Trump pressures China on chips, oil

The story here is economic pressure, but aimed through two very different pipes. One pipe is semiconductors — the hardware China needs for advanced AI and high-end computing. The other is oil — specifically the Iranian crude that still flows into China’s independent refineries. Over the past week, the Trump administration tightened the second pipe in a very visible way, and it is doing it while keeping chip controls as a standing source of leverage. (home.treasury.gov) ### What happened on the oil side? On April 24, Treasury sanctioned Hengli Petrochemical (Dalian) Refinery Co., a major China-based independent refinery, along with nearly 40 vessels and shipping firms tied to Iranian oil movements. The basic message was simple: if a Chinese buyer keeps helping move Iranian crude, Washington will try to cut that buyer off from the dollar system and from counterparties that do business with the U.S. (home.treasury.gov) ### Why does Hengli matter? Because this was not some tiny shell company. Treasury described Hengli as one of Iran’s largest customers for crude and petroleum products, saying it had bought billions of dollars’ worth. That turns the sanction from symbolic punishment into a signal to the rest of China’s refining network — especially the “teapot” refiners that sit outsi(home.treasury.gov)r discounted Iranian barrels. (home.treasury.gov) ### What changed on April 28? Treasury’s OFAC then widened the pressure with an alert aimed at financial institutions. The warning focused on China’s independent refineries, mainly in Shandong, and told banks and other firms that dealing with those refiners can create sanctions exposure because they remain central to importing and refining Iranian crude through 2026. (home.treasury.gov)t the category as risky. (ofac.treasury.gov) ### Why is China so exposed on Iranian oil? Because China is the market. Treasury says China purchases about 90% of Iran’s oil exports, and teapot refineries account for most of those imports. That means Washington does not need to blockade every shipment. It can pressure the chokepoint buyers, the shippers, the insurers, and the banks around them — basically squeezing the commercial plumbing rather than the oilfield itself. (home.treasury.gov) ### Where do chips fit in? Chips are the parallel track. In January, the Commerce Department revised its licensing policy for advanced semiconductor exports to China, saying chips such as Nvidia’s H200 and AMD’s MI325X could be reviewed case by case under security conditions. That sounds softer than an outright ban, but the real point is discretion. Washington keeps the power to open or close access to the compute China wants most. (bis.gov) ### Why are chips such useful leverage? Because advanced AI chips are not interchangeable. China can build around some restrictions, but frontier training hardware is still a bottleneck. Nvidia’s earlier disclosure showed how abrupt license changes can wipe out a China-specific product line overnight — the company too(bis.gov)actice: one rule change, huge commercial fallout. (nvidianews.nvidia.com) ### So is this about Iran or China? Both. Formally, the oil actions sit inside the Iran “maximum pressure” campaign. But strategically, they also tell Beijing that access — to energy channels, to financing, to top-end compute — can be narrowed whenever Washington wants. Oil punishes a live dependency. Chip controls threaten a future one. (state.gov) ### Bottom line This is coercive leverage, not a diplomatic reset. The administration is stacking pressure on parts of China’s economy that matter for industrial resilience — energy inputs now, AI hardware over time — so any future talks start with constraints already in place. (home.treasury.gov)