# Who does Norfolk Southern pay? Who are its key suppliers?
Canonical: https://valuechain.wiki/norfolk-southern · Facet: suppliers · Updated: 2026-09-12T00:04:13.516211+00:00 · Source: ValueChain.wiki (cited money-flow graph)

**Citable summary**: Norfolk Southern's confirmed suppliers/cost counterparties include Wabtec plus 2 undisclosed/aggregate relationships. Per the valuechain.wiki graph: 3 cost edges, backed by 4 dated sources, 1 of them primary filings (as of 2026-09-12).

### TTX Company (high)
- metric: Amount $316M · FY2025 · Expense incurred for use of TTX equipment
- note: Norfolk Southern uses TTX's pooled intermodal, automotive, and general-use railcars at stated rates. The equipment charges are recorded in purchased services and rents.
- [confirms] SEC EDGAR (EN, filing, published 2026-02-09) https://www.sec.gov/Archives/edgar/data/702165/000162828026006268/nsc-20251231.htm: "Expenses incurred for use of TTX equipment ... amounted to $316 million"

### 웹텍 (high)  → /wabtec.md
- metric: Count 330 locomotives · multi-year order announced 2022, completion targeted 2025 · Locomotives covered by the additional Wabtec modernization order
- note: Norfolk Southern contracts Wabtec to modernize aging locomotives with AC traction. Disclosures from both the railroad and supplier confirm the continuing program.
- [confirms] Norfolk Southern (EN, ir, published 2025-10-08) https://www.norfolksouthern.com/en/newsroom/story-yard/norfolk-southern-powers-past-1-000th-locomotive-modernization: "Wabtec is also playing a large role"
- [confirms] Wabtec Corporation (EN, ir, published 2022-03-23) https://ir.wabteccorp.com/news-releases/news-release-details/wabtec-modernize-330-norfolk-southern-locomotives/: "an additional multi-year order from Norfolk Southern to modernize 330 locomotives"

### Progress Rail (high)
- metric: Count 96 locomotives · deliveries scheduled 2027-2029 · EMD SD70M-2 locomotives covered by the Progress Rail modernization agreement
- note: Norfolk Southern signed a locomotive modernization agreement with Caterpillar subsidiary Progress Rail. Deliveries are scheduled in phases, and the contract value was not disclosed.
- [confirms] Progress Rail (EN, ir, published 2026-03-09) https://www.progressrail.com/en/company/news/press-releases/2026-progress-rail-partners: "signed an agreement with Norfolk Southern to modernize 96 EMD SD70M-2 locomotives"

### TTX Company (high)
- metric: Market share 19.78% · as of 2025-12-31 · Norfolk Southern ownership interest in TTX
- note: Norfolk Southern owns TTX alongside six other North American railroads. The stake is reported as an equity-method investment alongside the equipment-use relationship.
- [confirms] SEC EDGAR (EN, filing, published 2026-02-09) https://www.sec.gov/Archives/edgar/data/702165/000162828026006268/nsc-20251231.htm: "We have a 19.78% ownership interest in TTX."

Reverse side: https://valuechain.wiki/norfolk-southern/customers.md · Ripple: https://valuechain.wiki/norfolk-southern/ripple.md

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