China's quartz stone (sand) industry has transitioned from primary processing to high-purity refining and functional customization, driven by the growing demand for purity, particle size control, and functional properties in downstream industries. In the 1980s and 1990s, relying on high-quality quartz resources in Donghai (Jiangsu), Fengyang (Anhui), Lingshou (Hebei), and other regions, the industry focused on mining and simple crushing/sieving. Products were mostly ordinary quartz sand, mainly used in basic fields such as construction aggregates, common glass, and foundry sand, characterized by high impurity content (iron, aluminum, calcium), uneven particle size distribution, and limited added value.

Since the turn of the century, the rise of the photovoltaic industry, upgrades in high-end building materials, and the expansion of the electronics industry, along with stricter environmental policies, have driven the industry's transformation toward purification, precise classification, and surface modification. High purity is achieved through combined processes like magnetic separation, flotation, and acid leaching. Precise particle size control (size deviation ≤ 5 μm) is achieved using advanced classification technologies. These advancements have led to the development of photovoltaic-grade quartz sand, slab-grade quartz stone, and electronic-grade quartz powder, enabling breakthroughs in photovoltaic wafer slicing, high-end quartz countertops, and semiconductor packaging.

In recent years, high-end demands from new energy (separator supports for lithium batteries, cathode material fillers), semiconductors (raw material for quartz crucibles), and aerospace (high-temperature resistant components) have surged. Coupled with evolving standards, the industry is accelerating its upgrade toward efficient resource utilization and high-end product specialization. Today, China is the world's largest producer and consumer of quartz stone (sand), with products covering ordinary quartz sand, high-purity quartz sand, quartz stone slabs, and quartz powder. These are widely used in dozens of fields, including photovoltaics, building materials, electronics, new energy, and semiconductors.

We have set up a dedicated quartz stone (sand) testing team. Based on product type and application scenario (photovoltaic slicing, high-end slabs, semiconductor auxiliary materials, lithium battery supports), we provide customized testing services—including purity analysis (SiO₂ content), particle size distribution measurement, impurity screening (iron, aluminum, titanium, boron), high-temperature resistance, and abrasion resistance—helping products build advantages in performance optimization and regulatory compliance.