Great Lakes Dredge & Dock Corporation(GLDD)
HQ US40% share
Largest US dredging contractor; deepens/maintains harbor channels and builds port/quay civil works.
manufactured · input
Crane Rail and Quayside Infrastructure
Heavy-section crane rails (A120/A150) embedded in quay structure; civils and rail supply typically local; long lead time is permitting/dredging, not the rail itself.
6
Source countries
5
Companies
1
Goods affected
0
Claims on record
What depends on it
Goods that need this input
1 essential American goods rely on crane rail and quayside infrastructure somewhere upstream in their supply chain.
Where it comes from
Source countries
Share of global supply, by country.
| Country | Share of supply |
|---|---|
| JPJapan | 55% |
| CZCzech Republic | 11% |
| CACanada | 11% |
| ESSpain | 9% |
| LULuxembourg | 7% |
| CNChina | 5% |
Who makes it
Supplier companies
5 companies produce crane rail and quayside infrastructure.
voestalpine AG(VOE)
HQ AT30% share
Austrian steel and technology group; world leader in high-quality wire rod for automotive applications (valve springs, suspension springs, tire cord). voestalpine Draht GmbH in Leoben-Donawitz produces the spring steel wire rod that goes into virtually every European and many US/Japanese automotive valve springs. NYSE-listed ADR; Vienna Stock Exchange.
Royal Boskalis Westminster N.V.
HQ NL15% share
Dutch global dredging & marine-infrastructure giant; harbor deepening, land reclamation and quay construction.
ArcelorMittal(MT)
HQ LU
World's #2 steel producer; operates 3 US coke plants (as part of integrated steel mills in Indiana) that produce coal tar as a mandatory byproduct of the coking process. Coal tar is the raw material for creosote (railroad tie preservative). ArcelorMittal entered long-term coal tar supply agreements with Koppers Holdings through 2026. While ArcelorMittal does not make railroad ties, it is a critical upstream input supplier for the creosote that treats them. The 3 ArcelorMittal coke plants at Indiana Harbor (East Chicago IN), Burns Harbor (Portage IN), and Cleveland OH are primary US coal tar sources for the railroad industry.
Nippon Steel Corporation(5401.T)
HQ JP
Japan's largest and world's #3 steel producer; parent of Standard Steel LLC (the only North American forged rail wheel producer, acquired 2011). Also blocked from acquiring US Steel Corporation (Biden administration denied in January 2025 on national security grounds). The irony: US regulators blocked Nippon Steel from buying a general US steel company for 'national security' reasons, while Nippon Steel already wholly owns the company that provides 100% of the forged steel wheels for US freight railcars — a product with no domestic alternative. Nippon Steel is also a major rail producer for Japanese and global markets.