Stepping up a feud with Washington over technology and security, China's government on Sunday told users of computer equipment deemed sensitive to stop buying products from the biggest U.S. memory chipmaker, Micron Technology Inc.

Micron products have unspecified “serious network security risks” that pose hazards to China’s information infrastructure and affect national security, the Cyberspace Administration of China said on its website. Its six-sentence statement gave no details.

“Operators of critical information infrastructure in China should stop purchasing products from Micron Co.,” the agency said.

The United States, Europe and Japan are reducing Chinese access to advanced chipmaking and other technology they say might be used in weapons at a time when President Xi Jinping's government has threatened to attack Taiwan and is increasingly assertive toward Japan and other neighbors.

Chinese officials have warned of unspecified consequences but appear to be struggling to find ways to retaliate without hurting China’s smartphone producers and other industries and efforts to develop its own processor chip suppliers.

An official review of Micron under China’s increasingly stringent information security laws was announced April 4, hours after Japan joined Washington in imposing restrictions on Chinese access to technology to make processor chips on security grounds.

Foreign companies have been rattled by police raids on two consulting firms, Bain & Co. and Capvision, and a due diligence firm, Mintz Group. Chinese authorities have declined to explain the raids but said foreign companies are obliged to obey the law.

Business groups and the U.S. government have appealed to authorities to explain newly expanded legal restrictions on information and how they will be enforced.

Sunday's announcement appeared to try to reassure foreign companies.

“China firmly promotes high-level opening up to the outside world and, as long as it complies with Chinese laws and regulations, welcomes enterprises and various platform products and services from various countries to enter the Chinese market,” the cyberspace agency said.

Xi accused Washington in March of trying to block China’s development. He called on the public to “dare to fight.”

Despite that, Beijing has been slow to retaliate, possibly to avoid disrupting Chinese industries that assemble most of the world’s smartphones, tablet computers and other consumer electronics. They import more than $300 billion worth of foreign chips every year.

Beijing is pouring billions of dollars into trying to accelerate chip development and reduce the need for foreign technology. Chinese foundries can supply low-end chips used in autos and home appliances but can’t support smartphones, artificial intelligence and other advanced applications.

The conflict has prompted warnings the world might decouple, or split into separate spheres with incompatible technology standards that mean computers, smartphones and other products from one region wouldn’t work in others. That would raise costs and might slow innovation.

U.S.-Chinese relations are at their lowest level in decades due to disputes over security, Beijing’s treatment of Hong Kong and Muslim ethnic minorities, territorial disputes and China’s multibillion-dollar trade surpluses.

Share:
More In Business
Ford Cuts Production of F-150 Lightning Electric Truck
Ford says it’s reducing production of the F-150 Lightning electric pickup vehicle as it adjusts to weaker-than-expected electric vehicle sales growth. The automaker said about 1,400 workers will be impacted by the move.
Apple Overtakes Samsung as Top Seller of Smartphones
Dan Ives, Managing Director and Senior Equity Analyst at Wedbush Securities dives deeper into a report by the International Data Corporation (IDC) that Apple has ended Samsung's 12-year reign as the world's largest smartphone seller.
AI is the Big Opportunity and the Risk to Watch at Davos
Artificial intelligence is the biggest buzzword at the World Economic Forum’s annual meeting in Davos. Advances in generative AI stunned the world last year, and the elite crowd is angling to take advantage of its promise and minimize its risks.
A Smarter Smart Phone?
Smartphones could get much smarter this year as the next wave of artificial intelligence seeps into the devices that accompany people almost everywhere they go.
Load More