Apple is testing CXMT memory chips across product lines that include iPhones and MacBooks as the company searches for additional suppliers during an unusually tight period for the global memory industry.
The Wall Street Journal reports that Apple has evaluated memory produced by China’s ChangXin Memory Technologies, known as CXMT. Early discussions have also taken place about using its components in selected devices sold in China.
No supply agreement has been finalized, and testing does not mean CXMT chips have entered commercial iPhone or MacBook production. Apple appears to be preparing a possible supply route that could be activated if the components pass qualification and the company obtains sufficient political assurance from Washington.
The talks place Apple between two competing pressures. It needs more memory capacity to protect production volumes, yet adding a prominent Chinese semiconductor manufacturer would expose the company to scrutiny from US lawmakers concerned about technology transfers, national security and dependence on state-supported suppliers.
Testing Comes Before Sourcing
Apple regularly evaluates components from multiple manufacturers before deciding which suppliers can participate in mass production. Memory qualification can cover performance, power consumption, thermal behavior, packaging compatibility, manufacturing consistency and long-term reliability.
A chip that functions inside a prototype is not automatically ready for millions of consumer devices. Apple must determine whether CXMT can produce the required specifications repeatedly and at the volumes demanded by iPhone and MacBook manufacturing.
Yield consistency is especially sensitive. Small variations that appear manageable during limited testing can become expensive when multiplied across tens of millions of devices. A new supplier must also maintain output across multiple quarters while meeting Apple’s delivery and quality requirements.
The current testing reportedly reaches more than one product category. That suggests Apple is studying CXMT’s DRAM for both mobile and computer applications rather than evaluating a single chip for one regional iPhone configuration.
DRAM is the active memory used by applications and the operating system. It is different from NAND flash, which provides persistent storage for photos, apps and documents. CXMT specializes in DRAM, while another Chinese company previously considered by Apple, Yangtze Memory Technologies, is primarily associated with NAND storage.
Inside an iPhone, DRAM works closely with the A-series processor and affects multitasking, imaging and on-device AI operations. MacBooks use unified memory connected to Apple silicon, allowing the CPU, GPU and Neural Engine to access the same memory pool.
Qualifying CXMT for both platforms would require Apple to test different capacities, performance targets and packaging arrangements. Approval for one iPhone configuration would not necessarily qualify the supplier for a MacBook or another memory capacity.
A Fourth Major DRAM Supplier
Apple currently depends on established memory producers including Samsung Electronics, SK hynix and Micron. Those three companies account for most global DRAM production, giving device manufacturers few alternatives when available capacity becomes constrained.
CXMT has emerged as the largest Chinese producer capable of challenging that concentration. Counterpoint Research estimated that the company became the fourth-largest DRAM supplier by shipments in 2025, holding approximately 8% of the market. Its share reportedly approached 9% during the first quarter of 2026.
The company remains far smaller than Samsung, SK hynix or Micron, but its growth gives hardware manufacturers another possible source. HP, Asus and Acer have reportedly qualified CXMT memory and begun using limited quantities in notebooks intended for markets outside the United States.
Apple’s interest would represent a larger test of CXMT’s ability to satisfy the standards of a global consumer electronics company. Apple commands enormous component volumes and often requests customized packaging, performance characteristics and production commitments.
The immediate attraction is additional capacity rather than a dramatic technology advantage. Demand from AI data centers has redirected semiconductor investment toward high-bandwidth memory and other profitable server products, tightening the supply available for conventional computers and smartphones.
Standard DRAM contract prices reportedly increased by an estimated 55% to 60% during the first part of 2026. Apple has already raised prices across several hardware categories while warning that memory expenses and supply constraints are affecting its operations.
Adding CXMT would give Apple another negotiating position when discussing long-term contracts with its existing suppliers. Even if CXMT provides only a limited share of production, the option could reduce the risk of relying almost entirely on three companies competing for the same capacity.
