# Who does RTX pay? Who are its key suppliers?
Canonical: https://valuechain.wiki/rtx · Facet: suppliers · Updated: 2026-07-12T03:54:56.92+00:00 · Source: ValueChain.wiki (cited money-flow graph)

**Citable summary**: RTX's confirmed suppliers/cost counterparties include Hanwha Aerospace, 머큐리시스템즈, 하우멧 에어로스페이스 plus 4 undisclosed/aggregate relationships. Per the valuechain.wiki graph: 7 cost edges, backed by 12 dated sources, 3 of them primary filings (as of 2026-07-12).

### 원자재·단일공급원 바스켓 (비공개) (high)
- note: RTX depends on a global supply chain and procures scarce raw materials including cobalt, tantalum, chromium, rhenium, nickel, and titanium. Some components rely on single-source and foreign suppliers, and some materials were historically sourced from sanctioned areas such as Russia, creating supply risk. Individual suppliers and amounts are undisclosed.
- [confirms] U.S. SEC EDGAR (EN, filing, published 2026-02-06) https://www.sec.gov/Archives/edgar/data/101829/000010182926000006/rtx-20251231.htm: "certain raw materials, such as cobalt, tantalum, chromium, rhenium, nickel, and titanium, and we rely on foreign suppliers as single-source suppliers of some components."

### Hanwha Aerospace (high)  → /hanwha-aerospace.md
- note: Hanwha Aerospace has been a risk-and-revenue-sharing partner supplying engine components for Pratt & Whitney's GTF (PW1000G) engines since signing an RSP (Risk and Revenue Sharing Program) contract in 2015. Under an RSP, the partner shares both revenue and risk in proportion to its stake, making Hanwha a structural supplier and collaborator on the GTF commercial engine program.
- [confirms] Dealsite (KO, news, published 2025-04-30) https://dealsite.co.kr/articles/140755: "In 2015, in its engine components business, Hanwha signed a GTF engine RSP (Risk and Revenue Sharing Program) contract with America's Pratt & Whitney (P&W)."
- [confirms] Hanwha (EN, news, published 2021-03-24) https://www.hanwha.com/newsroom/news/press-releases/hanwha-aerospace-usa-earns-supplier-gold-certification-from-pratt-whitney.do: "Hanwha Aerospace USA produces engine components such as integrally bladed rotors and cases with P&W (RTX) as a key customer, and earned P&W's Supplier Gold certification."
- [confirms] Pratt & Whitney (EN, ir, published 2019-06-17) https://app.prattwhitney.com/Pratt-Whitney-and-Hanwha-Aerospace-Co-Ltd-Sign-GTF-TM-Engine-Aftermarket-Agreements: "Hanwha has been a risk and revenue sharing partner on all GTF engine programs since 2015 and was designated a repair source for GTF parts."

### 머큐리시스템즈 (high)  → /mercury-systems.md
- note: Procures radar signal-processing subsystems (incl. up to $96M LTAMDS subcontract for nine radars); RTX accounts for 13% of Mercury's FY2025 revenue.
- [confirms] SEC EDGAR (EN, filing, published 2025-08-11) https://www.sec.gov/Archives/edgar/data/1049521/000104952125000024/mrcy-20250627.htm: "RTX comprised 13% of Mercury's FY2025 revenues."
- [confirms] GlobeNewswire (EN, ir, published 2024-02-01) https://www.globenewswire.com/news-release/2024/02/01/2822461/18849/en/Mercury-Awarded-Subcontract-for-the-U-S-Army-s-Next-Generation-LTAMDS-Radar-System.html: "Up to $96M LTAMDS subcontract with Raytheon."

### 하우멧 에어로스페이스 (high)  → /howmet-aerospace.md
- note: Engine castings/forgings supplier; RTX is ~11% of Howmet's 2025 third-party sales.
- [confirms] SEC / Howmet Aerospace (EN, filing, published 2026-02-12) https://www.sec.gov/Archives/edgar/data/4281/000000428126000012/hwm-20251231.htm: "RTX ~11% of Howmet's 2025 third-party sales."

