GHG Summary Report

CO2 equivalent emissions from facility subparts C-II, SS, and TT (metric tons):5,909.2
CO2 equivalent emissions from supplier subparts LL-QQ (metric tons):
Biogenic CO2 emissions from facility subparts C-II, SS, and TT (metric tons):0
Cogeneration Unit Emissions Indicator:N
GHG Report Start Date:2020-01-01
GHG Report End Date:2020-12-31
Description of Changes to Calculation Methodology:
Plant Code Indicator:N
Primary NAICS Code:212299
Second Primary NAICS Code:

Parent Company Details:

Parent Company Name:MP MINE OPERATIONS LLC
Address:67750 Bailey Road, Mountain Pass, CA 92366
Percent Ownership Interest:100

Subpart C: General Stationary Fuel Combustion

Gas Information Details

Gas Name	Carbon Dioxide
Gas Quantity	5,902.3 (Metric Tons)
Own Result?

Gas Name	Biogenic Carbon dioxide
Gas Quantity	0 (Metric Tons)
Own Result?

Gas Name	Methane
Gas Quantity	0.12 (Metric Tons)
Own Result?

Gas Name	Nitrous Oxide
Gas Quantity	0.013 (Metric Tons)
Own Result?

Unit Details:

Unit Name : GP-2
Unit Type : OCS (Other combustion source)
Unit Description :
Other Unit Name :

Small Unit Aggregation Details:
Use Ivt Indicator: Y
Highest Maximum Rated Heat Input Capacity: 1.5
Cumulative Maximum Rated Heat Input Capacity:

Emission Details:
Annual Biogenic CO2 Emissions: 0 (metric tons)
Annual Fossil fuel based CO2 Emissions: 168.1 (metric tons)

Tier Fuel Details:

Fuel : Propane
Tier Name : Tier 1 (Equation C-1)
Tier Methodology Start Date : 2020-01-01
Tier Methodology End Date : 2020-12-31

Fuel Emission Details :

Total CO2 emissions	Total CH4 emissions	Total N2O emissions	Total CH4 emissions CO2e	Total N2O emissions CO2e
168.1 (Metric Tons)	0.01 (Metric Tons)	0.002 (Metric Tons)	0.2 (Metric Tons)	0.5 (Metric Tons)

Unit Name : CP-1
Unit Type : OCS (Other combustion source)
Unit Description :
Other Unit Name :

Common Pipe Details:
Use Ivt Indicator: Y
Maximum Rated Heat Input Capacity: 143
Cumulative Maximum Rated Heat Input Capacity: 470

Emission Details:
Annual Biogenic CO2 Emissions: 0 (metric tons)
Annual Fossil fuel based CO2 Emissions: 0 (metric tons)

Tier Fuel Details:

Fuel : Natural Gas (Weighted U.S. Average)
Tier Name : Tier 1 (Equation C-1)
Tier Methodology Start Date : 2020-01-01
Tier Methodology End Date : 2020-12-31

Fuel Emission Details :

Total CO2 emissions	Total CH4 emissions	Total N2O emissions	Total CH4 emissions CO2e	Total N2O emissions CO2e
0 (Metric Tons)	0 (Metric Tons)	0 (Metric Tons)	0 (Metric Tons)	0 (Metric Tons)

Unit Name : CP-2
Unit Type : OCS (Other combustion source)
Unit Description :
Other Unit Name :

Common Pipe Details:
Use Ivt Indicator: Y
Maximum Rated Heat Input Capacity: 25
Cumulative Maximum Rated Heat Input Capacity: 35

Emission Details:
Annual Biogenic CO2 Emissions: 0 (metric tons)
Annual Fossil fuel based CO2 Emissions: 5734.2 (metric tons)

Tier Fuel Details:

Total CO2 emissions	Total CH4 emissions	Total N2O emissions	Total CH4 emissions CO2e	Total N2O emissions CO2e
5734.2 (Metric Tons)	0.11 (Metric Tons)	0.011 (Metric Tons)	2.7 (Metric Tons)	3.2 (Metric Tons)