Shares of SMIC, China’s biggest contract chipmaker, plunged more than 20 percent on the Hong Kong Stock Exchange on Sept. 7, after the Pentagon said it was considering an export ban on the Chinese company.
Shares tumbled almost 23 percent to HK$18.24 ($2.35), wiping about HK$28 billion (about $3.6 billion) off its market value. SMIC’s shares listed on the Shanghai Stock Exchange fell about 11 percent, closing at 58.8 yuan ($8.61) per share.
“Such an action would ensure that all exports to SMIC would undergo a more comprehensive review,” Gough said.
A ban on SMIC would likely affect China’s tech ambitions.
China’s Ministry of Foreign Affairs spokesperson Zhao Lijian, at a daily briefing on Sept. 7, accused the United States of “abusing its power” to impose restrictions on Chinese companies, when asked about the possible U.S. ban on SMIC.
A day earlier, China’s hawkish state-run media Global Times cited a Chinese telecom analyst who said the ban would “deal some blows to the company as well as China’s semiconductor industry.”
An export ban would affect whether SMIC could purchase key chipmaking equipment from U.S. companies such as Applied Materials, Lam Research, and KLA. The ban could also impact Chinese tech giant Huawei, one of SMIC’s customers.
SMIC is technologically several generations behind TSMC and has a small market share.
SMIC is the fifth-largest contract chipmaker in the world, with a market share of almost 5 percent as of the second quarter of this year, lagging TSMC’s almost 54 percent, according to data from Taiwan-based research firm Topology Research Institute.
If SMIC is blacklisted by the U.S. government, TSMC’s technological lead over SMIC would only widen further, Taiwan’s government-run Central News Agency reported, citing a local analyst.
Any export ban against SMIC would benefit both TSMC and South Korean chipmaker Samsung Electronics, Doh Hyun-woo, an analyst with South Korean securities firm NH Investment & Securities, wrote in an article published Sept. 7 on the Business Korea news portal.
Doh said that it would become “all but impossible” for SMIC to secure equipment from U.S. semiconductor equipment companies. In the long term, Doh added that Chinese semiconductor companies, including SMIC, would likely face delays in securing technology to manufacture advanced chips.