Apple has been testing memory chips from China’s ChangXin Memory Technologies (CXMT) in iPhones and MacBooks, according to a recent Wall Street Journal report, but the deeper story is that the strategy behind that testing has already failed and is putting the iPhone 18 Pro launch at serious risk.
The WSJ report placed Apple’s CXMT testing inside specific product categories for the first time, building on a Financial Times report from July that Apple had begun qualifying CXMT’s DRAM without specifying where. The goal was never primarily to source chips from CXMT at scale. Apple intended to use a credible Chinese alternative as use against Samsung and SK Hynix, a tactic it has deployed before with OLED suppliers and contract manufacturers, and it has not worked.
Why the Use Play Failed
CXMT has maxed out production for the year and has little room to take on new international customers, having already prioritized domestic buyers including ByteDance, Tencent, and Xiaomi. More critically, CXMT’s prices sit at or above those of Micron, SK Hynix, and Samsung. A fourth supplier only creates meaningful pressure if it can deliver volume at a lower price, and CXMT satisfies neither condition. Samsung and SK Hynix now have more pricing power than before Apple began the CXMT talks, because without a credible cheaper alternative in the market, the Korean chipmakers face minimal pressure to negotiate.
The broader memory market remains hostile, standard DRAM contract prices surged an estimated 55% to 60% in early 2026 as AI server demand pulled capacity away from consumer devices, and both Samsung and SK Hynix have prioritized high-bandwidth memory for data centers over supplying Apple’s consumer product lines. Apple raised prices across Macs and iPads in June, with Tim Cook citing memory costs directly and telling WSJ that the U.S. Should reconsider restrictions on Chinese companies that could otherwise help ease supply constraints.
The $1 Billion Bottleneck
Apple currently has approximately $1 billion in idle processors from TSMC waiting on memory chips needed to complete assembly of the upcoming iPhone models. The iPhone 18 Pro and iPhone 18 Pro Max use A20 Pro chips with Wafer-Level Multi-Chip Module packaging, which integrates the processor and DRAM directly at the wafer level during fabrication. TSMC cannot add memory at a later stage in the production process, so without DRAM on hand, those processors simply wait.
iPhone 18 Pro, iPhone 18 Pro Max, and the foldable iPhone could all face significant supply constraints at launch, with long wait times and preorder sellouts a real possibility. MacBook Air is already showing the strain, with retail sources describing the situation as a “major” shortage and Apple’s online store showing 2 to 6 week delivery estimates.
Regulatory Limits on the CXMT Option
Even if Apple wanted to fully commit to CXMT as a supplier, U.S. Export rules create a hard ceiling on how far that relationship can go. American companies are barred from transferring technology to CXMT, which includes conversations about technical details and product specifications.
Export lawyer Kevin Wolf told WSJ that Apple can purchase off-the-shelf CXMT components and negotiate on price, but cannot commission chips designed to Apple’s own specifications. That constraint matters enormously because Apple typically has memory specially configured to work optimally with its custom silicon, making off-the-shelf CXMT chips a stopgap at best rather than a strategic supply solution.
Congressional Deadline: August 21
A bipartisan group of senators led by Chuck Schumer has written to Apple demanding it rule out using CXMT or YMTC chips in any Apple product sold anywhere in the world, with a response due August 21. Schumer’s letter argues that Apple’s reported proposal to limit Chinese chips to China-market devices “cannot be expected to hold” because the restriction could be reversed with a single procurement decision. He contends the arrangement would harm the U.S. Semiconductor supply chain and set a precedent for other American companies.
CXMT has grown into the world’s fourth-largest DRAM producer, behind Samsung, SK Hynix, and Micron, accounting for roughly 11% of global DRAM wafer capacity. It is state-backed, which is precisely why Congress views any deepening of Apple’s relationship with it as a national security question rather than a routine supply chain decision.
Apple is now caught between a memory market it cannot influence, a Chinese supplier it cannot fully use, and Korean chipmakers with reduced incentive to cut prices, all with a congressional deadline eleven days away. The company’s strategy for managing the memory shortage has left it with less use than it started with, and the downstream costs are beginning to show up in product availability.