China-Only Devices Offer a Narrow Route
Apple’s discussions reportedly focus on using CXMT components in some devices sold in China. Restricting the chips to that market could simplify logistics and support Apple’s effort to use more locally produced components in locally sold products.
A China-only arrangement could also avoid placing CXMT memory inside iPhones and MacBooks shipped to the United States. It would not, however, remove the political issue because Apple is an American company making a potentially substantial commitment to a Chinese semiconductor producer.
China remains one of Apple’s largest consumer markets and its most extensive manufacturing base. The company must remain competitive against Chinese smartphone manufacturers that already have access to domestic supply chains and government-supported component producers.
Local sourcing could help Apple manage costs for devices sold in China, where aggressive pricing from Huawei, Xiaomi, Oppo and Vivo has placed pressure on the iPhone. It may also strengthen Apple’s relationship with Chinese industrial partners at a time when the company is diversifying some assembly to India and Southeast Asia.
Using different memory suppliers by region would not be unprecedented. Consumer electronics manufacturers regularly source functionally equivalent components from several companies. Apple has previously sold the same device model with components from different display, modem and storage suppliers.
Customers would not normally choose which company produced the DRAM inside an iPhone or MacBook. Apple would be expected to certify equivalent performance and reliability across every approved configuration, although detailed teardowns could eventually identify regional component differences.
Political Resistance May Block the Deal
CXMT appears on the US Department of Defense list of Chinese military companies operating in the United States under Section 1260H. The Pentagon states that CXMT is directly affiliated with China’s Ministry of Industry and Information Technology and indirectly affiliated with Chinese state bodies.
Inclusion on that list is politically damaging, but it is not identical to placement on the Commerce Department’s Entity List. It does not automatically create a universal prohibition preventing every American company from purchasing all CXMT products for commercial devices.
Apple is reportedly seeking support from the White House before proceeding. The company wants assurance that a future policy change will not abruptly block the supplier after Apple invests time and money in qualification.
US lawmakers are pushing in the opposite direction. Republican Rep. John Moolenaar and Democratic Rep. George Whitesides sent a letter to Commerce Secretary Howard Lutnick urging the administration to prevent American companies from purchasing memory from CXMT, YMTC and other designated Chinese suppliers.
The lawmakers argue that US purchases could help subsidized Chinese companies gain market share at the expense of Micron and allied manufacturers. They have also raised concerns about supply-chain security and the possibility that commercial relationships could provide Chinese companies with access to American technical knowledge.
China rejects many US military-company designations and presents CXMT as a domestic semiconductor success created in response to foreign technology restrictions. The disagreement leaves Apple exposed to policy decisions from both countries.
Washington could impose tighter procurement or export-control rules after Apple completes technical testing. Beijing could also place conditions on local production or prioritize CXMT capacity for Chinese manufacturers. Passing Apple’s laboratory tests would solve only the engineering portion of the problem.
Testing Does Not Promise Lower Prices
CXMT’s participation would not guarantee cheaper iPhones or MacBooks. The supplier’s available capacity is already attracting interest from Chinese device manufacturers and international PC brands, limiting Apple’s ability to demand a large discount.
CXMT also faces restrictions on access to advanced foreign chipmaking equipment. Expanding output while improving density, power efficiency and yields requires substantial investment, and those costs can reduce the price advantage associated with domestic Chinese production.
Apple could use CXMT primarily to protect availability rather than lower retail prices. An additional supplier might help the company keep assembly lines moving when Samsung, SK hynix and Micron cannot provide enough memory, even if the per-chip cost remains elevated.
Consumers should not expect an immediate product change. Supplier qualification can continue for months, and Apple may complete the process without ever placing a commercial order. Political resistance or insufficient production capacity could keep CXMT outside Apple’s shipping products despite successful technical tests.
If a deal proceeds, the first CXMT-equipped devices are expected to be selected models intended for China. Their arrival would probably be identified through supply-chain records and physical component analysis rather than an Apple announcement or a new entry in the iPhone or MacBook specifications.
