2021 Sustainability Report was written according to the Global Reporting Initiative (GRI) Standards that reflect the global best practices for international sustainability reporting. The report was also verified by an independent third party institution, DNV, to ensure objectivity and transparency of the content. In addition, we are actively responding to the international community’s request for strengthened ESG disclosure by reflecting TCFD (Taskforce on Climate-related Financial Disclosures) Framework and three industry standards (Iron & Steel Producers, Machinery & Goods, Oil & Gas) from SASB (Sustainability Accounting Standard Board) in order to systematically manage climate change risks.