How we trace a supplier's owners

Updated 2026-10-04

The directory answers one question for each of its 25 suppliers: is it, or could it be, a prohibited foreign entity? This page explains how: where the facts come from, how shares are added up, and what the method cannot see yet.

Every link has a source

Each fact in the directory is one sourced statement, such as "Company A owns 22.45% of Company B", with the document it came from and the exact words quoted. The sources, in order of preference:

Facts are added through reviewed changes, so the history shows who added what and when. A fact that stops being true is given an end date rather than deleted, so an old screening can still be reproduced.

Shares multiply up a chain

Ownership is followed upward from the supplier, one owner at a time, until it reaches a person, a government or a company with no recorded owners. Along each chain the shares multiply, the same way the tax law attributes ownership through companies:

A provincial government owns 60% of a holding company, which owns 40% of a cell maker.
The government's effective share of the cell maker is 60% × 40% = 24%.

When one owner reaches the supplier along more than one chain, the chains are added together.

Which owners count

An owner is covered if it is on a restricted list, or if it is organized in, or a national of, a covered nation (CN, RU, IR, KP). Then the supplier is flagged if:

FindingThreshold
It is organized in a covered nation, or is on a restricted list itselfany
One covered owner's effective share, counting every chain25% or more
All covered owners together40% or more
Share of its debt held by covered entities15% or more
A covered person or company is its chair or a senior officer, controls its board or a key license, or consolidates it in its accountsany

For the combined test, each chain is counted once, at its nearest covered owner. If a covered holding company owns 30% of a supplier and is itself owned by a covered government, the 30% is counted once, not twice.

Three outcomes

Open questions you can switch

Some readings of the law are not settled. Each supplier page lets you answer these yes or no and see the result change. They start at yes, the stricter reading.

Does a Hong Kong person or company count as China?
Hong Kong is part of the PRC, but some US rules treat it separately. Applies to entities recorded with country HK, such as CATL's chairman Zeng Yuqun.
Is a "domestic natural person" in an A-share report a Chinese national?
Chinese annual reports class shareholders as 境内自然人 (domestic natural person) without stating nationality. These people are recorded as CN and tagged domestic-natural-person.
Does a China-organized subsidiary of a non-Chinese company count?
For example, Volkswagen (China) Investment, which holds 24.29% of Gotion. Such entities are recorded as CN and tagged foreign-parent.

What the method cannot see yet

Each supplier page lists the evidence behind every finding, so any reader can check the source and the arithmetic.

Sources

  1. 26 U.S.C. 7701(a)(51), including (H) on determining ownership through section 318(a)(2) (Cornell LII).
  2. GLEIF Level 2 data: who owns whom.
  3. CNINFO and HKEXnews, company filings for Shenzhen-, Shanghai- and Hong Kong-listed companies.