Risk Sleuth
UCTT · 10-K filed 23 Feb 2026 · year to 26 Dec 2025

Ultra Clean Holdings

29 named things its latest annual report says its results depend on, each in the company's own words. 15 of them are also named by other companies we've read.

Customers

Applied Materials, Inc.

earns from · more than 10% of our total revenuesnamed as a risk
Our two largest revenue customers in fiscal years 2025, 2024 and 2023 were Applied Materials, Inc. and Lam Research Corporation, each of which accounted for more than 10% of our total revenues in those three years.Business (Item 1)

Also named by CLS, KLAC, LRCX

Top two customers (Applied Materials and Lam Research)

concentrated in · 58.7%named as a risk
Our top two customers accounted for 58.7%, 54.5% and 57.4% of our revenues for fiscal years 2025, 2024 and 2023, respectively.Risk factors (Item 1A)

Also named by DORM

Lam Research Corporation

earns from · more than 10% of our total revenuesnamed as a risk
Our two largest revenue customers in fiscal years 2025, 2024 and 2023 were Applied Materials, Inc. and Lam Research Corporation, each of which accounted for more than 10% of our total revenues in those three years.Business (Item 1)

Three largest customers (accounts receivable)

concentrated in · 36.0%
We believe the three largest customer gross accounts receivable balances (36.0% as of December 26, 2025) do not represent a significant credit risk, based on cash flow forecasts, balance sheet analysis, and past collection experience.Market risk (Item 7A)

Also named by INTC, PDFS, SWKS, TREX, WDC

Suppliers

Single-source and sole-source suppliers

depends onnamed as a risk
For many of the components and raw materials we use in our products and services, we rely on both single-source and sole-source suppliers, many of whom have been specifically designated by our customers.Risk factors (Item 1A)

Also named by GEHC

Partners and platforms

Cinos Co., Ltd. (Cinos Korea) and Cinos Xi'an joint ventures

named as a risk
In particular, we participate in a joint venture with Cinos Co., Ltd. (“Cinos Korea”) in South Korea and Cinos Xi’an in China.Risk factors (Item 1A)

Other companies

Semiconductor industry

concentrated in · Approximately 95.7% of our total revenuesnamed as a risk
Approximately 95.7% of our total revenues for the fiscal year 2025 came from multiple segments of the semiconductor industry, which include IDM, memory, foundry, OEM, and sub-tier suppliers.Business (Item 1)

Also named by CDNS, GGG, MTRN, SOLS

Term B loan

$481.4 millionnamed as a risk
At the end of fiscal 2025, the Term B loan had a balance of $481.4 million.Market risk (Item 7A)

Competitors

Ichor Systems, Inc.

competes with
Our principal competitors for gas delivery systems are Ichor Systems, Inc. and Fujikin Incorporated; our principal competitors for other critical subsystems are Foxsemicon Integrated Technology Inc., Jabil, Inc., VDL ETG, Celestica Inc. and Benchmark Electronics, Inc.Business (Item 1)

Fujikin Incorporated

competes with
Our principal competitors for gas delivery systems are Ichor Systems, Inc. and Fujikin Incorporated; our principal competitors for other critical subsystems are Foxsemicon Integrated Technology Inc., Jabil, Inc., VDL ETG, Celestica Inc. and Benchmark Electronics, Inc.Business (Item 1)

KoMiCo

competes with
For our services, cleaning and coating offerings, our main competitors are KoMiCo, SHT, EnPro and Pentagon.Business (Item 1)

Places

International markets

earns from · 75.9%named as a risk
We generated approximately 75.9% and 73.0% of our revenues in international markets for fiscal years 2025 and 2024, respectively.Risk factors (Item 1A)

Also named by ABNB, ADSK, BSX, CROX, CRWD, DOCU, DXCM, EFX and 18 more

Asia Pacific

operates in · $120.2 millionnamed as a risk
The carrying amount of our fixed assets in Asia Pacific and EMEA were $120.2 million and $83.0 million, respectively as of December 26, 2025, and $121.0 million and $84.5 million, respectively as of December 27, 2024.Risk factors (Item 1A)

Also named by AIG, AVY, BLK, BNY, CCK, CL, COHR, DCI and 17 more

EMEA

operates in · $83.0 millionnamed as a risk
The carrying amount of our fixed assets in Asia Pacific and EMEA were $120.2 million and $83.0 million, respectively as of December 26, 2025, and $121.0 million and $84.5 million, respectively as of December 27, 2024.Risk factors (Item 1A)

