10-Q

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, 2023

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
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

c/o Magnachip Semiconductor, Ltd.

15F, 76 Jikji-daero 436beon-gil, Heungdeok-gu

Cheongju-si, Chungcheongbuk-do, Republic of Korea 28581

(Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code: +82 (2) 6903-3000

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock, par value $0.01 per share	MX	New York Stock Exchange

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    ☒Yes ☐  No

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).    ☒  Yes    ☐  No

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	☒	Accelerated filer	☐
Non-accelerated filer	☐	Smaller reporting company	☐
		Emerging growth company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    ☐  Yes ☒  No

As of April 30, 2023, the registrant had 42,265,480 shares of common stock outstanding.

MAGNACHIP SEMICONDUCTOR CORPORATION AND SUBSIDIARIES

TABLE OF CONTENTS

		Page No.
PART I FINANCIAL INFORMATION		3
Item 1.	Interim Consolidated Financial Statements (Unaudited)	3
	Magnachip Semiconductor Corporation and Subsidiaries Consolidated Balance Sheets as of March 31, 2023 and December 31, 2022	3
	Magnachip Semiconductor Corporation and Subsidiaries Consolidated Statements of Operations for the Three Months Ended March 31, 2023 and 2022	4
	Magnachip Semiconductor Corporation and Subsidiaries Consolidated Statements of Comprehensive Income (Loss) for the Three Months Ended March 31, 2023 and 2022	5
	Magnachip Semiconductor Corporation and Subsidiaries Consolidated Statements of Changes in Stockholders’ Equity for the Three Months Ended March 31, 2023 and 2022	6
	Magnachip Semiconductor Corporation and Subsidiaries Consolidated Statements of Cash Flows for the Three Months Ended March 31, 2023 and 2022	7
	Magnachip Semiconductor Corporation and Subsidiaries Notes to Consolidated Financial Statements	8
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	25
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	42
Item 4.	Controls and Procedures	43
PART II OTHER INFORMATION		44
Item 1.	Legal Proceedings	44
Item 1A.	Risk Factors	44
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	44
Item 3.	Defaults Upon Senior Securities	44
Item 4.	Mine Safety Disclosures	44
Item 5.	Other Information	44
Item 6.	Exhibits	45
SIGNATURES		46

2

PART I—FINANCIAL INFORMATION

Item 1. Interim Consolidated Financial Statements (Unaudited)

MAGNACHIP SEMICONDUCTOR CORPORATION AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS (Unaudited)

	March 31, 2023			December 31, 2022
	(In thousands of U.S. dollars, except share data)
Assets
Current assets
Cash and cash equivalents	$	212,085		$	225,477
Accounts receivable, net		32,143			35,380
Inventories, net		36,360			39,883
Other receivables		5,342			7,847
Prepaid expenses		11,238			10,560
Hedge collateral (Note 7)		2,820			2,940
Other current assets (Note 18)		14,927			15,766
Total current assets		314,915			337,853
Property, plant and equipment, net		104,568			110,747
Operating lease right-of-use assets		5,413			5,265
Intangible assets, net		1,784			1,930
Long-term prepaid expenses		9,101			10,939
Deferred income taxes		37,380			38,324
Other non-current assets		14,683			11,587
Total assets	$	487,844		$	516,645
Liabilities and Stockholders’ Equity
Current liabilities
Accounts payable	$	19,921		$	17,998
Other accounts payable		9,216			9,702
Accrued expenses (Note 6)		17,125			9,688
Accrued income taxes		146			3,154
Operating lease liabilities		1,622			1,397
Other current liabilities		5,261			5,306
Total current liabilities		53,291			47,245
Accrued severance benefits, net		23,608			23,121
Non-current operating lease liabilities		3,996			4,091
Other non-current liabilities		13,596			14,035
Total liabilities		94,491			88,492
Commitments and contingencies (Note 18)
Stockholders’ equity
Common stock, $0.01 par value, 150,000,000 shares authorized, 56,437,182 shares issued and 42,589,315 outstanding at March 31, 2023 and 56,432,449 shares issued and 43,824,575 outstanding at December 31, 2022		564			564
Additional paid-in capital		267,187			266,058
Retained earnings		314,036			335,506
Treasury stock, 13,847,867 shares at March 31, 2023 and 12,607,874 shares at December 31, 2022, respectively		(173,441	)		(161,422	)
Accumulated other comprehensive loss		(14,993	)		(12,553	)
Total stockholders’ equity		393,353			428,153
Total liabilities and stockholders’ equity	$	487,844		$	516,645

The accompanying notes are an integral part of these consolidated financial statements.

