Data / Mines / Mitsubishi Cement Corp
Mitsubishi Cement Corp: 1 open mine, 179 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Mitsubishi Cement Corp (MSHA operator ID L10104) operates 1 open mine with 160 employees in California, mostly cement. Since January 1, 2022 MSHA inspectors issued it 179 citations and orders with $126,122 in proposed penalties, and it reported 19 injury or illness cases. Data from MSHA, November 6, 2026.
The request: Watch Mitsubishi Cement Corp (MSHA operator ID L10104): each new citation, each accident report and each new mine. $10 of work on sign-up, no card.
SpecStream is the live web data engine for teams and agents. It reads the mine, citation, inspection and accident files that MSHA publishes, and this page is that reading. Ask for the mines of a commodity, state or operator with the operator's headquarters, website and size added from the web, and new mines, new citations and new accident reports arrive in your sheet, CRM, Slack or agent as MSHA posts them.
- MSHA operator ID
- L10104
- Open mines
- 1
- Employees at open mines
- 160
- States
- California
- Parent company
- Mitsubishi Corp
- Citations and orders since January 1, 2022
- 179
- Significant and substantial
- 27 (15.1%)
- Closure orders
- 7
- High negligence or reckless
- 14
- Proposed penalties
- $126,122
- Amount paid so far
- $77,121
- Inspections
- 18
- Inspector hours on site
- 744
- Citations per inspection
- 9.94 (all mines 2.30)
- Accident reports
- 20
- Injury and illness cases
- 19
- Fatalities
- 0
- Latest MSHA record
- October 15, 2026
Open mines of Mitsubishi Cement Corp
Ranked by citations since January 1, 2022.
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Cushenbury Plant | Mitsubishi Cement Corp | San Bernardino County, CA | Cement | 160 | 179 |
Citations and injury cases by year
Calendar years since 2022; 2026 runs to the date of the MSHA files.
| Year | Citations and orders | Significant and substantial | Proposed penalties | Injury and illness cases |
|---|---|---|---|---|
| 2022 | 27 | 4 | $37,516 | 2 |
| 2023 | 28 | 2 | $15,018 | 8 |
| 2024 | 39 | 4 | $13,004 | 2 |
| 2025 | 63 | 11 | $39,357 | 6 |
| 2026 | 22 | 6 | $21,227 | 1 |
Standards cited most at Mitsubishi Cement Corp
Sections of Title 30 of the Code of Federal Regulations named on the citations, with the part each belongs to.
| Standard | What the part covers | Citations |
|---|---|---|
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 33 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 23 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 17 |
| 30 CFR 56.16001 | Surface metal and nonmetal mines | 12 |
| 30 CFR 56.18002 | Surface metal and nonmetal mines | 10 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 10 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 9 |
| 30 CFR 47.41 | Hazard communication | 6 |
| 30 CFR 46.7 | Training at sand, gravel and surface stone mines | 5 |
| 30 CFR 56.16005 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.4201 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.20011 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.14207 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.12002 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.12018 | Surface metal and nonmetal mines | 3 |
Injury and illness cases at Mitsubishi Cement Corp
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 16 |
| No lost time, or an occupational illness | 3 |
What the accident reports at Mitsubishi Cement Corp describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handling of materials | 8 |
| Machinery | 5 |
| Slip or fall of person | 5 |
| Nonpowered haulage | 1 |
| Exploding vessels under pressure | 1 |
Equipment named in accident reports at Mitsubishi Cement Corp
| Equipment | Reports |
|---|---|
| Machine | 2 |
| Hand tools (powered) | 2 |
| Blow pipe | 1 |
| Rock drill | 1 |
| Hoist | 1 |
| Carriage-mounted drills | 1 |
| Ore haulage trucks - off highway trucks | 1 |
US government work, public domain. Counts come from the MSHA files published on November 6, 2026. An open mine is one MSHA lists as Active, Intermittent, New Mine, Temporarily Idled or NonProducing; 13,673 were open that day. Citations, penalties, inspections and accident reports run from January 1, 2022. A citation is an inspector's allegation and an operator can contest it; the penalty is the amount MSHA first proposed, before any contest or settlement. An operator is the legal entity MSHA assesses, and a parent company is its controller. Mines run by sole proprietors or by individuals are counted in every total and are not named. This page uses MSHA data and is not endorsed or certified by MSHA. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.