# RF materials

Chinese Materials Firm Says Its Low‑Dielectric Glass Fiber Is Being Used in High‑End 5G Phones and RF Parts

International Composite Materials told investors that its domestically developed low‑dielectric glass fibre for 5G has found use in high‑end phones and wave‑transparent parts for high‑frequency communications. The product, part of the firm's electronic cloth range used in PCBs, underscores China's push to domesticate advanced materials for RF hardware, though the company did not disclose scale or customer names.