Coal production
0reported short tons
ACTIVE / CONTROLLER PORTFOLIO
Korea Zinc Co Ltd
Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.
MSHA CONTROLLER ID0199521
MINE PORTFOLIO
5 of 5 mines and facilities
2025-01-01 – 2026-10-18. Active records; production reporting is not required.
Material, method and type filters apply to this table. The portfolio’s status applies to the entire page. GEM fields describe their own release, not the selected MSHA year.
| Mine | Location / type | Coal · short tons | Hours worked | Violations | Accident records | On-site inspection hours |
|---|---|---|---|---|---|---|
| Coy Mine4000166 · Active6/8 quarters reported | Jefferson, TNUnderground · MSHA: Zinc | 0 | 318,168 | 64 | 6 | 649.5 |
| Immel Mine4000170 · Active6/8 quarters reported | Knox, TNUnderground · MSHA: Zinc | 0 | 376,600 | 99 | 4 | 860.0 |
| Middle Tennessee Mine4000864 · Active6/8 quarters reported | Smith, TNUnderground · MSHA: Zinc | 0 | 73,963 | 5 | 1 | 166.8 |
| Young Mill4001981 · Active6/8 quarters reported | Jefferson, TNFacility · MSHA: Zinc | 0 | 202,505 | 19 | 2 | 175.0 |
| Young Mine4000168 · Active6/8 quarters reported | Jefferson, TNUnderground · MSHA: Zinc | 0 | 382,097 | 54 | 6 | 804.5 |
Production and hours sum available quarterly reports. — means unavailable; zero safety records means none in the selected imported period. Ownership reflects the current MSHA record.
LOCATION
Portfolio map
5 of 5 mines with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Coy Mine36.12139, -83.20944Open map ↗
- Immel Mine36.06500, -83.70278Open map ↗
- Middle Tennessee Mine36.19444, -85.93528Open map ↗
- Young Mill36.07917, -83.62028Open map ↗
- Young Mine36.07694, -83.61583Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-18. All 5 mines listed under this controller were checked; 5 have reports in the available quarters. Totals use current ownership.
Hours worked
1,353,333reported employee hours
Tons per hour
0.00production ÷ hours worked
Missing values appear as —. Totals use available reports. Tons per hour requires production and hours for the same quarters and a nonzero hours total. * Striped bars mark partial mine coverage or an incomplete quarter. See the table for coverage.
Quarterly data and reporting coverage
| Quarter | Coal (short tons) | Hours worked | Tons / hour | Avg. employees | Coverage |
|---|---|---|---|---|---|
| 2025 Q1 | 0 | 254,257 | 0.00 | 551 | 5/5 mines reporting |
| 2025 Q2 | 0 | 219,170 | 0.00 | 543 | 5/5 mines reporting |
| 2025 Q3 | 0 | 208,694 | 0.00 | 542 | 5/5 mines reporting |
| 2025 Q4 | 0 | 206,962 | 0.00 | 539 | 5/5 mines reporting |
| 2026 Q1 | 0 | 218,323 | 0.00 | 557 | 5/5 mines reporting |
| 2026 Q2 | 0 | 245,927 | 0.00 | 603 | 5/5 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-18
Violations
24137 significant & substantial (S&S)
Accident records
191 records classified as fatality
Proposed penalties · USD
83,774.00226 of 241 violations with amounts
On-site inspection hours
2,655.7596 inspections · 96 with hours
Counts are published records, including contractor records. * The quarter was incomplete at the snapshot date; recent counts may rise as reports arrive. — means no reported amount or hours. Portfolio totals use current membership.
