Changxin Storage · Full chronicle and history

According to an exclusive Reuters report on October 28, ChangXin Memory Technologies (CXMT), China's largest DRAM manufacturer, plans to start limited production of HBM3E high-bandwidth memory chips within the next two months. The yield is only about 20%-30%, far lower than the approximately 70% level of SK Hynix, reflecting the shortage dilemma in China's AI chip industry. Huawei, Cambricon, and others have already raised prices by 20% to 50% due to rising storage costs.

The U.S. account @ChinaSelect pointed out that CXMT (ChangXin Memory Technologies), identified by the Pentagon as a Chinese military-industrial enterprise, relies on CCP subsidies and advanced Western chip manufacturing equipment to maintain its competitiveness. The account called on the U.S. Congress to pass the MATCH Act, which aims to ban the sale of advanced chip manufacturing equipment to Chinese military-industrial enterprises such as CXMT, in order to curb their technological development and protect the market competitiveness of U.S. and allied companies.

On August 17, 2026, Bloomberg reported that driven by Chinese domestic tech companies accelerating purchases of domestically produced replacement chips, China's DRAM leader CXMT (ChangXin Memory Technologies) turned profitable after long-term losses and rose to become the world's fourth-largest memory maker.

On August 18, 2026, a former Samsung engineer testified at the Seoul District Court that China's ChangXin Memory Technologies (CXMT), in the early period after its founding in 2016, obtained Samsung's 18-nanometer DRAM process data by recruiting South Korean engineers, and South Korean prosecutors alleged that it thereby saved on R&D trial and error.

On August 9, 2026, US media reported that Apple has tested memory chips from China's ChangXin Memory Technologies (CXMT) on iPhones and MacBooks, and has held preliminary negotiations with CXMT on procurement, planning to use them in some devices sold in China while seeking the White House's approval.

On July 27, 2026, CXMT, China's largest memory chip manufacturer, was listed on the Shanghai Stock Exchange, raising 57.9 billion yuan in its IPO, the largest IPO in China in over 15 years.

Reuters reported on June 17, 2026 that, out of consideration for avoiding escalating U.S.-China relations, the U.S. government has delayed formally adding more than 100 Chinese entities — including AI company DeepSeek and chipmaker ChangXin Memory Technologies — that had already received interagency approval to the export control Entity List.

In April 2026, a South Korean court found a former Samsung researcher guilty of leaking semiconductor technology to China's ChangXin Memory Technologies in violation of the Industrial Technology Protection Act, and sentenced him to seven years in prison.

An investigation by South Korean prosecutors found that ChangXin Memory Technologies (CXMT) drew up the "Hefei Plan" in early 2016, targeting Samsung's DRAM processes and talent; a former Samsung employee who jumped ship in 2016 was accused of providing large amounts of handwritten materials on DRAM technology.