Also named by EQIX, FDS, HLIO, MDB

China

operates innamed as a risk
We and our customers have significant operations in China.Risk factors (Item 1A)

Also named by A, AA, AAOI, AAP, AAPL, AB, ADI, AEHR and 261 more

Israel

concentrated innamed as a risk
Our Fluid Solutions business operations are concentrated in Israel, where key employees, offices and production facilities are located.Risk factors (Item 1A)

Also named by AIOT, AKAM, AMAT, AMGN, APP, ASTS, AVY, BSX and 31 more

California data center

depends onnamed as a risk
The manufacture and delivery of our products, the provision of our services and our financial reporting depend on the continuing operation of our technology infrastructure and systems, particularly our data center located in California.Risk factors (Item 1A)

Malaysia

operates in
Our future cash requirements will depend on many factors, including the following capital expenditures: expansion of manufacturing in Malaysia and other locations as part of our strategic growth plan; enhancement of IT systems and cybersecurity infrastructure; manufacturing process changes and facility modifications required to meeting evolving customer requirements; and timing of new product introductions.Risk factors (Item 1A)

Also named by A, ANET, AVGO, CGNX, DELL, FSLR, LITE, MSI and 6 more

Hazards

Israel-Hamas conflict

operates innamed as a risk
This instability has disrupted and may continue to disrupt our workforce availability, our ability to ship products to customers, and our ability to receive materials from suppliers.Risk factors (Item 1A)

Earthquakes in Hayward, California and Taiwan (Hsinchu, Tainan)

operates innamed as a risk
We have facilities in areas with elevated seismic activity, including Hayward, California, and our Taiwan facilities in Hsinchu and Tainan.Risk factors (Item 1A)

Commodities and inputs

Mass flow controllers, valves and regulators

depends onnamed as a risk
In the past, we have experienced shortages in supplies of various components, such as mass flow controllers, valves and regulators, and certain prefabricated parts, such as sheet metal enclosures, used in the manufacture of our products.Risk factors (Item 1A)

Fluid Solutions raw materials

exposed to its pricenamed as a risk
Fluid Solutions, for example, is susceptible to experiencing sharp price fluctuations in raw materials, which can significantly affect, and has affected in the past, its cost of revenue and could erode profitability and competitiveness.Risk factors (Item 1A)

Tantalum

We participate in the Responsible Business Alliance’s Responsible Minerals Assurance Process for Tantalum.Business (Item 1)

Also named by MTRN, VSH, ZBH

Regulators

U.S. Department of Commerce Entity List / export controls

subject to · over 140 Chinese entitiesnamed as a risk
Since December 2024, the U.S. Department of Commerce has significantly expanded export license requirements on certain semiconductor goods and technologies sold to China, and has added over 140 Chinese entities to its Entity List.Risk factors (Item 1A)

China and South Korea local-preference policies

subject tonamed as a risk
Without notice, these government authorities may continue or alter these policies to our detriment, including imposition of confiscatory taxation policies, new restrictions on currency conversion, and limitations on sources of supply.Risk factors (Item 1A)

Laws and programs

OECD Pillar Two global minimum tax

subject to · fifteen percentnamed as a risk
We currently benefit from certain tax incentives in Singapore and Malaysia that result in effective tax rates below fifteen percent in those jurisdictions.Risk factors (Item 1A)

Also named by ABNB, ACN, ADI, ADM, ADSK, AKAM, ALB, AMAT and 70 more

U.S.-China tariffs

exposed to its pricenamed as a risk
Additionally, tariffs and retaliatory tariffs levied by the United States and China on certain raw materials have in the past increased the cost of materials for our products.Risk factors (Item 1A)

Also named by ALB, AXGN, LLY, MXL, QXO, WAT

Conflict minerals rules (Form SD)

subject tonamed as a risk
Complying with these rules could adversely affect the sourcing, supply and pricing of materials used in our products and result in substantial additional costs.Risk factors (Item 1A)

Technology

Artificial intelligence demand

earns fromnamed as a risk
We are currently anticipating a period of historically elevated demand, driven by growth in artificial intelligence.Risk factors (Item 1A)

Also named by LUMN, ONTO