- Iran earned up to $43 billion in oil revenue in 2024 despite US sanctions, with the vast majority of sales settled in yuan through China’s CIPS network and a web of shell companies — effectively invisible to Washington’s dollar-based surveillance system.
- China’s CIPS averaged ~$115B/day in the three months since the Iran war began, up from ~$100B/day last year; Russia-China trade is now 90%+ settled in yuan and rubles, up from just 2% before the Ukraine war in 2022.
- China is scaling mBridge — a blockchain-based central bank digital currency platform linking China, UAE, Saudi Arabia, Thailand, and Hong Kong — positioning it as a sanctions-immune alternative to Swift for sovereign transactions.
- The yuan’s share of global trade finance has tripled in five years to 6%, making it the second most-used currency in trade financing; about half of China’s cross-border transactions are now yuan-denominated, up from nearly nothing 15 years ago.
What Happened?
A sweeping WSJ investigation details how China’s parallel financial architecture has systematically eroded the effectiveness of US sanctions against Iran and Russia. Despite Washington’s “maximum pressure” campaign, Iran earned up to $43 billion in oil revenue in 2024, primarily by routing yuan-denominated payments through CIPS, front companies in Hong Kong, and a shadow fleet of tankers with disabled transponders. Chinese refiner Hengli Petrochemical — sanctioned by the US for buying Iranian oil — publicly announced it would shift future purchases to yuan settlement, explicitly to sidestep US monitoring. Ships crossing the Strait of Hormuz were directed to pay Tehran in yuan or cryptocurrency. The Iran-China 25-year strategic pact signed in 2021 explicitly envisioned oil-for-infrastructure barter arrangements designed to operate outside the dollar system.
Why It Matters?
The dollar’s dominance in roughly 80% of global trade finance has historically meant most international transactions pass through US-monitored banking systems — giving Washington unparalleled power to police global commerce. Yuan-settled transactions on CIPS bypass this entirely. Russia demonstrated the same dynamic after 2022: total CIPS volume has doubled since Ukraine, and 90%+ of Russia-China trade now settles outside the dollar. mBridge takes this further by enabling instant government-to-government payments that don’t touch US financial infrastructure at all. Beijing is also allowing digital yuan accounts to earn interest, making it a viable reserve asset. The UAE — a major US defense partner — has signaled it may shift oil sales to yuan if dollar reserves come under pressure. These aren’t marginal workarounds; they represent a systematic rewiring of the global payments order.
What’s Next?
The US-Iran nuclear negotiations create a short-term irony: Washington’s most powerful leverage — sanctions relief and access to ~$100B in frozen assets — is less compelling precisely because Iran has learned to survive without it. The structural question is whether the dollar’s role in global finance is undergoing a slow but irreversible erosion, driven not by a single challenger but by the steady accumulation of yuan-denominated “lanes” that Washington cannot monitor or shut down. The Treasury has stepped up efforts to curtail Iranian oil sales to China, including new sanctions on Hengli and threatened penalties on Chinese banks — but the fundamental architecture problem persists.
Source: The Wall Street Journal
