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GHG inventory
CSC complied with the GHG Inventory and Registration Guideline of the Environmental Protection Administration (EPA), Executive Yuan, ISO 14064, the international standard specification on greenhouse gas emissions, and guideline documents enacted by international organizations such as IPCC, WSA, and WBCSD to produce its professional GHG inventory system. CSC also complies with ISO standards to enact the “Regulations for the Management of GHG.” In addition to internal auditing, CSC's GHG emission data has been audited by a third-party accreditation agency to acquire declaration statements on a yearly basis. CSC also incorporates with the EPA to report inventory data to the national GHG registration platform.

GHG emission trend: According to the internal audit, the total GHG emission and intensity (the GHG emission of a unit product) in 2013 were 20.97 million tons of CO2e and 2.412 tons of CO2e/TCS, respectively

 

 

CSC's emission intensity has been gradually and slightly increased because:

  • Improvement of product processing: In order to provide high-grade and high value-added steel, CSC continuously increased downstream production lines of cold-rolling and coating, resulting in a slight reduction of the total production volume of finished products and an increase of total CO2e.
  • Increase of environmental facilities: CSC actively invested in prevention and control facilities for various pollutants including dust arrestor and scrubbing tower to treat and recycle effluent with UF and RO as well as for the production of iron reduced from solid waste of rotary hearth furnace.
  • Reduced capacity utilization: Due to economic slowdown in 2013, the production of billet was reduced to cause low energy efficacy and that brought negative impacts to emission intensity.
  • Inclusion of CO2e generated from steam sold to external parties: Because of the dramatic increase of steam sold to third parties in the region in recent years and the fact that current inventory regulations do not allow the deduction of CO2e generated from steam production sold to the third parties, CSC has to absorb the relevant CO2e (in the future, it is expected that reduction will be done through the acquisition of an external deduction allowance.)

    • According to the categories in the 2006 GHG Inventory Guideline released by the Intergovernmental Panel on Climate Change (IPCC), CSC had Scope 1 GHGe from mainly the manufacturing process accounting for 89.59% and energy consumption of 10.36% (less than 0.05% of dissipation and other emissions). CSC’s Scope 2 GHGe all came from purchased electricity. Due to the increase of electricity consumption of the downstream rolling and coating production line, energy sold to external users, and environmental protection facilities, the rise of electricity purchased became very significant resulting in the indirect emissions of CSC gradually increasing from 4.8% in 2006 to 6.11% in 2013.