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SK hynix Inc. Reports Third Quarter 2021 Results October 26 , 2021 Seoul , October 26 , 2021 SK hynix Inc. ( or ' the Company ' , www.skhynix.com ) today announced financial results for its third quarter 2021 ended on September 30 , 2021. The consolidated revenue of the third quarter 2021 was 11.805 trillion won , while the operating profit amounted to 4.172 trillion won and the net income 3.315 trillion won . Operating margin for the quarter was 35 % and net margin was 28 % . SK hynix achieved record high quarterly revenue since its foundation , and regained operating profit more than 4 trillion won after two and a half years since the fourth quarter of 2018. The increased semiconductor memory demand for server and smartphone ( mobile ) applications , alongside the improved product prices , contributed to the Company's record - breaking quarterly revenue . During last quarter SK hynix managed to increase the yield rate of its mainstream products including 1znm DRAM and 128 - layer 4D NAND Flash , while expand their proportion among the Company's production volume . As a result , with enhanced cost competitiveness the Company's quarterly operating profit exceeded 4 trillion won . Notably , SK hynix's NAND Flash business has finally turned to a surplus in the third quarter . Kevin ( Jongwon ) Noh , Executive Vice President and Head of Corporate Center ( CFO ) at SK hynix , said , “ Despite the concerns over recent global supply chain disruptions , the remarkable quarterly performance signals that the semiconductor memory industry is continuing its growth momentum . " SK hynix forecasts market demand for semiconductor memory will grow consistently , and will react flexibly to market condition changes and focus on securing profitability . At the same time , SK hynix expects to enhance the competitiveness of its NAND Flash business , which has recently