Zibo Yufeng Industrial Co., Ltd. was formerly Shuanggou Coal Mine under the state-owned Zibo Mining Bureau. The mine was constructed and put into operation in 1975, restructured into an independent legal entity in 2000, and ceased coal mining operations in 2012.
Today, the company operates three core business segments: crystal-based optoelectronic components, coal production and trading, and building materials.
Zibo Yufeng Industrial Co., Ltd. is now mainly engaged in three major industries: crystal optical electronic devices, coal production and operation and building materials. Among them, two subsidiaries are crystal optical electronic device manufacturers: Zibo Sichuan North Crystal Material Factory and Shandong Yufeng Weichuang Electronics Co., Ltd., with a whole industrial chain from crystal materials to electronic components.
