Innovation Philosophy

Building ESSN: Driving High-Quality Development with High Technology

Innovation is the primary driver of ESSN's growth. Responding to the core demands of quartz materials — high purity, high stability and high consistency — the company follows a three-pronged approach of "resources + technology + applications" and has built an innovation system covering the entire quartz value chain, focusing on four key directions. First, high-purity quartz sand: continuously pushing the limits of purity through proprietary purification processes and achieving commercial mass production across multiple grades from 4N to 6N. Second, photovoltaic quartz: developing low-impurity, long-life inner-layer sand for quartz crucibles and related consumables in step with the evolution of large-size wafers and N-type cell technologies. Third, semiconductor quartz: targeting ppb-level metal impurity control to supply ultra-high-purity quartz materials and products for wafer fabrication. Fourth, electronic fabric quartz materials: connecting the "quartz sand — quartz rod — quartz fiber" technology chain and developing low-dielectric, low-loss quartz fibers for electronic fabric. Leveraging its two platforms — the Quartz Materials Research Institute and the Quartz Application Technology Research Center — ESSN promotes full-chain collaboration from basic research and process development to application validation and industrialization. Through sustained innovation, it fills industry gaps and breaks foreign monopolies, providing independently controllable quartz material solutions for the photovoltaic, semiconductor and next-generation information technology industries.

2 Major R&D centers — Quartz Materials Research Institute and Quartz Application Technology Research Center

4 Major R&D directions — high-purity quartz sand, photovoltaic quartz, semiconductor quartz and electronic fabric quartz materials

10+ Years of technical expertise in high-purity quartz sand

20+ R&D and engineering staff

30+ Independent patents and core technological achievements

6N Highest product purity grade (SiO₂ ≥ 99.9999%)

• Process & Equipment Innovation
• Product Standard Innovation
• Smart Factory Innovation