China Is Set to End One of Its Last US Dependencies Thanks To 35 Million Tons of High-Purity Quartz Deposit

A significant discovery of 35 million metric tons of high-purity quartz (HPQ) has been made in China’s Qinling region of Henan and the Altay region of Xinjiang, with an estimated value of €1.4 billion. Recognized as China’s 174th strategic mineral, HPQ contains silicon dioxide at a purity of 99.995% or higher, underscoring its critical role in emerging high-tech industries.

HPQ is essential for producing semiconductor-grade silicon wafers, photovoltaic cells, and precision optics, thanks to its exceptional purity, thermal resistance, and dielectric properties. Until now, China has relied on the United States for over 80% of its HPQ supply, importing more than $1.5 billion worth annually. This new domestic discovery could significantly reduce China’s dependence on foreign sources.

Given its strategic value, HPQ has been officially classified as a new mineral species by Chinese authorities. Mao Jingwen of the Chinese Academy of Engineering noted that this designation will support the high-quality growth of strategic emerging industries. China has already launched pilot manufacturing programs producing HPQ materials at 4N5 (99.995%) and 4N8 (99.998%) purity levels—standards suitable for monocrystalline silicon crucibles used in chip and solar panel production.

This breakthrough is poised to reshape global HPQ markets and strengthen China’s position in semiconductor and solar technology sectors. The government plans to establish a national innovation center dedicated to HPQ, bringing together experts in geology, material science, and processing technologies.

In addition, a nationwide survey is being planned to determine the country’s total HPQ reserves. This development is expected to enhance China’s supply chain resilience, accelerate technological advancement, and reduce foreign reliance in critical industries.