3

MAGNACHIP SEMICONDUCTOR CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited)

	Three Months Ended
	March 31, 2023			March 31, 2022
	(In thousands of U.S. dollars, except share data)
Revenues:
Net sales – standard products business	$	51,514		$	94,010
Net sales – transitional Fab 3 foundry services		5,491			10,083
Total revenues		57,005			104,093
Cost of sales:
Cost of sales – standard products business		37,312			56,080
Cost of sales – transitional Fab 3 foundry services		7,599			9,017
Total cost of sales		44,911			65,097
Gross profit		12,094			38,996
Operating expenses:
Selling, general and administrative expenses		12,165			14,163
Research and development expenses		13,298			11,954
Early termination charges		8,449			—
Total operating expenses		33,912			26,117
Operating income (loss)		(21,818	)		12,879
Interest income		2,842			715
Interest expense		(256	)		(111	)
Foreign currency loss, net		(3,430	)		(690	)
Other income (expense), net		(35	)		218
Income (loss) before income tax expense		(22,697	)		13,011
Income tax expense (benefit)		(1,227	)		3,483
Net income (loss)	$	(21,470	)	$	9,528
Basic earnings (loss) per common share—	$	(0.49	)	$	0.21
Diluted earnings (loss) per common share—	$	(0.49	)	$	0.20
Weighted average number of shares—
Basic		43,390,832			45,603,208
Diluted		43,390,832			46,693,294

The accompanying notes are an integral part of these consolidated financial statements.

4

MAGNACHIP SEMICONDUCTOR CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited)

	Three Months Ended
	March 31, 2023			March 31, 2022
	(In thousands of U.S. dollars)
Net income (loss)	$	(21,470	)	$	9,528
Other comprehensive loss
Foreign currency translation adjustments		(1,908	)		(3,045	)
Derivative adjustments
Fair valuation of derivatives		(1,135	)		(1,264	)
Reclassification adjustment for loss on derivatives included in net income (loss)		603			762
Total other comprehensive loss		(2,440	)		(3,547	)
Total comprehensive income (loss)	$	(23,910	)	$	5,981

The accompanying notes are an integral part of these consolidated financial statements.

5

MAGNACHIP SEMICONDUCTOR CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY (Unaudited)

	Common Stock					Additional Paid-In Capital			Retained Earnings			Treasury Stock			Accumulated Other Comprehensive Loss			Total
(In thousands of U.S. dollars, except share data)	Shares			Amount
Three Months Ended March 31, 2023:
Balance at December 31, 2022		43,824,575		$	564	$	266,058		$	335,506		$	(161,422	)	$	(12,553	)	$	428,153
Stock-based compensation		—			—		1,120			—			—			—			1,120
Exercise of stock options		1,400			0		9			—			—			—			9
Settlement of restricted stock units		3,333			0		(0	)		—			—			—			—
Acquisition of treasury stock		(1,239,993	)		—		—			—			(12,019	)		—			(12,019	)
Other comprehensive loss, net		—			—		—			—			—			(2,440	)		(2,440	)
Net loss		—			—		—			(21,470	)		—			—			(21,470	)
Balance at March 31, 2023		42,589,315		$	564	$	267,187		$	314,036		$	(173,441	)	$	(14,993	)	$	393,353
Three Months Ended March 31, 2022:
Balance at December 31, 2021		45,659,304		$	559	$	241,197		$	343,542		$	(130,306	)	$	(2,230	)	$	452,762
Stock-based compensation		—			—		1,638			—			—			—			1,638
Exercise of stock options		151,326			1		1,780			—			—			—			1,781
Settlement of restricted stock units		168,795			2		(2	)		—			—			—			—
Acquisition of treasury stock		(53,464	)		—		—			—			(1,000	)		—			(1,000	)
Accelerated stock repurchase		(1,031,576	)		—		17,217			—			(17,217	)		—			—
Other comprehensive loss, net		—			—		—			—			—			(3,547	)		(3,547	)
Net income		—			—		—			9,528			—			—			9,528
Balance at March 31, 2022		44,894,385		$	562	$	261,830		$	353,070		$	(148,523	)	$	(5,777	)	$	461,162

