We develop and operate Korea's only high-grade quartz (silica stone) mine ourselves, carrying out exploration, mining and primary processing in-house to produce top-quality high-grade quartz.
A dedicated quality-control system at every stage, from raw-material selection to finished products, meets our customers' expectations.
Jangsu Baegam Mine (BAR)
Located in Jinan-gun, Jeollabuk-do, it is currently Korea's only high-grade quartz mine, guaranteeing consistent purity of at least 99.5%.
SDR Quartz · Global Partnership
SDR Quartz in Jiangsu, China holds ISO 9001 and ISO 14001 certification and produces all four process stages in-house: quartz melting, raw-stone sorting, crushing and fine-powder processing.