Quarterly safety data
| Quarter | Violations | S&S | Proposed USD | Accident records | Fatality records | Inspections | On-site hours |
|---|---|---|---|---|---|---|---|
| 2025-Q1 | 42 | 7 | 19,340.00 | 2 | 0 | 12 | 359.0 |
| 2025-Q2 | 30 | 5 | 10,323.00 | 1 | 0 | 9 | 343.3 |
| 2025-Q3 | 37 | 5 | 6,576.00 | 7 | 1 | 13 | 505.3 |
| 2025-Q4 | 39 | 3 | 10,944.00 | 4 | 0 | 16 | 417.8 |
| 2026-Q1 | 48 | 11 | 28,495.00 | 3 | 0 | 18 | 446.5 |
| 2026-Q2 | 18 | 3 | 4,015.00 | 0 | 0 | 13 | 256.3 |
| 2026-Q3 | 27 | 3 | 4,081.00 | 2 | 0 | 15 | 327.8 |
| 2026-Q4 * | 0 | 0 | — | 0 | 0 | 0 | — |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
- Young Mill · 4001981
Regular Safety and Health Inspection · 27.5 on-site hours
- Coy Mine · 4000166
Non-Injury Accident Investigation · 8.3 on-site hours
- Coy Mine · 4000166
Description not reported
- Immel Mine · 4000170
57.16005 · $151.00 proposed
- Coy Mine · 4000166
57.14100(b) · $151.00 proposed
- Immel Mine · 4000170
57.11001 · S&S · $288.00 proposed
- Immel Mine · 4000170
57.12032 · $151.00 proposed
- Immel Mine · 4000170
57.12030 · $193.00 proposed
- Coy Mine · 4000166
Regular Safety and Health Inspection · 73.5 on-site hours
- Immel Mine · 4000170
57.14100(b) · $151.00 proposed
- Immel Mine · 4000170
Verbal Hazard Complaint Inspections · 2.3 on-site hours
- Immel Mine · 4000170
57.14100(b) · $151.00 proposed
- Immel Mine · 4000170
57.14100(b) · $151.00 proposed
- Immel Mine · 4000170
Regular Safety and Health Inspection · 90.0 on-site hours
- Young Mine · 4000168
Regular Safety and Health Inspection · 65.3 on-site hours
- Young Mine · 4000168
57.11002 · $151.00 proposed
- Immel Mine · 4000170
Verbal Hazard Complaint Inspections · 5.0 on-site hours
- Middle Tennessee Mine · 4000864
Spot Inspection · 8.0 on-site hours
- Middle Tennessee Mine · 4000864
Regular Safety and Health Inspection · 12.5 on-site hours
- Immel Mine · 4000170
Verbal Hazard Complaint Inspections · 8.8 on-site hours
- Young Mine · 4000168
Verbal Hazard Complaint Inspections · 1.5 on-site hours
- Coy Mine · 4000166
57.12003 · $151.00 proposed
- Coy Mine · 4000166
57.14132(a) · $151.00 proposed
- Coy Mine · 4000166
57.14100(b) · $151.00 proposed
- Coy Mine · 4000166
57.12018 · $151.00 proposed
Safety sources and definitions
MSHA Violations (issue date), Accidents (accident date), and Inspections (begin date). Snapshot 2026-10-18.
Counts describe published rows, including contractor records; accident records are not distinct incidents or numbers of people injured.
Zero means no matching records in the imported sources, not proof of no events. Historical coverage differs by source; absence before a source begins reporting is not a zero incident rate. Invalid or absent dates and records after the snapshot are excluded.
S&S means SIG_SUB=Y. Fatality records use DEGREE_INJURY_CD=01. Proposed penalties are not final assessed or paid amounts; missing dollar values are omitted.
Inspection hours are SUM_TOTAL_ON_SITE_HOURS attributed to the inspection start date, without supervisor/trainee hours. Missing hours are omitted; a started inspection may still be open.
Portfolio totals use current mine membership, including events before the current owner or operator's tenure.
CFR headings link to the current Title 30 index; they are not historical legal determinations.
SELECTED PORTFOLIO
2 linked operators.
Relationships reflect the selected mine status and current MSHA controller/operator fields.