The accompanying notes are an integral part of these consolidated financial statements.

6

MAGNACHIP SEMICONDUCTOR CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)

	Three Months Ended
	March 31, 2023			March 31, 2022
	(In thousands of U.S. dollars)
Cash flows from operating activities
Net income (loss)	$	(21,470	)	$	9,528
Adjustments to reconcile net income (loss) to net cash provided by operating activities
Depreciation and amortization		4,357			3,891
Provision for severance benefits		2,330			1,670
Loss on foreign currency, net		9,082			6,380
Provision for inventory reserves		1,138			145
Stock-based compensation		1,120			1,638
Other, net		237			161
Changes in operating assets and liabilities
Accounts receivable, net		2,973			(1,213	)
Inventories		1,062			1,456
Other receivables		2,376			667
Other current assets		1,456			(6,829	)
Accounts payable		1,904			538
Other accounts payable		(1,424	)		(702	)
Accrued expenses		7,600			187
Accrued income taxes		(2,923	)		(2,346	)
Other current liabilities		(596	)		(711	)
Other non-current liabilities		(169	)		(73	)
Payment of severance benefits		(871	)		(1,389	)
Other, net		(306	)		(178	)
Net cash provided by operating activities		7,876			12,820
Cash flows from investing activities
Proceeds from settlement of hedge collateral		1,155			1,829
Payment of hedge collateral		(1,093	)		(2,891	)
Purchase of property, plant and equipment		(135	)		(944	)
Payment for intellectual property registration		(74	)		(59	)
Payment of guarantee deposits		(3,482	)		(79	)
Other, net		19			2
Net cash used in investing activities		(3,610	)		(2,142	)
Cash flows from financing activities
Proceeds from exercise of stock options		9			1,781
Acquisition of treasury stock		(12,264	)		(830	)
Repayment of financing related to water treatment facility arrangement		(126	)		(134	)
Repayment of principal portion of finance lease liabilities		(24	)		(16	)
Net cash provided by (used in) financing activities		(12,405	)		801
Effect of exchange rates on cash and cash equivalents		(5,253	)		(6,105	)
Net increase (decrease) in cash and cash equivalents		(13,392	)		5,374
Cash and cash equivalents at beginning of period		225,477			279,547
Cash and cash equivalents at end of period	$	212,085		$	284,921
Supplemental cash flow information
Cash paid for income taxes	$	2,644		$	5,421
Non-cash investing activities
Property, plant and equipment additions in other accounts payable	$	629		$	524
Non-cash financing activities
Acquisition of treasury stock to satisfy the tax withholding obligations in connection with equity-based compensation	$	—		$	996
Unsettled common stock repurchases	$	401		$	—

The accompanying notes are an integral part of these consolidated financial statements.

7

MAGNACHIP SEMICONDUCTOR CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(TABULAR DOLLARS IN THOUSANDS, EXCEPT SHARE DATA)

1. Business, Basis of Presentation and Significant Accounting Policies

Business

Magnachip Semiconductor Corporation (together with its subsidiaries, the “Company”) is a designer and manufacturer of analog and mixed-signal semiconductor platform solutions for communications, Internet of Things (“IoT”) applications, consumer, computing, industrial and automotive applications.

The Company’s standard products business includes its Display Solutions and Power Solutions business lines. The Company’s Display Solutions products provide panel display solutions to major suppliers of large and small rigid and flexible panel displays, and a wide range of applications including smartphones, TVs, automotive and IT applications such as monitors, notebook PCs, tablet PCs as well as AR/VRs. The Company’s Power Solutions products include discrete and integrated circuit solutions for power management in communications, consumer, computing, servers, automotive, and industrial applications.

