CAS Xiongji Project Test Suspected of Using Chinese Filters, Supply Chain Security in Focus

The National Chung-Shan Institute of Science and Technology (NCSIST) has recently been developing an air-launched version of the Hsiung Feng III missile under the project codename "Xiongzhi." During the process, it was reported that a communication filter used for testing was suspected to originate from Mainland China. This information was initially exposed by the media, sparking public concern over the security of the defense critical component supply chain. Since the 1990s, the Hsiung Feng III missile has served as a core air and naval defense weapon for Taiwan, and its air-launched variant is a key technology for enhancing the long-range interception capabilities of fighter jets. In response to cross-strait military tensions, related research and upgrade programs have always been subject to a high degree of confidentiality and strict reviews. Any doubts involving Mainland-made products could potentially impact overall defense effectiveness and trust in the defense-autonomy industry.

In response, NCSIST immediately initiated an internal verification mechanism, conducting random sampling inspections on the filter connectors used during the testing phase. The institute explained that inspection results indicated the connectors were suspected to be Mainland-made. Consequently, it immediately notified the supplier to report to the institute for clarification and requested the provision of complete place-of-origin and manufacturing certification documents. This action not only serves to rule out the potential mixing of Mainland-made parts, but also demonstrates the vigilance and rigor of the Ministry of National Defense and the research institution in supply chain management. NCSIST emphasized that the related components are still in the testing stage and have not yet undergone joint testing with communication equipment or aircraft, nor have they been officially incorporated into mass production or assembly processes.

From an institutional perspective, the Ministry of National Defense has since 2020 strengthened source inspections for military procurement and R&D components, requiring all parts involved in critical systems to possess "domestic" or "trusted" certification. Behind this policy is a risk assessment of cross-strait military competition and the consideration of preventing operational capabilities from being affected by supply chain disruptions. Over the past few years, Taiwan has also promoted "localization" initiatives, encouraging local enterprises to participate in the defense industry to reduce reliance on external supply chains. If this incident is confirmed to involve Mainland-made products, it could prompt further tightening of relevant regulations and accelerate the research, development, and mass production of domestic substitute parts.

On the other hand, responses from the private and academic sectors to this incident cannot be overlooked. Some defense observers pointed out that although components in the testing stage have not yet been officially deployed into combat systems, any potential security vulnerability could be exploited by adversaries, thereby creating a breakthrough for intelligence or electronic warfare. Conversely, voices have also reminded that if excessive concerns and reviews are not aligned with industrial practices, they could hinder research and development progress and even impact the pace of defense technology innovation. Therefore, how to strike a balance between security and efficiency has become a challenge that future policymakers must face.

In summary, NCSIST's prompt verification and proactive convening of a briefing following the emergence of these doubts demonstrated a high level of responsibility toward defense security. If it can be confirmed in the future that all critical components originate from domestic or trusted sources, it will help stabilize the foundation of trust in defense R&D; if doubts remain, the supply chain audit mechanism must be further strengthened to prevent similar situations from recurring. This matter concerns not only the development of a single missile system, but also affects the broader context of overall defense autonomy and cross-strait security. (Source of facts: Central News Agency)