PowerPhotonic Ltd United Kingdom beam shaping, freeform optics, fused silica, laser micromachining, micro-optics, and photonics
GELINDE Optical Co., Ltd. China ball lenses, ceramic balls, fused silica, glass balls, precision grinding, and spherical lapping
Donghai Jiurui Quartz Products Co., Ltd. China fused silica, precision grinding, quartz glass, quartz tube, thermal glass forming, and wafer carrier
Jiangsu Pacific Quartz Co., Ltd. China double-sided polishing, fused silica, precision grinding, quartz glass, quartz tubes, and semiconductor quartz