On September 1, 2020, the Company completed the sale of the Company’s Foundry Services Group business and its fabrication facility located in Cheongju, Korea, known as “Fab 4”. Following the consummation of the sale, and for up to three years, the Company is expected to provide transitional foundry services associated with its fabrication facility located in Gumi, Korea, known as “Fab 3”, at an agreed upon cost plus mark-up (the “Transitional Fab 3 Foundry Services”).

Basis of Presentation

The accompanying unaudited interim consolidated financial statements of the Company have been prepared in accordance with generally accepted accounting principles in the United States of America (“U.S. GAAP”). These interim consolidated financial statements include normal recurring adjustments and the elimination of all intercompany accounts and transactions which are, in the opinion of management, necessary to provide a fair statement of the Company’s financial condition and results of operations for the periods presented. These interim consolidated financial statements are presented in accordance with Accounting Standards Codification (“ASC”) 270, “Interim Reporting” and, accordingly, do not include all of the information and note disclosures required by U.S. GAAP for complete financial statements, except for the changes below. The results of operations for the three months ended March 31, 2023 are not necessarily indicative of the results to be expected for a full year or for any other periods.

The December 31, 2022 balance sheet data was derived from the Company’s audited financial statements, but does not include all disclosures required by U.S. GAAP. The interim consolidated financial statements should be read in conjunction with the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2022.

There have been no material changes to the Company’s significant accounting policies as of and for the three months ended March 31, 2023 as compared to the significant accounting policies described in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2022.

8

2. Inventories

Inventories as of March 31, 2023 and December 31, 2022 consist of the following (in thousands):

	March 31, 2023			December 31, 2022
Finished goods	$	5,523		$	6,799
Semi-finished goods and work-in-process		39,427			40,265
Raw materials		6,351			7,460
Materials in-transit		—			36
Less: inventory reserve		(14,941	)		(14,677	)
Inventories, net	$	36,360		$	39,883

Changes in inventory reserve for the three months ended March 31, 2023 and 2022 are as follows (in thousands):

	Three Months Ended
	March 31, 2023			March 31, 2022
Beginning balance	$	(14,677	)	$	(5,730	)
Change in reserve
Inventory reserve charged to costs of sales		(2,584	)		(1,607	)
Sale of previously reserved inventory		1,476			1,452
		(1,108	)		(155	)
Write off		415			211
Translation adjustments		429			119
Ending balance	$	(14,941	)	$	(5,555	)

Inventory reserve represents the Company’s best estimate in value lost due to excessive inventory level, physical deterioration, obsolescence, changes in price levels, or other causes based on individual facts and circumstances. Inventory reserve relates to inventory items including finished goods, semi-finished goods, work-in-process and raw materials. Write off of this reserve is recognized only when the related inventory has been disposed or scrapped.

9

3. Property, Plant and Equipment

Property, plant and equipment as of March 31, 2023 and December 31, 2022 are comprised of the following (in thousands):

	March 31, 2023			December 31, 2022
Buildings and related structures	$	24,214		$	24,780
Machinery and equipment		134,843			137,666
Finance lease right-of-use assets		707			389
Others		33,529			33,890
		193,293			196,725
Less: accumulated depreciation		(102,768	)		(101,502	)
Land		12,670			13,034
Construction in progress		1,373			2,490
Property, plant and equipment, net	$	104,568		$	110,747

Aggregate depreciation expenses totaled $4,193 thousand and $3,706 thousand for the three months ended March 31, 2023 and 2022, respectively.

4. Intangible Assets

Intangible assets as of March 31, 2023 and December 31, 2022 are comprised of the following (in thousands):

	March 31, 2023
	Gross amount		Accumulated amortization			Net amount
Intellectual property assets	$	8,916	$	(7,132	)	$	1,784
Intangible assets	$	8,916	$	(7,132	)	$	1,784

	December 31, 2022
	Gross amount		Accumulated amortization			Net amount
Intellectual property assets	$	9,111	$	(7,181	)	$	1,930
Intangible assets	$	9,111	$	(7,181	)	$	1,930

Aggregate amortization expenses for intangible assets totaled $164 thousand and $185 thousand for the three months ended March 31, 2023 and 2022, respectively.

