The world’s largest technology trade show, Computex 2026, opened its doors in Taipei on June 2 with more than 1,500 exhibitors from 33 countries and territories. Yet scattered across the exhibition floor, a striking anomaly has drawn attention from attendees and analysts alike: dozens of booths listed in the official catalog remain staffed by no one. The companies listed for those empty spaces share one common trait — they are headquartered in mainland China. According to exhibitor records and multiple anonymous sources who spoke on condition of confidentiality, 219 mainland Chinese enterprises registered for the event have been rendered unable to send a single employee to Taipei, despite having paid for booth space and appearing in the show’s directory.
No Formal Rejection, No Entry
Two separate representatives from mainland Chinese companies registered for Computex 2026 disclosed under anonymity that their teams’ entry permits were never issued. The applications were not formally denied, they said, but either left in a state of indefinite suspension or met with last-minute demands for additional documentation that proved impossible to obtain in time. A third individual, a mainland Chinese national employed by a multinational corporation, reported that colleagues from other regions had already received their travel approvals while his own application remained frozen without explanation.
Two travel agencies specializing in cross-strait movement independently confirmed that none of their clients — including all official exhibitors — had received permits for this year’s show. When contacted for comment, Taiwan’s Immigration Agency responded that it follows established procedures and reviews applications in coordination with relevant authorities.
This pattern of what might be called “rejection-free exclusion” is not unprecedented. The same permit freeze occurred in April at Taipei AMPA, the Taipei International Auto Parts and Accessories Show, where numerous mainland exhibitors were similarly unable to send staff.
How the Permit System Enables Exclusion Without Denial
For a mainland Chinese resident to attend a trade show in Taiwan, approval must be secured from both Beijing and Taipei. Multiple sources emphasized that the current bottleneck lies entirely on the Taipei side; Beijing’s procedures have not been obstructed.
Since 2023, mainland residents have been permitted to apply directly to Taiwan’s Immigration Agency for short-term exhibition visas. However, if the sponsoring organization or the nature of the exhibition involves high-tech fields such as semiconductors, a separate special endorsement is required. Additionally, the number of staff a company may dispatch is capped according to its annual revenue. All of these determinations are discretionary. No formal rejection is ever issued — the application is simply held indefinitely. The result is that a company can pay its exhibition fees, secure its booth, and appear in the catalog, yet be physically incapable of putting anyone on the ground.
There is at least one exception that underscores the selective nature of the process. Emdoor Information, a Shenzhen-based manufacturer of industrial-grade rugged PCs and VR equipment that has exhibited at Computex for more than a decade, confirmed that its permit application encountered no issues.
Computex 2026 in Context: Taiwan’s Accelerating Semiconductor Defense
The Computex 2026 permit freeze cannot be understood in isolation. Since the beginning of 2026, Taiwan has dramatically intensified a multi-layered campaign to protect its semiconductor industry — the economic asset that also functions as what analysts call a “silicon shield” for national security.
Late March 2026 — Talent Poaching Raids
Taiwan’s Ministry of Justice Investigation Bureau raided 11 mainland Chinese companies suspected of illegally poaching Taiwanese semiconductor talent. The bureau has handled more than 100 such cases since 2020.
April 27, 2026 — First Prison Sentence for Core Technology Theft
Taiwan’s Intellectual Property and Commercial Court sentenced a former TSMC engineer to 10 years in prison for illegally obtaining trade secrets related to TSMC’s 2nm process. The recipient company, a Taiwan subsidiary of Tokyo Electron, was fined approximately NT$150 million (roughly ¥7.6 billion). This marked the first criminal conviction under the “National Core Key Technology” provisions of Taiwan’s National Security Act, which was amended in 2022. The sentence was finalized by May 21.
May 21, 2026 — First Semiconductor Smuggling Bust
Taiwan’s Keelung District Prosecutors Office conducted raids at 12 locations and detained three individuals for attempting to smuggle Supermicro servers equipped with NVIDIA AI chips to China via a transshipment route through Japan. The operation involved falsified documentation and represents Taiwan’s first major crackdown on semiconductor smuggling.
June 2, 2026 — Computex 2026 Permit Freeze
Staff from 219 mainland Chinese exhibitors were unable to obtain entry permits. Two travel agencies reported zero permit approvals for all clients.
These enforcement actions run parallel to a deteriorating security environment. Taiwan’s National Security Bureau reported that in the first quarter of 2026 alone, more than 170 million cyber intrusion attempts targeted government networks, over 420 Chinese military aircraft operated near Taiwan, and 10 integrated combat readiness patrols were conducted. Meanwhile, Taiwan’s Ministry of the Interior recorded 58,708 mainland Chinese visitor arrivals in Q1 2026, a 13 percent decline year-over-year.
Empty Booths, Full Meaning
At Computex 2026, NVIDIA, Intel, and AMD are delivering keynote addresses to packed halls of global buyers, while a parallel exhibition of empty booths quietly tells another story. The contrast captures the current state of cross-strait technology relations with stark clarity.
For Taiwan, semiconductor technology is both an economic asset and a security shield. Protecting that shield means closing off every conceivable leakage channel — investigating talent poaching, dismantling smuggling routes, securing criminal convictions for trade secret theft, and, where necessary, freezing the permit pipeline for trade show participation. Each measure operates through a different mechanism, but all trace the same line.
Because the exhibitors’ names remain on the official roster, Taiwanese authorities will continue to insist that this is not a ban. And technically, it is not — no formal rejection letter exists. But when no permit is ever granted, the practical outcome is indistinguishable. The decoupling of the technology industries on both sides of the Taiwan Strait is proceeding not only through export controls and tariffs but also through the quiet, discretionary machinery of permit approval — booth by empty booth.
