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Amkor Technology Second Quarter Highlights ● Amkor Technology Reports Financial Results for the Second Quarter 2021 Record net sales $ 1.41 billion , up 20 % year - on - year Gross margin 19.4 % , operating income margin 11.0 % Results Record second quarter net income $ 126 million , record second quarter earnings per diluted share $ 0.51 EBITDA $ 295 million TEMPE , Ariz . - July 26 , 2021 - Amkor Technology , Inc. ( NASDAQ : AMKR ) , a leading provider of semiconductor packaging and test services , today announced financial results for the second quarter ended June 30 , 2021 . " Second quarter revenue grew 6 % sequentially to a new all - time record of $ 1.41 billion . Strong demand for Advanced SiP in the Communications and Consumer end markets drove revenue above the high end of expectations , " said Giel Rutten , Amkor's president and chief executive officer . " Our Automotive and Industrial business grew 33 % year - on - year to a record $ 300 million , overcoming several supply chain challenges . " Net sales Gross margin Operating income Operating income margin Net income attributable to Amkor Earnings per diluted share EBITDA ( 1 ) Q1 2021 ( $ in millions , except per share data ) $ 1,407 $ 1,326 19.4 % 20.0 % $ 155 $ 144 11.0 % 10.9 % Q2 2021 $ 126 $ 0.51 $ 295 $ 120 $ 0.49 $ 280 Q2 2020 At June 30 , 2021 , total cash and short - term investments was $ 0.9 billion , and total debt was $ 1.1 billion . $ 1,173 16.4 % $ 87 7.4 % $ 55 $ 0.23 $ 209 ( 1 ) EBITDA is a non - GAAP financial measure . The reconciliation to the most directly comparable GAAP financial measure is included below under " Selected Operating Data . ” " Strong utilization and growth in Advanced SiP drove solid profitability . Operating income margin expanded 365 basis points year - on - year to 11 % , and EPS more than doubled to a second quarter record of $ 0.51 , " said Megan Faust , Amkor's executive vice president and chief financial officer . " EBITDA grew over 40 % year - on - year , and our solid financial position provides flexibility to continue to invest in growth opportunities . ,, We paid a quarterly dividend of $ 0.04 per share , representing a dividend payment of $ 9.8 million in the aggregate , on June 28 , 2021 to stockholders of record as of June 7 , 2021. The declaration and payment of future dividends , as well as any record and payment dates , are subject to the approval of the Board of Directors .