Fused Silica & Semiconductor Crucibles
Premium ROM streaks suitable for downstream HPQ beneficiation.
What this sector punishes.
Poly-Si pulling crucibles need very high purity and very low fluid inclusions. ROM quartz cannot reach that directly — buyers running their own beneficiation line evaluate the source rock first to decide whether the upgrade path is economical.
Where our quartz earns the order.
Hydrothermal origin geology
The vein system itself is the right starting material — crystalline, dense, low-inclusion — for a beneficiation customer who controls their own purification line.
Premium streaks, transparently graded
We sort and label the cleanest hand-picked streaks separately from bulk ROM, with full XRF traceability.
Honest about scope
Lorh La Seng ships ROM. Downstream HPQ refining is the customer’s domain — we deliver suitable feedstock, not finished electronic-grade material.
Best fit HPQ refiners and crucible manufacturers evaluating new ROM-grade vein-quartz feedstock for their own beneficiation pipeline.
Industry Brochures
A single self-contained PDF: company at a glance, sector-specific positioning, technical fit table, target customers, and contact. Need a tailored packet for an RFQ? Use the contact form below.
Fused Silica & Crucibles — Industry Brochure
99.2–99.5% SiO₂
Selectively-mined ROM verified by QUATEST 2 (TCVN 6927:2001 ICP). Fe₂O₃ 47–300 ppm. Yongsen Silicon ICP-MS post-grinding ~10 ppm total trace.
120k → 620k MT/yr
Mine 1 active today; Mine 2 online from 2027. Two licensed deposits, single operator, single geology.
85 km to Cua Lo
ATIGA 0% duty into ASEAN. Direct truck haul, bulk vessel to China, Japan, Korea, Malaysia, Taiwan.
Where we’re actively engaging.
Send us your spec for Fused Silica & Semiconductor Crucibles.
Target chemistry, lump size, tonnage, destination port. We respond within one business day with a representative ROM sample plan.