Verdex

Tosoh Quartz Corporation

Passed

Makes quartz crucibles · Tokyo, Japan

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Where it sits

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Not a part of the solar module; a step on its chain

The Solar PV chain, raw material to product

  1. Quartz & Silica Mining
  2. Quartz Crucibles
  3. Ingot Growth & Wafer Cutting
  4. Solar Cell Fabrication
  5. Module Assembly

Also on the Semiconductors chain (Quartz Crucibles).

Others making quartz crucibles: Ferrotec Holdings Corporation, JSQ Co. Ltd. (Japan Super Quartz), Shin-Etsu Quartz Products Co. Ltd. (SQP), AdValue Technology LLC, Aobo Quartz, Asin Optical Materials Co. Ltd., Changzhou Yuneng Quartz Technology Co. Ltd., Dahe Thermo-Magnetics Co. Ltd. and 37 more.

On record

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Parent
Tosoh Corporation
Ownership
Subsidiary of public parent
Headquarters
Tokyo, Japan
Production
  • Yamagata (Yonezawa), Japan
  • Toyama, Japan
Products
Quartz Crucible Manufacturing| Synthetic quartz glass/ingots and crucibles for semiconductor use
Company registries
unresolved
Government lists
None matched
Research findings
Not needed; registry data decided it

Checks

  • Passed

    Not based in a country of concern and on no US government list. FEOC · About FEOC

    Screen this supplier
  • Needs review

    Too little confirmed ownership data to clear it under the CHIPS rules: a gap in the data, not a finding against it. CHIPS and export controls · About CHIPS

    CH-OPAQUE · Screening data-quality rule (no statutory basis; a data gap, not a verdict)

Automated results from registry sources, read by fixed rules, with research findings where the registries stop: advisory, not legal advice. The full report, every test with its sources, is on request. Contact us