Had Samsung known SK Hynix was about to commit a similar chunk of supply — or vice-versa — the pricing and terms would have likely been different. It’s entirely conceivable they wouldn’t have both agreed to supply such a substantial part of global supply if they had known more...but at the end of the day - OpenAI did succeed in keeping the circles tight, locking down the NDAs, and leveraging the fact that these companies assumed the other wasn’t giving up this much wafer volume simultaneously…in order to make a surgical strike on the global RAM supply chain..
The Chinese government directed CXMT to convert production from DDR4 to DDR5 as soon as the company was able. The order was said to have been given in the 4th quarter of 2024, and the price transition changed from a decrease to an increase in the middle of March 2025.. A wholesale conversion from DDR4 to DDR5 would probably be very expensive to perform, and would thus be unusual for a company that was focused on profitability. As a government-owned company, CXMT does not need to consistently turn a profit, and this was a factor in the government’s decision to suddenly switch from DDR4 to DDR5.
https://news.ycombinator.com/item?id=46143535
https://thememoryguy.com/some-clarity-on-2025s-ddr4-price-su...