sit inside a much larger, ongoing debate over whether payment-technology shifts could gradually reshape the international monetary system over time.

That debate has an explicitly political dimension attached to it now, too. President Trump has separately threatened BRICS countries with steep tariffs if they pursue a currency meant to replace the dollar, reiterating in January 2025 a threat of 100 percent tariffs against BRICS members who move in that direction.

It’s worth being precise here, though: mBridge itself is not a BRICS initiative, and its participants have never described it as an effort to build a shared common currency — a distinction that matters for understanding exactly what Trump’s threat does and doesn’t actually target.

But mBridge Is Not a Chinese Replacement for SWIFT

An important qualification: mBridge isn’t a new global currency, isn’t a cryptocurrency, and isn’t formally positioned as a Chinese replacement for SWIFT, the dominant messaging network for international bank transfers. It’s a multi-central-bank experiment in cross-border settlement using wholesale central bank digital currencies, and the BIS has explicitly stressed the project was never conceived as a BRICS payment system.

Calling it a direct replacement for the dollar-based system overstates what the platform currently represents. Its actual significance is more incremental: if a growing number of countries build payment systems that make settling trade directly in their own currencies genuinely easier, the practical need for dollar intermediation could decline gradually in specific transaction types — not collapse all at once.

Saudi Arabia’s Position Is More Complicated

Saudi Arabia occupies a genuinely unusual position in all of this. The kingdom maintains a longstanding security and economic relationship with the United States while simultaneously deepening its economic ties with China and other Asian powers — which gives Riyadh a clear incentive to keep multiple financial options open rather than commit fully to either camp.

Its mBridge participation let Saudi officials study an emerging payment technology directly alongside major central banks. Its subsequent withdrawal from formal participation doesn’t necessarily mean its interest in the underlying technology, or in alternative payment arrangements generally, has actually disappeared — especially given that same source’s account of continued discreet engagement even after the public exit.

That combination makes this considerably harder to read as a clean geopolitical realignment in either direction, and more like Saudi Arabia deliberately keeping its options open while managing how visible that hedging looks from Washington.

Cornell economist Eswar Prasad, a senior fellow at Brookings who studies exactly this kind of monetary geopolitics, has noted more broadly that countries pursue platforms like mBridge specifically as a way to reduce dependence on the U.S. dollar over time — a framing that applies to Saudi Arabia’s original motivation for joining even if it doesn’t fully explain the specific timing of this exit.

China Is Still Moving Forward

Saudi Arabia’s departure hasn’t stopped mBridge’s momentum. The remaining central-bank participants include China, Hong Kong, Thailand, and the UAE, and the platform has kept expanding since the Saudi exit rather than stalling. The Monetary Authority of Macao joined in 2026 and activated the system for its participating banks on June 2; on that first day alone, three Macao banks completed 23 cross-border transactions worth nearly 1.3 billion Macao patacas, covering trade settlement and remittances with mainland China, Hong Kong, and the UAE.

By January 2026, Reuters reported the platform had processed more than $55 billion in cumulative transactions; by July 2026, Bank of China said cumulative volume had surpassed 600 billion yuan. Reporting from the South China Morning Post in August 2026 indicated mBridge was moving closer to a broader commercial rollout under a new Hong Kong-based governing entity — meaning the platform’s institutional evolution has been continuing steadily throughout the period Saudi Arabia was quietly stepping back from it.

Notably, Saudi Arabia isn’t even the first major participant to step back. The BIS itself, which launched mBridge in 2021 through its Innovation Hub, exited active involvement in October 2024, framing its own departure as a natural consequence of the project maturing to the point where the remaining central banks could run it independently. That earlier exit didn’t slow the platform down either — which is a reasonable signal that mBridge’s remaining core participants, China chief among them, intend to keep building regardless of who steps in or out around the edges.

What This Actually Signals

Put together, the picture is more nuanced than either “Saudi Arabia is abandoning de-dollarization efforts” or “this proves alternatives to the dollar are gaining unstoppable momentum.” Saudi Arabia completed a defined technical trial, stepped back from formal membership, and — per reporting — kept a quieter hand in the project regardless. Meanwhile, the platform’s remaining members have kept expanding its real transaction volume and institutional footprint throughout 2026, with no sign of the project’s core momentum slowing because one large oil-exporting economy chose not to remain a headline participant.

The more accurate read is probably this: mBridge remains a genuine, functioning experiment in reducing dollar-intermediated settlement for a specific, still-limited set of transactions among a specific set of countries — real, measurable, and growing, but nowhere near displacing the dollar’s central role in global finance.

Saudi Arabia’s exit doesn’t meaningfully change that trajectory either way. What it does illustrate is the genuine geopolitical tightrope a country like Saudi Arabia has to walk when it wants to explore alternatives to dollar-based infrastructure without visibly provoking the country that remains its most important security partner — a tension likely to keep shaping how quietly, rather than how enthusiastically, other U.S.-aligned economies engage with projects like this one going forward.