GHG Summary Report

CO2 equivalent emissions from facility subparts C-II, SS, and TT (metric tons):151,322.9
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:331110
Second Primary NAICS Code:

Parent Company Details:

Parent Company Name:CLEVELAND-CLIFFS INC
Address:200 Public Square, Cleveland, OH 44114
Percent Ownership Interest:100

Subpart C: General Stationary Fuel Combustion

Gas Information Details

Gas Name	Carbon Dioxide
Gas Quantity	55,914.1 (Metric Tons)
Own Result?

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

Gas Name	Methane
Gas Quantity	1.05 (Metric Tons)
Own Result?

Gas Name	Nitrous Oxide
Gas Quantity	0.105 (Metric Tons)
Own Result?

Unit Details:

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: 10
Cumulative Maximum Rated Heat Input Capacity: 50

Emission Details:
Annual Biogenic CO2 Emissions: 0 (metric tons)
Annual Fossil fuel based CO2 Emissions: 10162.3 (metric tons)

Tier Fuel Details:

Fuel : Natural Gas (Weighted U.S. Average)
Tier Name : Tier 1 (Equation C-1a, natural gas billing in therms)
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
10162.3 (Metric Tons)	0.19 (Metric Tons)	0.019 (Metric Tons)	4.8 (Metric Tons)	5.7 (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: 123
Cumulative Maximum Rated Heat Input Capacity: 123

Emission Details:
Annual Biogenic CO2 Emissions: 0 (metric tons)
Annual Fossil fuel based CO2 Emissions: 45152.5 (metric tons)

Tier Fuel Details:

Total CO2 emissions	Total CH4 emissions	Total N2O emissions	Total CH4 emissions CO2e	Total N2O emissions CO2e
45152.5 (Metric Tons)	0.85 (Metric Tons)	0.085 (Metric Tons)	21.3 (Metric Tons)	25.4 (Metric Tons)

Unit Name : CP-3
Unit Type : OCS (Other combustion source)
Unit Description :
Other Unit Name :

Common Pipe Details:
Use Ivt Indicator: Y
Maximum Rated Heat Input Capacity: 0.4
Cumulative Maximum Rated Heat Input Capacity:

Emission Details:
Annual Biogenic CO2 Emissions: 0 (metric tons)
Annual Fossil fuel based CO2 Emissions: 47.2 (metric tons)

Tier Fuel Details:

Total CO2 emissions	Total CH4 emissions	Total N2O emissions	Total CH4 emissions CO2e	Total N2O emissions CO2e
47.2 (Metric Tons)	0.00 (Metric Tons)	0.000 (Metric Tons)	0 (Metric Tons)	0 (Metric Tons)

Unit Name : CP-4
Unit Type : OCS (Other combustion source)
Unit Description :
Other Unit Name :

Common Pipe Details:
Use Ivt Indicator: Y
Maximum Rated Heat Input Capacity: 1.21
Cumulative Maximum Rated Heat Input Capacity:

Emission Details:
Annual Biogenic CO2 Emissions: 0 (metric tons)
Annual Fossil fuel based CO2 Emissions: 132.3 (metric tons)

Tier Fuel Details:

Total CO2 emissions	Total CH4 emissions	Total N2O emissions	Total CH4 emissions CO2e	Total N2O emissions CO2e
132.3 (Metric Tons)	0.00 (Metric Tons)	0.000 (Metric Tons)	0.1 (Metric Tons)	0.1 (Metric Tons)

Unit Name : CP-5
Unit Type : OCS (Other combustion source)
Unit Description :
Other Unit Name :

Common Pipe Details:
Use Ivt Indicator: Y
Maximum Rated Heat Input Capacity: 4.13
Cumulative Maximum Rated Heat Input Capacity:

Emission Details:
Annual Biogenic CO2 Emissions: 0 (metric tons)
Annual Fossil fuel based CO2 Emissions: 385.3 (metric tons)

Tier Fuel Details:

Total CO2 emissions	Total CH4 emissions	Total N2O emissions	Total CH4 emissions CO2e	Total N2O emissions CO2e
385.3 (Metric Tons)	0.01 (Metric Tons)	0.001 (Metric Tons)	0.2 (Metric Tons)	0.2 (Metric Tons)

Unit Name : CP-6
Unit Type : OCS (Other combustion source)
Unit Description :
Other Unit Name :

Common Pipe Details:
Use Ivt Indicator: Y
Maximum Rated Heat Input Capacity: 0.15
Cumulative Maximum Rated Heat Input Capacity:

Emission Details:
Annual Biogenic CO2 Emissions: 0 (metric tons)
Annual Fossil fuel based CO2 Emissions: 34.5 (metric tons)

Tier Fuel Details:

Total CO2 emissions	Total CH4 emissions	Total N2O emissions	Total CH4 emissions CO2e	Total N2O emissions CO2e
34.5 (Metric Tons)	0.00 (Metric Tons)	0.000 (Metric Tons)	0 (Metric Tons)	0 (Metric Tons)

Subpart Q: Iron and Steel Production

CEMS Monitoring Location (CML) Details

Gas Information Details

Gas Name	Carbon Dioxide
Gas Quantity	95,351.3 (Metric Tons)
Own Result?

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

Gas Name	Methane
Gas Quantity	0 (Metric Tons)
Own Result?

Gas Name	Nitrous Oxide
Gas Quantity	0 (Metric Tons)
Own Result?

The values below are total values for units where the CO₂ emissions were calculated using the mass balance methodology
Annual mass of fuel consumed: ()
Average carbon content of fuels: ()
Annual mass of non-fuels consumed: ()
Average carbon content of non-fuels: ()
Annual mass of products and byproducts produced: ()
Average carbon content of byproducts: ()

No Cems Unit Details:

Unit Name: NO 1 BASIC OXYGEN FURNACE
Unit Description:
Unit Type: Basic Oxygen Process Furnace

CO2Emissions: 45516.0 (Metric Tons)

Inputs/Outputs:

Name	Type	Classification	# of Times Carbon Content Substituted	Carbon Content Basis	Other Carbon Content Basis	Annual Quantity Substituted Data Method
				ASTM E1019-08
				ASTM E1019-08
				ASTM E1019-08

Unit Name: NO 2 BASIC OXYGEN FURNACE
Unit Description:
Unit Type: Basic Oxygen Process Furnace

CO2Emissions: 49835.3 (Metric Tons)

Inputs/Outputs:

Name	Type	Classification	# of Times Carbon Content Substituted	Carbon Content Basis	Other Carbon Content Basis	Annual Quantity Substituted Data Method
				ASTM E1019-08
				ASTM E1019-08
				ASTM E1019-08

Flares