GHG Summary Report

CO2 equivalent emissions from facility subparts C-II, SS, and TT (metric tons):61,188.3
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:2019-01-01
GHG Report End Date:2019-12-31
Description of Changes to Calculation Methodology:
Plant Code Indicator:N
Primary NAICS Code:331210
Second Primary NAICS Code:

Parent Company Details:

Parent Company Name:TENARIS
Address:2200 W Loop S Ste 800, Houston, TX 77027
Percent Ownership Interest:100

Subpart C: General Stationary Fuel Combustion

Gas Information Details

Gas Name	Carbon Dioxide
Gas Quantity	61,125.3 (Metric Tons)
Own Result?

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

Gas Name	Methane
Gas Quantity	1.15 (Metric Tons)
Own Result?

Gas Name	Nitrous Oxide
Gas Quantity	0.115 (Metric Tons)
Own Result?

Unit Details:

Unit Name : Austenitizing Furnace
Unit Type : F (Furnace)
Unit Description :

Individual Unit Details:
Use Ivt Indicator: N
Maximum Rated Heat Input Capacity: 65.4 (mmBtu/hr)

Emission Details:
Annual CO₂ mass emissions from sorbent: 0 (Metric Tons)
Annual Biogenic CO2 Emissions: 0 (metric tons)

Tier Fuel Details:

Fuel : Natural Gas (Weighted U.S. Average)
Tier Name : Tier 1 (Equation C-1b, natural gas billing in mmBtu)
Tier Methodology Start Date : 2019-01-01
Tier Methodology End Date : 2019-12-31

Fuel Emission Details :

Total CO2 emissions	Total CH4 emissions	Total N2O emissions	Total CH4 emissions CO2e	Total N2O emissions CO2e
16882.3 (Metric Tons)	0.32 (Metric Tons)	0.032 (Metric Tons)	8 (Metric Tons)	9.5 (Metric Tons)

Equation C1b/C8b Inputs :
Natural Gas Usage : 318174 (mmBtu/year)

Unit Name : Rotary Hearth Furnace
Unit Type : F (Furnace)
Unit Description :

Individual Unit Details:
Use Ivt Indicator: N
Maximum Rated Heat Input Capacity: 228.17 (mmBtu/hr)

Emission Details:
Annual CO₂ mass emissions from sorbent: 0 (Metric Tons)
Annual Biogenic CO2 Emissions: 0 (metric tons)

Tier Fuel Details:

Total CO2 emissions	Total CH4 emissions	Total N2O emissions	Total CH4 emissions CO2e	Total N2O emissions CO2e
34694.8 (Metric Tons)	0.65 (Metric Tons)	0.065 (Metric Tons)	16.4 (Metric Tons)	19.5 (Metric Tons)

Equation C1b/C8b Inputs :
Natural Gas Usage : 653879 (mmBtu/year)

Unit Name : Tempering Furnace
Unit Type : F (Furnace)
Unit Description :

Individual Unit Details:
Use Ivt Indicator: N
Maximum Rated Heat Input Capacity: 50.87 (mmBtu/hr)

Emission Details:
Annual CO₂ mass emissions from sorbent: 0 (Metric Tons)
Annual Biogenic CO2 Emissions: 0 (metric tons)

Tier Fuel Details:

Total CO2 emissions	Total CH4 emissions	Total N2O emissions	Total CH4 emissions CO2e	Total N2O emissions CO2e
9514.4 (Metric Tons)	0.18 (Metric Tons)	0.018 (Metric Tons)	4.5 (Metric Tons)	5.3 (Metric Tons)

Equation C1b/C8b Inputs :
Natural Gas Usage : 179314 (mmBtu/year)

Unit Name : RTO CAS1
Unit Type : RTO (Regenerative thermal oxidizer)
Unit Description :

Individual Unit Details:
Use Ivt Indicator: N
Maximum Rated Heat Input Capacity: 3150 (mmBtu/hr)

Emission Details:
Annual CO₂ mass emissions from sorbent: 0 (Metric Tons)
Annual Biogenic CO2 Emissions: 0 (metric tons)

Tier Fuel Details:

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

Equation C1b/C8b Inputs :
Natural Gas Usage : 637.8 (mmBtu/year)