Tin, tantalum, tungsten, gold — and a paper trail.

WINSYTSEM does not operate mines. We assemble electronics. That still makes us responsible for asking where certain metals in those electronics are reported to originate, and for declining theater in place of due diligence.

Our practice: collect supplier declarations on a schedule, map them to the BOMs we actually ship, and flag gaps instead of papering over them. If a program requires a specific template, send it with the SKU list. We will not sign a statement that is broader than the evidence in the file.

This page is a policy sketch, not a legal opinion and not a warranty that every atom on every date code is known. It is a commitment to process: inquire, record, update, and tell you when the record is incomplete.

Requests: hello@winsytsem.org with “minerals” in the subject and the revisions you care about.