China’s chip shares rallied on Monday morning following Beijing’s announcement to bar some purchases of merchandise from U.S. reminiscence chipmaker Micron.

China’s Our on-line world Administration barred operators of “vital data infrastructure” in China from shopping for merchandise from the U.S. chip big following a safety overview performed by the Our on-line world Administration of China.

Chinese language authorities stated Micron merchandise have failed its community safety overview, and cited “severe potential community safety points.” The agency poses a “main safety danger” to China’s vital data infrastructure provide chain and impacts [its] nationwide safety,” a press release stated.

Shares of Chinese language chipmakers largely rose on Monday following the transfer: Hong Kong-listed Hua Hong Semiconductor rose as a lot as 3.14% on Monday, whereas SMIC rose 2.64%.

Different reminiscence chip producers in mainland China corresponding to GigaDevice Semiconductor and Ingenic semiconductor jumped 3.74% and eight.08% respectively.

In response to Beijing’s announcement, the U.S. Commerce Secretary Gina Raimondo advised the Wall Avenue Journal, “We firmly oppose restrictions that haven’t any foundation the truth is.” The commerce division will have interaction with the Chinese language authorities to “element” its place and search additional readability, he added.

Raimondo stated the U.S. will have interaction with its key allies to deal with Beijing’s actions, and that such measures will trigger “distortions of the reminiscence chip market.”

This comes because the U.S. reportedly urged South Korean chipmakers to not fill the shortfalls in China if Beijing’s ban comes into impact, the Monetary Occasions reported.

Shares of South Korean chipmakers SK Hynix and Samsung Electronics, each Micron rivals, rose on Monday morning.