CSSC Special Gas, a pivotal subsidiary of China State Shipbuilding Corporation, has officially refuted viral rumors regarding a landmark long-term supply agreement with Taiwan Semiconductor Manufacturing Company (TSMC). The speculation, which spread rapidly across Chinese investment platforms, suggested that the company had secured a three-year contract for tungsten hexafluoride (WF6) at a premium price of 1,300 RMB per kilogram. Such a deal would have represented a tectonic shift in the semiconductor materials landscape, implying that the Chinese supplier’s share in TSMC’s supply chain had surged from a modest 10% to a dominant 70%.
In a clarifying statement released on its interactive investor platform, CSSC Special Gas—often referred to as Peric Special Gas—noted that while negotiations with various clients regarding future supply frameworks are indeed ongoing, the specific details circulating online are unequivocally false. The company emphasized that the rumored pricing does not align with its current market value assessments or the broader competitive landscape. By directing investors to official regulatory filings on the Shanghai Stock Exchange, the firm sought to dampen the speculative fervor that has recently characterized China’s domestic semiconductor sector.
Tungsten hexafluoride is a critical precursor gas used in the chemical vapor deposition (CVD) process to create conductive interconnects in advanced logic and memory chips. As the semiconductor industry moves toward smaller nodes and more complex 3D architectures, the demand for ultra-high-purity electronic gases (ESGs) has become a strategic bottleneck. For a Chinese company to capture 70% of a critical material’s share at the world’s leading foundry would have signaled a major breakthrough in Beijing’s quest to decouple its high-tech supply chain from Western-aligned dependencies.
The debunking of this rumor highlights the intense pressure and high expectations currently placed on China’s ‘Little Giant’ firms—specialized enterprises that are seen as the front line in the ongoing tech rivalry with the United States. While the denial suggests that a domestic monopoly over TSMC’s gas supply remains out of reach for now, the fact that CSSC Special Gas remains in active negotiations with the Taiwanese giant underscores the creeping integration of mainland materials into global high-end fabrication processes, even amidst heightened geopolitical tensions.