US-China tech war
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Samsung Electronics’ 8GB double-data-rate (DDR) 4 memory modules are arranged for a photograph in Seoul on July 9, 2019. Photo: Bloomberg

Samsung and SK Hynix could be spared harshest chip export restrictions in US-China tech war

  • The Biden administration is planning to spare the South Korean companies from the brunt of new restrictions with case-by-case reviews of equipment licences
  • The US is only seeking to target Chinese companies, a source told Reuters, but South Korea’s largest chip makers fear bickering with regulators
The Biden administration plans to spare SK Hynix and Samsung from the brunt of new restrictions on memory chip makers in China aimed at thwarting Beijing’s technological ambitions and blocking its military advances, sources said.
The Commerce Department, which plans to release new curbs on exports of technology to China this week, will likely deny requests by US suppliers to send equipment to Chinese firms like Yangtze Memory Technologies Co Ltd (YMTC) and ChangXin Memory Technologies Inc (CXMT) if they are making advanced DRAM or flash memory chips, the sources said.

However, license requests to sell equipment to foreign companies making advanced memory chips in China will be reviewed on a case-by-case basis, sources said, potentially allowing for them to receive the equipment.

“The goal is not to hurt non-indigenous companies,” one of the people briefed on the matter said.

China’s top memory chip maker replaces CEO amid US sanctions risk

The White House and Commerce Department declined to comment. SK Hynix Inc, Samsung Electronics Co Ltd, YMTC, and CXMT did not respond to requests for comment.

The Chinese Embassy in Washington on Thursday described the expected rules as “sci-tech hegemony”. It accused the United States of using its “technological prowess … to hobble and suppress the development of emerging markets and developing countries.”

The move could assuage the worst fears of South Korean memory chip makers that the United States might hobble their China-based manufacturing business in its effort to thwart China’s rise, cripple YMTC and protect vulnerable US memory chip makers.

They still worry, however, that the case-by-case review standard is far from an explicit greenlight for US equipment to be shipped to their Chinese facilities and could result in bickering with regulators over what shipments to approve.

Details of some of the new regulations facing China-based memory chip makers have not been previously reported.

YMTC Introduces 128-layer NAND flash memory on April 13, 2020. Photo: Yangtze Memory Technologies Co Website

The new curbs target China-based producers of DRAM chips, which hold information from applications while the system is in use, and NAND chips, which are used for data and file storage.

US suppliers seeking to ship equipment to China-based semiconductor firms would not have to seek a license from the Commerce Department if selling to firms producing DRAM chips above the 18-nanometre node, NAND Flash chips below 128 layers, or logic chips above 14 nanometres, the sources said.

However, US companies selling sophisticated technology to indigenous Chinese chip makers producing DRAM chips at 18 nanometres or below, NAND flash chips at or above 128 layers or logic chips at or under 14 nanometres would have to apply for a license that would be reviewed with the tough “presumption of denial” standard.

US suppliers seeking to sell the equipment to non-Chinese origin companies operating in China and producing those same types of chips would also face a license requirement but the applications would be reviewed on a case-by-case basis, the sources added.

If published as expected, the rules would mark the first US bid through export controls to target Chinese production of memory chips without specialised military applications, representing a more expansive view of American national security, according to export control experts.

China’s top memory chip maker in the crosshairs of US sanctions

They would also hit YMTC, a rising power in manufacturing NAND chips founded in 2016. Its expansion and low-price offerings represent “a direct threat” to US-based Micron Technology Inc and Western Digital Corp, the White House said in a June 2021 report.

YMTC is already under investigation by the Commerce Department over whether it violated US export controls by selling chips to Chinese telecoms company Huawei Technologies Co Ltd. Its chips are being evaluated by Apple Inc for inclusion in some of its iPhones in China, a major concern for US lawmakers and the Biden administration.

The rules could also hurt CXMT, a state-backed Chinese company that is working to enter the DRAM market.

LAM Research Corp, Applied Materials Inc and KLA Corp, major US vendors of equipment to make chips, are likely to be hit by the restrictions. LAM and Applied Materials did not respond to requests for comment. KLA declined to comment.

South Korea’s Samsung has a facility producing NAND Flash memory chips in China’s Shaanxi Province. South Korean rival SK Hynix has purchased Intel Corp’s NAND flash memory chip manufacturing business in Dalian and produces DRAM chips at another China-based facility.


AI chip maker ordered by US government to halt exports to China

AI chip maker ordered by US government to halt exports to China

According to consulting firm Yole Intelligence’s Walt Coon, 25 per cent of SK Hynix’s and 38 per cent of Samsung’s NAND wafer production is based in China, and about 50 per cent of SK Hynix’s DRAM production is in China.

Reuters first reported that the United States was considering limiting shipments of American chip-making equipment to memory chip makers in China including YMTC, part of a bid to halt China’s semiconductor sector advances and protect US companies.

Reuters also reported last month that the Biden administration planned in October to broaden curbs on US shipments to China of semiconductors used for artificial intelligence and chipmaking tools.