### L3Harris (mid)  → /l3harris.md
- metric: supply contract value $1B · 2020 (5-year strategic agreement) · Five-year $1 billion agreement for Standard Missile propulsion systems (then Aerojet Rocketdyne, now owned by L3Harris)
- note: Raytheon depends heavily on L3Harris's Aerojet Rocketdyne subsidiary for solid rocket motors (SRMs) used in its missiles. In 2020 it signed a five-year, $1 billion agreement to buy propulsion systems for Standard Missile products, and L3Harris acquired Aerojet in 2023. As of 2024 the relationship remained so critical that Raytheon was seeking a third domestic SRM source beyond Aerojet and Northrop Grumman.
- [confirms] Breaking Defense (EN, news, published 2025-04-07) https://breakingdefense.com/2025/04/raytheon-awards-northrop-nammo-solid-rocket-motor-development-contracts/: "Currently the Mk72 solid rocket motor for Raytheon is built by L3Harris; constraints on a US SRM supply comprised solely of L3Harris and Northrop have pushed Raytheon to seek additional sources."
- [confirms] Defense One (EN, news, published 2024-07-23) https://www.defenseone.com/business/2024/07/raytheon-hunting-another-us-supplier-solid-rocket-motors/398263/: "We are strategically looking at how we can have a third domestic source of rocket motors"
- [confirms] Military & Aerospace Electronics (EN, news, published 2020-03-26) https://www.militaryaerospace.com/commercial-aerospace/article/14231203/standard-missile-products-propulsion: "Raytheon Company's Missile Systems business has reached a $1 billion, five-year strategic agreement to purchase propulsion systems from Aerojet Rocketdyne for Standard Missile products."

### Northrop Grumman (mid)  → /northrop-grumman.md
- note: Raytheon's other solid rocket motor supplier is Northrop Grumman. The U.S. SRM market is a duopoly of L3Harris (Aerojet) and Northrop Grumman, and Raytheon relies on both to meet surging demand for missiles such as AMRAAM and Sidewinder.
- [confirms] Breaking Defense (EN, news, published 2025-04-07) https://breakingdefense.com/2025/04/raytheon-awards-northrop-nammo-solid-rocket-motor-development-contracts/: "Raytheon awarded Northrop Grumman (and Norway's Nammo) a contract to develop their own Mk72 SRM production line, bringing Northrop in as a dual source."
- [confirms] Defense One (EN, news, published 2024-07-23) https://www.defenseone.com/business/2024/07/raytheon-hunting-another-us-supplier-solid-rocket-motors/398263/: "RTX currently depends on L3Harris's Aerojet Rocketdyne subsidiary for solid rocket motors alongside Northrop Grumman."

### 아비오 (mid)  → /avio.md
- note: RTX's Raytheon contracted Avio for defense solid rocket motor development (Jul 2024) and a U.S. facility MoU (Nov 2025) to diversify its SRM supply base.
- [confirms] RTX (EN, ir, published 2025-11-10) https://www.rtx.com/news/news-center/2025/11/10/rtxs-raytheon-avio-sign-mou-to-establish-new-solid-rocket-motor-facility-in-the: "RTX's Raytheon, Avio sign MoU to establish new solid rocket motor facility in the U.S."
- [confirms] RTX (EN, ir, published 2024-07-23) https://www.rtx.com/news/news-center/2024/07/23/rtxs-raytheon-partners-with-avio-to-build-a-more-resilient-u-s-defense-industri: "Raytheon signed a contract with Avio for development of critical solid rocket motors for defense applications."

Reverse side: https://valuechain.wiki/rtx/customers.md · Ripple: https://valuechain.wiki/rtx/ripple.md

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