First Quarter 2018 and Recent Company Highlights
MagnaChip:

• Announced it will host its Annual Foundry Technology Symposium in Santa Clara, California on May 23, 2018
• Now offers automotive-grade 0.18 micron BCD process technology with up to 100V Operation Voltage
• Announced that Second-Generation 0.13 micron BCD process technology with high-density embedded flash memory is now available to Foundry customers
• Multi-level thick IMD process for capacity with ultra-high breakdown voltage is now available to Foundry customers

Second Quarter 2018 Business Outlook
For the second quarter of 2018, MagnaChip anticipates:

• Revenue to be in the range of $182 million to $188 million, up sequentially 11.6% at the mid-point of the projected range. The guidance for the second quarter compares with revenue of $165.8 million in the first quarter of 2018 and $166.7 million in the second quarter of 2017.
• Despite headwinds, gross profit margin to be in the range of 26% to 28%. This compares to 26.9% in the first quarter of 2018, and 28.0% in the second quarter of 2017.

First Quarter 2018 Conference Call
The conference call will be webcast live today and also is available by dialing toll-free at 1-844-536-5472. International call-in participants can dial toll-free at 1-614-999-9318. The conference ID number is 1777267. Participants are encouraged to initiate their calls at least 10 minutes in advance of the 5 p.m. EDT start time today to ensure a timely connection. The webcast and earnings release will be accessible at www.magnachip.com. A replay of the conference call will be available the same day and will run for 72 hours. The replay dial-in numbers are 1-404-537-3406 or toll-free at 1-855-859-2056. The access code is 1777267.

About MagnaChip Semiconductor Corporation
MagnaChip is a designer and manufacturer of analog and mixed-signal semiconductor platform solutions for communications, IoT, consumer, industrial and automotive applications. The Company's Standard Products Group and Foundry Services Group provide a broad range of standard products and manufacturing services to customers worldwide. MagnaChip, with over 30 years of operating history, owns a portfolio of approximately 3,200 registered patents and pending applications, and has extensive engineering, design and manufacturing process expertise. For more information, please visit www.magnachip.com. Information on or accessible through, MagnaChip's website is not a part of, and is not incorporated into, this release.

Safe Harbor for Forward-Looking Statements
Information in this release 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. These statements include statements about our future operating and financial performance, including second quarter 2018 revenue and gross profit expectations. All forward-looking statements included in this release are based upon information available to MagnaChip as of the date of this release, which may change, and we assume no obligation to update any such forward-looking statements. These statements are not guarantees of future performance and actual results could differ materially from our current expectations. Factors that could cause or contribute to such differences include general economic conditions, the impact of competitive products and pricing, timely design acceptance by our customers, timely introduction of new products and technologies, ability to ramp new products into volume production, industry wide shifts in supply and demand for semiconductor products, industry and/or company overcapacity, effective and cost efficient utilization of manufacturing capacity, financial stability in foreign markets and the impact of foreign exchange rates, unanticipated costs and expenses or the inability to identify expenses which can be eliminated, compliance with U.S. and international trade and export laws and regulations by us and our distributors, and other risks detailed from time to time in MagnaChip's filings with the SEC, including our Form 10-K filed on February 22, 2018 and subsequent registration statements, amendments or other reports that we may file from time to time with the SEC and/or make available on our website. MagnaChip assumes no obligation and does not intend to update the forward-looking statements provided, whether as a result of new information, future events or otherwise.