MU · CIK 723125
What Micron Technology, Inc. told the SEC could break it.
Micron's disclosures center on how concentrated its footprint is in Asia and how exposed it is to China policy. A substantial portion of its operations runs through Taiwan, Singapore, Japan, Malaysia, China and India, and about 80% of its 2025 revenue came from products shipped outside the U.S. That tilt collides with regulation: after China's CAC cybersecurity review, critical-infrastructure operators in China may not buy Micron products, cutting revenue from mainland-China and Hong Kong customers. It also flags customer concentration, with a single unnamed customer at 17% of 2025 revenue (up from 10%), and equipment dependence, since for certain key tools — notably photolithography — it is sometimes reliant on a single supplier it may not be able to re-qualify quickly.
4 self-disclosed vulnerabilities, pulled from its own filings — each in the company’s words, with the source. This is the risk register almost nobody reads.
In its own words
What could break it.
Customer concentration
- one unnamed customer = 17% of total revenue (2025)medium
Revenue from a single (unnamed) customer was 17% of Micron's total revenue in 2025 (primarily its CMBU segment), up from 10% in 2024 — individual-customer concentration above the 10% threshold.
“Revenue from one customer was 17 % (primarily included in the CMBU segment) of total revenue for 2025.”
SEC filing →As of 2025
Geographic concentration
- manufacturing in Taiwan, Singapore, Japan, Malaysia, China, India; ~80% of revenue shipped outside U.S.medium
A substantial portion of Micron's operations are in Taiwan, Singapore, Japan, Malaysia, China and India, and ~80% of 2025 revenue was from products shipped to customer locations outside the U.S. — heavy Asia manufacturing and export concentration.
“a substantial portion of our operations are conducted in Taiwan, Singapore, Japan, Malaysia, China, and India, and many of our customers, suppliers, and vendors also operate internationally. In 2025, approximately one-third of our revenue was from sales to customers who have headquarters located outside the United States, while approximately 80% of our revenue in 2025 was from products shipped to customer locations outside the United States.”
Regulatory & policy
- China CAC ban — critical-infrastructure operators may not buy Micron productsmedium
Following China's CAC May 2023 cybersecurity review, critical information infrastructure operators in China may not purchase Micron products, cutting revenue from mainland-China and Hong Kong-headquartered companies, with risk of further Chinese government action.
“the CAC determined that critical information infrastructure operators in China may not purchase Micron products, impacting our revenue with companies headquartered in mainland China and Hong Kong, including direct sales as well as indirect sales through distributors.”
Supplier concentration
- single-supplier dependence for photolithography tools and certain materialsmedium
For certain key equipment — including photolithography tools — Micron is sometimes dependent on a single supplier, and certain materials/components/services are provided by a single or sole source it may not be able to re-qualify quickly, risking delays in next-generation process transitions.
“For certain key types of equipment, including photolithography tools, we are sometimes dependent on a single supplier. From time to time, we have experienced difficulties in obtaining some equipment on a timely basis due to suppliers' limited capacity.”
SEC filing →As of 2025
The hidden graph
Who it depends on, and who depends on it.
Relationships surfaced from filings — including ones disclosed by the other side, which is how the non-obvious ones come to light.
Its customers
“(“Marvell”), Qualcomm Incorporated (“Qualcomm”) and Intel and memory devices from Intel, Micron Technology (“Micron”), ADATA Technology Co., Ltd. (“ADATA”), Toshiba Corporation (“Toshiba”), Samsung Electronics Co., Ltd. (“Samsung”), and Western Digital Technologies, Inc. (“Western Digital”), are available from limited or sole sources of supply.”
Cited →“We purchase memory from SK Hynix Inc., Micron Technology, Inc., and Samsung.”
Cited →
Its suppliers
“our customers include Kioxia, Micron, Samsung, SanDisk, SK Hynix, Sony, ST Microelectronics, and UMC.”
Cited →
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