Saudi Arabia Exits mBridge Blockchain Payment System

Saudi Arabia's central bank has withdrawn from mBridge, the China-led blockchain payment system built to let central banks settle cross-border transactions in digital currencies, according to a Financial Times report that circulated widely among crypto-focused accounts on X on September 20, 2026. The move pulls the world's largest oil exporter out of a project that had been read by some observers as a step toward settling energy trade outside the dollar system.

mBridge began in 2021 as a joint venture of the Bank for International Settlements (BIS) and the central banks of China, Hong Kong, Thailand and the United Arab Emirates. The platform uses distributed ledger technology to let participating central banks issue and exchange digital currencies directly with one another, cutting out the layers of correspondent banks and the SWIFT messaging network that typically sit between two countries' financial systems. By late 2025, the network had processed roughly $55.5 billion in cumulative transaction volume across its members.

Saudi Arabia's central bank, known as SAMA, joined mBridge as an observing member in 2023 and was upgraded to full participant status in June 2024. Over the following months, SAMA ran the platform through a minimum viable product proof of concept, testing its settlement mechanics before deciding not to continue as an active participant. Throughout, the kingdom characterized its involvement as exploratory research rather than a commitment to operational integration, a framing that let it study the technology without tying its financial infrastructure to a Chinese-anchored settlement network.

The exit lands almost a year after the BIS itself stepped back from active involvement in mBridge in October 2024, citing the project's maturity and handing day-to-day governance to the founding central banks. With the BIS gone and now Saudi Arabia out, the remaining core participants, China, Hong Kong, Thailand and the UAE, are pushing mBridge toward commercial rollout under a Hong Kong-based entity, operating without the oversight of the Basel-based standard-setter that designed it. That shift raises fresh questions about how the platform will handle sanctions compliance and international governance standards once it sits fully in the hands of its member central banks.

For crypto markets, the more closely watched implication is what Saudi Arabia's departure means for the so-called petroyuan narrative, the idea that Riyadh might eventually settle oil sales in yuan or another non-dollar currency through blockchain rails rather than the dollar-denominated system that has anchored global energy trade for decades. Saudi Arabia's presence in mBridge had lent that scenario credibility precisely because SAMA is the central bank of the world's top oil exporter. Without it, the platform loses one of its most strategically significant members and, with it, much of the near-term case for a non-dollar oil settlement channel emerging from the project. The episode is a reminder that state-level CBDC experiments and retail-facing blockchain fraud, like the wave of AI-themed crypto scams that have targeted retail users this year, sit on opposite ends of the same broader shift toward digital settlement rails, one driven by central banks and the other by criminal actors exploiting the same underlying technology.

The timing also lands alongside heightened scrutiny of state-linked actors in crypto more broadly. Multiple government agencies detailed North Korea's WaterPlum hacking campaign in a joint advisory, covered in a separate investigation into state-sponsored crypto theft, that has already put governments on edge about how blockchain rails, legitimate and illicit alike, are reshaping cross-border finance. mBridge itself was always a narrower, state-sanctioned experiment than a retail payment network, but the governance questions raised by Saudi Arabia's exit echo that broader unease: as blockchain-based settlement systems mature outside the reach of legacy institutions like the BIS and SWIFT, the mechanisms for enforcing sanctions and monitoring flows become harder to standardize.

None of this necessarily kills mBridge. China, Hong Kong, Thailand and the UAE remain committed to the project, and Gulf interest in blockchain-based settlement has not disappeared. Broader crypto market sentiment has also stayed resilient even as macro and geopolitical headlines pile up, a dynamic visible in moves like Bitcoin's push past the $80,000 level earlier this year. But for now, mBridge's clearest path forward runs through Beijing, Hong Kong, Thailand and Abu Dhabi rather than through Riyadh, and the dollar's dominant role in oil settlement looks, for the moment, intact.

FAQ

What is mBridge?
mBridge is a blockchain-based cross-border payment platform launched in 2021 by the Bank for International Settlements and the central banks of China, Hong Kong, Thailand and the UAE, designed to let central banks settle international payments directly using digital currencies instead of routing through correspondent banks and SWIFT.

Why did Saudi Arabia leave mBridge?
According to the Financial Times, Saudi Arabia's central bank completed its testing phase and decided not to continue as an active participant, having always described its involvement as exploratory research rather than a long-term operational commitment.

Does this mean oil will keep being priced in dollars?
For now, yes. Saudi Arabia's exit removes one of the strongest signals that oil settlement might shift toward non-dollar, blockchain-based channels, leaving the dollar's role in global energy trade unchallenged in the near term.

Is mBridge shutting down?
No. China, Hong Kong, Thailand and the UAE remain committed participants and are moving the platform toward commercial rollout under a Hong Kong-based entity, though without the Bank for International Settlements' oversight, which it withdrew from in October 2024.