Facility Info
364
Mountain Pass Mine
10/17/07 Rec'd a change of owner applications for all the permits currently under Union Oil Molycorp. The change is going from Union Oil Molycorp to Chevron Mining, Inc. The company/facility numbers will be staying the same. (005/0364) Barbara Weese
08-08-2017 Moved Companies From Molycorp Minerals, LLC(5) to MP Mine Operations LLC(2349)
| Permit Number | Permit Description | Equipment Description | Issue Date | Expiration Date | Action | |
|---|---|---|---|---|---|---|
| C014306 | PRASEODYMIUM NEODYMIUM DRYER BAGHOUSE | Manufacturer: Sly Inc. Model: STJ-1311-10 Seria... | 02/10/2026 | 02/28/2027 |
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| B014307 | PRASEODYMIUM NEODYMIUM CALCINER | Calciner with burner rated at 4 MMBtu/hr. Ducti... | 02/10/2026 | 02/28/2027 |
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| B014308 | PRASEODYMIUM NEODYMIUM CALCINING CONVEYANCE SYST... | N/A | 02/10/2026 | 02/28/2027 |
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| C014309 | PRASEODYMIUM NEODYMIUM CALCINER BAGHOUSE | Manufacturer: Sly Inc. Model: STJ-1315-8 Serial... | 02/10/2026 | 02/28/2027 |
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| B014310 | PRASEODYMIUM NEODYMIUM PACKAGING SYSTEM | N/A | 02/10/2026 | 02/28/2027 |
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| C014311 | PRASEODYMIUM NEODYMIUM PACKAGER #1 DUST COLLECTO... | 562-F66-DC15 Manufacturer: Nordic Air Filtrati... | 02/10/2026 | 02/28/2027 |
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| C014312 | PRASEODYMIUM NEODYMIUM PACKAGER #2 DUST COLLECTO... | 562-F66-DC17 Manufacturer: Nordic Air Filtrati... | 02/10/2026 | 02/28/2027 |
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| C014313 | PRASEODYMIUM NEODYMIUM BULK BAG UNLOADER DUST CO... | 562-F66-DC18 Manufacturer: Nordic Air Filtrati... | 02/10/2026 | 02/28/2027 |
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| B014388 | LANTHANUM CARBONATE DRYER | Dryer with two burners rated at 8.2 MMBtu/hr eac... | 02/10/2026 | 02/28/2027 |
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| C014389 | BAGHOUSE, LANTHANUM CARBONATE DRYER | Manufacturer: Sly Inc. Model: STJ-2917-10 Seria... | 02/10/2026 | 02/28/2027 |
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| B014390 | LANTHANUM CARBONATE DRYER SYSTEM | N/A | 02/10/2026 | 02/28/2027 |
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| B014391 | LANTHANUM CARBONATE PACKAGING SYSTEM | N/A | 02/10/2026 | 02/28/2027 |
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| C014392 | DUST COLLECTOR, LANTHANUM CARBONATE BULK BAG PAC... | Manufacturer: Nordic Air Filtration Model: CD 3... | 02/10/2026 | 02/28/2027 |
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| B014413 | OXALIC ACID SYSTEM #1 | N/A | 02/10/2026 | 02/28/2027 |
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| C014414 | DUST COLLECTOR, OXALIC ACID BULK BAG UNLOADER #1... | Manufacturer: Schenck Process, LLC, Model: 19AV... | 02/10/2026 | 02/28/2027 |
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| B014415 | OXALIC ACID SYSTEM #2 | N/A | 02/10/2026 | 02/28/2027 |
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| C014416 | DUST COLLECTOR, OXALIC ACID BULK BAG UNLOADER #2... | Manufacturer: Schenck Process, LLC, Model: 19AV... | 02/10/2026 | 02/28/2027 |
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| B014417 | SODA ASH SYSTEM | N/A | 02/10/2026 | 02/28/2027 |
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| B014418 | DIATOMACEOUS EARTH SYSTEM | N/A | 02/10/2026 | 02/28/2027 |
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| C014419 | DUST COLLECTOR, DIATOMACEOUS EARTH MIX TANK | Manufacturer: Magnum Systems Model: 18BV2 Seria... | 02/10/2026 | 02/28/2027 |
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| B014420 | LEACH PRESSURE LEAF FILTER SYSTEM | N/A | 02/10/2026 | 02/28/2027 |
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| C014421 | DUST COLLECTOR, LEACH PRESSURE LEAF FILTER | Manufacturer: Flexicon, Model: BD-S30T-X, Seria... | 02/10/2026 | 02/28/2027 |
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| B014422 | SX FEED PREP PRESSURE LEAF FILTER SYSTEM | N/A | 02/10/2026 | 02/28/2027 |
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| C014423 | DUST COLLECTOR, SX FEED PREP PRESSURE LEAF FILTE... | Manufacturer: Flexicon, Model: BD-S30T-X, Seria... | 02/10/2026 | 02/28/2027 |
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| B011335 | CRUSHING PLANT | N/A | 02/10/2026 | 02/28/2027 |
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