Section 1502 doesn't just apply to the SEC-reporting company at the top of the chain — it pushes due diligence questionnaires down through every tier of supplier that touches tin, tantalum, tungsten, or gold. What the rule requires, and why smaller manufacturers get pulled in anyway.
A manufacturer that never directly imports raw tantalum or tungsten
can still get pulled into conflict minerals reporting — because the
obligation follows the customer relationship, not just direct sourcing.
If a downstream customer files with the SEC, that requirement can
cascade down through several supplier tiers.
Section 1502 of the Dodd-Frank Act, enacted in 2010, requires
companies that file reports with the SEC under the Securities Exchange
Act to disclose whether their products contain “conflict minerals”
necessary to the functionality or production of those products, and to
trace the origin of those minerals through their supply chain. The law
was written to address resource-fueled conflict in the Democratic
Republic of Congo and surrounding region.
| Mineral | Common manufacturing use |
|---|---|
| Tin | Solder and electronics assembly |
| Tantalum | Capacitors, especially in electronics |
| Tungsten | Metalworking tools and electronics |
| Gold | Electronics, jewelry, dental applications |
These four minerals are commonly referred to together as “3TG” —
shorthand that shows up constantly in supplier questionnaires and
compliance documentation once a company gets pulled into this
reporting chain.
Companies subject to the requirement start with a “reasonable
country of origin inquiry” using available supply chain information.
If that inquiry can’t determine the minerals’ origin or whether they
financed conflict, the company has to move to independent third-party
supply chain audits, conducted against Comptroller General standards.
Reports filed with the SEC classify products as “DRC Conflict Free,”
“Not DRC Conflict Free,” or, temporarily, “DRC Conflict Undeterminable”
while the investigation continues.
The SEC-filing obligation applies directly only to public companies,
but a public company can’t complete its own due diligence without
tracing minerals back through its supply chain — which means it pushes
a supplier questionnaire down to its Tier 1 suppliers, who often push
the same questionnaire further down to their own suppliers. A small
South Carolina manufacturer with no direct SEC obligation can still
receive one of these questionnaires simply because a customer several
tiers up the chain needs the data to complete its own filing.
Conflict minerals compliance itself isn’t a standalone course in
SCMEP’s current catalog — it connects to our
Supply Chain and
Sustainability training. As a NIST Manufacturing
Extension Partnership affiliate serving South Carolina manufacturers
since 1989, our focus is helping suppliers understand what’s
actually being asked of them when a customer questionnaire arrives,
and why.
If your company has received a conflict minerals questionnaire from
a customer, you can browse the
Supply Chain and Sustainability training catalog or email
the training
team.
Conflict minerals due diligence is one of several supply-chain disclosure obligations manufacturers encounter. See our related guide on RoHS and REACH compliance for a similar downstream chemical compliance requirement handled by the same purchasing and quality teams.
It requires SEC-filing companies to disclose whether their products contain certain conflict minerals and to trace those minerals’ origin through their supply chain, addressing resource-fueled conflict in the Democratic Republic of Congo region.
Tin, tantalum, tungsten, and gold — commonly used in electronics, solder, capacitors, and metalworking tools, and referred to together as 3TG in compliance documentation.
The direct filing obligation applies only to public companies, but the requirement cascades down through supplier questionnaires. A smaller manufacturer with no direct SEC obligation can still receive a questionnaire from a customer several tiers up the supply chain.
Companies first conduct a reasonable country-of-origin inquiry using available supply chain information. If that can’t determine the minerals’ origin, they proceed to independent third-party supply chain audits against Comptroller General standards.
