What Sits Upstream of SK Hynix? The 3.1B SK ecoplant Relationship
August 6, 2026
Altsets
Research by Altsets Research
Altsets estimates SK ecoplant's relationship with SK Hynix at 36.49% of supplier revenue, 3.1B USD, and 18.81% of SK Hynix COGS, revealing a material second-degree dependency.
Data used:Altsets Supply Chain Intelligence: 90k+ entities, 400k+ relationships, 20+ years of history.
Key findings
- The SK ecoplant to SK Hynix relationship is estimated at 36.49% of SK ecoplant revenue, 3.1B USD in relationship size, and 18.81% of SK Hynix COGS.
- The 36.49% supplier revenue estimate makes SK Hynix a highly concentrated customer in the displayed SK ecoplant relationship.
- The edge shows why second-degree supply-chain analysis can reveal economically significant exposure hidden behind a first-degree supplier such as SK Hynix.
SK ecoplant is the economically significant relationship highlighted one step upstream of SK Hynix. Altsets estimates the relationship at 36.49% of SK ecoplant revenue, 3.1B USD in relationship size, and 18.81% of SK Hynix cost of goods sold as of July 30, 2026.
The immediate conclusion is that this is a highly concentrated upstream relationship in the displayed data. SK Hynix represents more than one third of SK ecoplant revenue, while SK ecoplant represents nearly one fifth of SK Hynix costs in this relationship view. That makes the edge useful for second-degree dependency research: a researcher following SK Hynix customers can continue one step upstream and find another economically significant relationship beneath the memory supplier itself.
The relationship in one row
| Relationship | Supplier revenue | Relationship size | Customer COGS |
|---|---|---|---|
| SK ecoplant to SK Hynix | 36.49% | 3.1B USD | 18.81% |
Both relative percentages are high enough that the relationship deserves attention from either direction.
Why 36.49% is the first number to notice
The 36.49% supplier revenue estimate implies that SK Hynix is an especially important customer inside SK ecoplant's mapped revenue base.
That makes SK Hynix events relevant to SK ecoplant research. A major change in semiconductor construction, fab utilization, infrastructure spending, or materials demand at SK Hynix could justify a closer look at SK ecoplant because the displayed customer concentration is large.
The percentage does not predict the size or timing of any future impact. It does not show contractual minimums, backlog, or business-segment allocation. It tells the researcher that the customer relationship is too large to treat as incidental.
Why 18.81% matters from the SK Hynix side
The customer-side estimate is also substantial. Altsets associates the relationship with 18.81% of SK Hynix COGS.
That indicates meaningful cost exposure in the mapped relationship, but cost exposure is not the same as operational dependence. SK Hynix may use multiple suppliers, subsidiaries, facilities, and forms of infrastructure. The data does not say how quickly any individual input could be replaced. Still, an estimated share approaching one fifth of costs is large enough to elevate the relationship in supplier-event research.
If the starting event is at SK ecoplant, SK Hynix belongs on the downstream investigation list. If the starting event is at SK Hynix, SK ecoplant belongs on the upstream customer-concentration list.
What SK ecoplant actually provides to the semiconductor ecosystem
SK ecoplant currently describes a semiconductor business spanning fab infrastructure, utilities, industrial gases, photoresists, etching gases, precursors, and other materials and services.
Its public materials describe semiconductor manufacturing infrastructure and essential materials rather than one single product category. That breadth helps explain why the company can appear upstream from a large memory producer. The public materials do not identify which exact service, material, subsidiary, or facility accounts for the 3.1B USD Altsets relationship estimate with SK Hynix.
That distinction matters. Business context can make a relationship plausible without proving the exact commercial composition of the edge.
Why this relationship changes a network view
A one-degree supplier map around Nvidia might stop at SK Hynix. A two-degree network can reveal SK ecoplant behind it.
That changes the research question from "who supplies Nvidia?" to "what economically important relationships sit behind Nvidia's suppliers?"
The answer can matter for event propagation. A disruption at a second-degree supplier can be relevant even when the affected company is not directly connected to the final customer in the first-degree map.
The strength of this example is that the upstream edge is not merely present. It carries large estimates on both the supplier-revenue and customer-cost sides.
A practical second-degree workflow
Start with a company of interest, identify a material first-degree supplier, then map one additional upstream layer. Rank those second-degree edges using supplier revenue percentage, customer cost percentage, and relationship size where available.
That process helps separate economically meaningful upstream paths from a large graph of weak or unquantified connections. In this case, the SK ecoplant to SK Hynix relationship is an obvious candidate for deeper investigation because 36.49%, 18.81%, and 3.1B USD are all substantial in the displayed data.
What the data does not establish
The estimates do not prove a particular facility dependency, material dependency, contract, construction project, or gas supply arrangement. They do not establish replacement time, inventory, exclusivity, pricing power, or the probability that an SK ecoplant event would reach SK Hynix customers. Those questions require additional operational evidence. For relationship direction, metric definitions, and point-in-time limitations, read the Altsets supply-chain data methodology.
How this differs from the SK Hynix customer comparison
The SK Hynix, Nvidia, and Apple analysis looks downstream from SK Hynix to compare customer relationships. This article looks upstream from SK Hynix and asks whether another economically significant dependency exists beneath the memory supplier.
The displayed answer is yes. SK ecoplant appears as a 3.1B USD relationship associated with 36.49% of SK ecoplant revenue and 18.81% of SK Hynix COGS. Browse the Company Dependency Research collection for other quantified network paths.