How to Research Foreign Suppliers Without Confusing Companies and Securities
August 2, 2026
Altsets
Research by Altsets Research
Separate economic company identity from exchange-specific securities so foreign supplier relationships survive dual listings, depositary receipts, share classes, ticker differences, and delistings.
Data used:Altsets Supply Chain Intelligence: 90k+ entities, 400k+ relationships, 20+ years of history.
Key findings
- The supplied Tesla network includes foreign counterparties whose securities require different market mappings, including Samsung Electronics 005930 on KRX, LG Energy Solution 373220 on KRX, and Lens Technology with Shenzhen A shares and Hong Kong H shares.
- Toyota Industries was delisted on June 1, 2026, demonstrating why the supply-chain relationship should be attached to a durable company entity rather than deleted when one tradable security disappears.
Research a foreign supplier by resolving the economic company first, then mapping its current securities, exchanges, share classes, depositary receipts, and listing status separately. A supply-chain relationship belongs to a company, while an investment belongs to a particular security, and the two are not always one-to-one.
Samsung Electronics shows one company can have several securities
The supplied network contains a structural Samsung Electronics to Tesla relationship. Samsung's investor-relations materials show that Samsung Electronics common shares trade on the Korea Exchange under 005930. Preferred shares trade under 005935.
Samsung also has global depositary receipts listed in London. Those securities relate to the same corporate group but are not interchangeable identifiers. A relationship dataset should map the economic company first. A market-data system then maps that company to the relevant security.
LG Energy Solution is a different Korean listed company
The Tesla network also contains a quantified relationship involving LG Energy Solution.
For this article, the important point is not the concentration analysis already covered elsewhere. It is that the economic counterparty in the relationship resolves to LG Energy Solution Ltd., while the investable Korean security is listed under KRX: 373220.
That company-to-security mapping has to remain separate from the relationship metrics themselves. The fact that LG Energy Solution and Samsung Electronics are both Korean companies does not make their numeric identifiers comparable outside the exchange context. A bare number without the exchange can be ambiguous.
Lens Technology demonstrates dual listings
The supplied Tesla network contains a structural Lens Technology relationship. Lens Technology's public filings identify:
- A shares listed on the Shenzhen Stock Exchange under 300433;
- H shares listed in Hong Kong under 6613.
One economic company therefore has securities in two markets. A screen that treats 300433 and 6613 as two unrelated companies can duplicate the exposure. A screen that treats them as identical securities can ignore currency, share-class, liquidity, and market-structure differences. The company-security distinction prevents both errors.
Toyota Industries shows why security mapping changes over time
The supplied Tesla network also includes Toyota Industries as a structural supplier. Toyota Industries' common stock previously traded under securities code 6201. The company completed a going-private transaction and its shares were delisted from the Tokyo and Nagoya exchanges effective June 1, 2026.
The economic company did not cease to exist when the listed security disappeared. The historical supply-chain relationship therefore should not be deleted simply because a current ticker is no longer available. The delisting-safe relationship guide covers that lifecycle problem in detail.
Company identity should be more durable than ticker identity
Tickers can change because of exchange differences, share classes, ADRs or GDRs, mergers, spinouts, delistings, relistings, and corporate renames. The underlying economic entity can persist through several of those events. A supply-chain database that keys relationships only to ticker strings can therefore break historical continuity.
The better model separates the company entity, the economic counterparty in the supplier-customer relationship, from the security, a tradable instrument representing an ownership claim. A listing is the exchange-specific market representation of that security.
Foreign numeric tickers are especially easy to misread
US investors are accustomed to alphabetic ticker symbols. Many foreign exchanges use numeric codes. The same numeric-looking identifier can mean nothing without the market.
For example: 005930 is meaningful in the context of Samsung Electronics on KRX, 373220 identifies LG Energy Solution on KRX, and 300433 identifies Lens Technology A shares in Shenzhen. The exchange is part of the identifier. Copying a number into a US-oriented market-data tool can produce the wrong result or no result.
ADRs and GDRs add another layer
A foreign company can have an original local listing plus a depositary receipt in another market. The depositary receipt can differ in currency, trading hours, liquidity, conversion ratio, and custody structure. The supply-chain relationship does not change because the investor chooses one trading wrapper over another. But portfolio analytics must know which security was actually purchased.
This matters for exposure aggregation
Suppose an investor holds a local share and a depositary receipt tied to the same company. If the portfolio system groups only by ticker, it can treat the positions as separate economic counterparties. That can understate concentration.
The reverse problem occurs when two genuinely different companies with similar names are merged incorrectly. Entity resolution belongs upstream of portfolio exposure calculation.
Public and private status should not define relationship existence
Toyota Industries demonstrates the broader point. A supplier can remain economically relevant after going private. A private company can become public.
A dual-listed company can add another security. The supply-chain network should track the company relationship independently from the current investability of one security. That makes the data useful for historical research and for discovering public-company exposure to private counterparties.
A practical foreign-security workflow
- Resolve the economic company first.
- Record the relationship at the company level.
- Identify the primary listing.
- Record exchange and security code together.
- Check for preferred shares, ADRs, GDRs, or dual listings.
- Distinguish security changes from company changes.
- Preserve historical relationships after delisting.
- Aggregate portfolio exposure at the company level before applying security-level market data.
- Use dated security mappings for historical research.
The public-stocks exposed to private companies guide shows why investability and economic exposure are different questions. The Tesla supplier-network analysis provides the broader relationship context around several of these counterparties. For relationship definitions and entity rules, read the Altsets methodology.
For company resolution and data interfaces, use the Altsets documentation. Browse Supply-Chain Data Use Cases for other cross-company research workflows.