Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2021 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission File Number: 001-34791 Magnachip Semiconductor Corporation (Exact name of registrant as specified in its charter) Delaware 83-04061 ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2021 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission File Number: 001-34791 Magnachip Semiconductor Corporation (Exact name of registrant as specified in its charter) Delaware 83-0406195 (S ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2021 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission File Number: 001-34791 Magnachip Semiconductor Corporation (Exact name of registrant as specified in its charter) Delaware 83-0406195 ( ...

Magnachip Semiconductor (NYSE: MX) MX 3.0: Accelerating Profitable Growth March 2021 1 Forward-Looking Statements Information in this presentation regarding Magnachip's forecasts, business outlook, expectations and beliefs are forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 that involve risks and uncertainties. All forward-looking statements included or incorporated by reference in this presentation, including expectations about estimated historical or f ...

Table of Contents Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-34791 Magnachip Semiconductor Corporation (Exact name of registrant as specified in its charter) Delaware 83-0406195 (State or Other Jurisdiction of Incorporation or Organization) (I.R.S. Employer Identification No.) c/o MagnaChip Semiconductor S.A. 1, Allée Scheffer, ...

Magnachip Semiconductor (NYSE: MX) Q4 2020 Earnings Materials February 17, 2021 1 Forward-Looking Statements Information in this presentation regarding Magnachip's forecasts, business outlook, expectations and beliefs are forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 that involve risks and uncertainties. All forward-looking statements included or incorporated by reference in this presentation, including expectations about estimated historical or future ...

MagnaChip Semiconductor Corporation (NYSE:MX) Q4 2020 Earnings Conference Call February 17, 2021 5:00 PM ET Company Participants So-Yeon Jeong - Head, Investor Relations YJ Kim - Chief Executive Officer Young Woo - Chief Financial Officer Shinyoung Park - Chief Accounting Officer Conference Call Participants Suji Desilva - ROTH Capital Raji Gill - Needham Martin Yang - Oppenheimer. Jon Lopez - Vertical Group Operator Ladies and gentlemen thank you for standing by. And welcome to the Fourth Quarter 2020 Magn ...

Magnachip Semiconductor (NYSE: MX) MX 3.0: Accelerating Profitable Growth January 2021 1 Forward-Looking Statement 2 Information in this presentation regarding Magnachip's forecasts, business outlook, expectations and beliefs are forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 that involve risks and uncertainties. All forward-looking statements included or incorporated by reference in this presentation, including expectations about estimated historical o ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2020 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission File Number: 001-34791 MagnaChip Semiconductor Corporation (Exact name of registrant as specified in its charter) Delaware 83-04061 ...

MagnaChip Semiconductor Corporation (NYSE:MX) Q3 2020 Results Earnings Conference Call October 29, 2020 5:00 PM ET Company Participants So-Yeon Jeong - Head, Investor Relations YJ Kim - Chief Executive Officer Young Woo - Chief Financial Officer Conference Call Participants Raji Gill - Needham Suji Desilva - ROTH Capital Jon Lopez - Vertical Group Operator Good day, ladies and gentlemen, and thank you for standing by. At this time, I would like to welcome everyone to the Quarter Three 2020 MagnaChip Semicon ...