OSHA has inspected MKS Instruments Inc once in Oregon.
The inspection began on Sep 20, 2023 as a planned inspection, in Beaverton.
That inspection ended with 2 citation items: 2 other-than-serious.
None of the citations carried a penalty.
How that compares: the median penalty per cited inspection for manufacturing employers since 2015 is $3,600, and MKS Instruments Inc averages $0 (1 cited inspection).
MKS Instruments Inc also files yearly injury logs with OSHA, summarized below.
Oregon · latest 90 days of OSHA records
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Watch this company14523 Sw Millikan Way, Beaverton, OR 97005 · Semiconductor Machinery Manufacturing · OSHA's record · Phone and website on Google Maps
| Citation and rule | Type | Proposed | Current | Issued | Status |
|---|---|---|---|---|---|
| Citation 1, item 1 29 CFR 1910.1200(g)(8) · Hazard communication |
Other-than-serious | $0 | $0 | Feb 13, 2024 | Final |
| Citation 1, item 2 29 CFR OAR 437-001-0765(5)-3 |
Other-than-serious | $0 | $0 | Feb 13, 2024 | Final |
From the Form 300A summaries employers file with OSHA each year. Rate = recordable cases per 100 full-time workers.
In 2025, the Beaverton site logged 1 recordable injury or illness among about 153 workers: 0.6 per 100 full-time workers, against a median of 2.1 for its industry. Those cases cost 4 days away from work.
| Site and year | Workers | Cases | Days-away cases | Rate | Industry median |
|---|---|---|---|---|---|
| MKS Beaverton Beaverton · 2025 | 153 | 1 | 1 | 0.6 | 2.1 |
Current text from the Code of Federal Regulations. Some citations were issued under older wording.
29 CFR 1910.1200(g)(8)
(8) The employer shall maintain in the workplace copies of the required safety data sheets for each hazardous chemical, and shall ensure that they are readily accessible during each work shift to employees when they are in their work area(s). (Electronic access and other alternatives to maintaining paper copies of the safety data sheets are permitted as long as no barriers to immediate employee access in each workplace are created by such options.)
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Source: U.S. Department of Labor, OSHA enforcement data. A citation is OSHA's allegation; employers can contest it, and the status column shows where each item stands. Something wrong on this page? Tell us.