This production technology has been patented abroad since the early 1980s. In the early 1990s, my country began to introduce and use spherical silica powder.
At present, the main countries that can produce this kind of high-purity spherical silica powder material are Japan and the United States. There are currently six companies in Japan that produce spherical silica powder and are the main exporters of spherical silica powder. Admatechs, Micron , Denka, Tatsumori, Tokai..., American family, C-E, Korean family Kosem.
Japan and South Korea are resource-poor countries, so most of their raw materials and energy need to be imported, such as quartz, natural gas, etc. Japan's quartz raw materials mainly come from India, China, and Sri Lanka. South Korea's quartz raw materials mainly come from India and China. The quartz raw material in Japan is mainly crystalline quartz, and the quartz raw material in Korea is mainly fused quartz.