Apple is reportedly concerned about its over-reliance on Japan for [iPhone](https://appleinsider.com/inside/iPhone) flash memory, and is exploring working with a Chinese supplier.

![](https://photos5.appleinsider.com/gallery/47716-93226-000-lead-iPhone-xl.jpg)Apple's key flash memory supplier Kioxia had to limit production in February 2022, when raw materials were [found to be contaminated](https://appleinsider.com/articles/22/02/10/factory-contamination-ruins-65-million-terabytes-of-flash-storage-prices-may-rise). There were no details of the contamination, but between Kioxia and another supplier, Western Digital, it was estimated that the issue led to a drop in production of 6.5 exabytes (65 million terabytes) of storage.Now according to _Bloomberg_, Apple is [looking to mitigate](https://www.bloomberg.com/news/articles/2022-03-31/apple-said-to-weigh-more-memory-chip-suppliers-including-china?srnd=technology-vp) future risks by adding alternative suppliers. Unspecified sources say that Apple already uses Micron Technology and Samsung, but is testing working with Chinese state-owned Yangtze Memory Technologies.