TAIPEI (Taiwan News) — China on Wednesday condemned Taiwan’s decision to blacklist major Chinese tech companies, accusing Taipei of erecting “technological blockades” and pledging countermeasures, Bloomberg reported on Wednesday.

Taiwan Affairs Office Spokesperson Zhu Fenglian (朱鳳蓮) at a press briefing warned that Beijing would act with “forceful measures” to protect what it called the normal flow of cross-strait trade. However, she did not detail what moves China might pursue.

Last week, Taiwan aligned with the long-running US effort to limit China’s tech ambitions, adding Huawei and SMIC to its entity list. The move effectively bars Taiwanese companies from working with these firms without a government license, the first such use of Taipei’s blacklist against major Chinese players.

The new controls could restrict Chinese tech companies from accessing materials and advanced chipmaking equipment vital for building next-generation AI processors like those made by TSMC for Nvidia.

Zhu denounced Taiwan’s decision as “despicable” and claimed it revealed President Lai Ching-te’s (賴清德) loyalty to Washington. She argued that efforts to decouple supply chains would ultimately backfire on Taiwan’s industrial competitiveness and damage its economy.

“Attempts to decouple will not delay the progress of industrial upgrading (in China),” Zhu said, insisting that Beijing would press on with efforts to build up its own capabilities despite foreign restrictions.

Bloomberg previously reported that Washington encouraged Taipei to take a stronger stance on blocking China’s chip sector access.