10

5. Leases

The Company has operating and finance leases for buildings and other assets such as vehicles and office equipment. The Company’s leases have remaining lease terms ranging from 1 year to 5 years.

The tables below present financial information related to the Company’s leases.

Supplemental balance sheets information related to leases as of March 31, 2023 and December 31, 2022 are as follows (in thousands):

Leases	Classification	March 31, 2023		December 31, 2022
Assets
Operating lease	Operating lease right-of-use assets	$	5,413	$	5,265
Finance lease	Property, plant and equipment, net		436		143
Total lease assets		$	5,849	$	5,408
Liabilities
Current
Operating	Operating lease liabilities	$	1,622	$	1,397
Finance	Other current liabilities		90		90
Non-current
Operating	Non-current operating lease liabilities		3,996		4,091
Finance	Other non-current liabilities		364		63
Total lease liabilities		$	6,072	$	5,641

The following table presents the weighted average remaining lease term and discount rate:

	March 31, 2023			December 31, 2022
Weighted average remaining lease term
Operating leases	3.4 years			3.7 years
Finance leases	4.1 years			2.4 years
Weighted average discount rate
Operating leases		6.6	%		6.6	%
Finance leases		7.7	%		7.6	%

The components of lease cost included in the Company’s consolidated statements of operations, are as follows (in thousands):

	Three Months Ended
	March 31, 2023		March 31, 2022
Operating lease cost	$	555	$	569
Finance lease cost
Amortization of right-of-use assets		32		16
Interest on lease liabilities		7		2
Total lease cost	$	594	$	587

The above table does not include an immaterial cost of short-term leases for the three months ended March 31, 2023 and 2022.

11

Other lease information is as follows (in thousands):

	Three Months Ended
	March 31, 2023		March 31, 2022
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	$	567	$	569
Operating cash flows from finance leases		7		2
Financing cash flows from finance leases		24		16

The aggregate future lease payments for operating and finance leases as of March 31, 2023 are as follows (in thousands):

	Operating Leases			Finance Leases
Remainder of 2023	$	1,448		$	91
2024		1,925			122
2025		1,419			121
2026		937			108
2027		644			95
Total future lease payments		6,373			537
Less: Imputed interest		(755	)		(83	)
Present value of future payments	$	5,618		$	454

6. Accrued Expenses

Accrued expenses as of March 31, 2023 and December 31, 2022 are comprised of the following (in thousands):

	March 31, 2023		December 31, 2022
Payroll, benefits and related taxes, excluding severance benefits	$	14,475	$	7,620
Withholding tax attributable to intercompany interest income		473		43
Outside service fees		1,625		1,642
Others		552		383
Accrued expenses	$	17,125	$	9,688

Payroll, benefits and related taxes payable as of March 31, 2023 in the table above includes termination related charges under the voluntary resignation program (the “Program”) of $8,449 thousand, which are expected to be paid in the second quarter of 2023.

See “Note 10. Early Termination Charges” for more information regarding the Program.

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7. Derivative Financial Instruments

The Company’s Korean subsidiary from time to time has entered into zero cost collar contracts to hedge the risk of changes in the functional-currency-equivalent cash flows attributable to currency rate changes on U.S. dollar denominated revenues.

Details of the zero cost collar contracts as of March 31, 2023 are as follows (in thousands):

Date of transaction	Total notional amount		Month of settlement
January 04, 2022	$	15,000	April 2023 to June 2023
March 07, 2022	$	24,000	July 2023 to December 2023
April 27, 2022	$	33,000	April 2023 to December 2023
March 08, 2023	$	18,000	July 2023 to December 2023

Details of the zero cost collar contracts as of December 31, 2022 are as follows (in thousands):

Date of transaction	Total notional amount		Month of settlement
January 04, 2022	$	30,000	January 2023 to June 2023
March 07, 2022	$	24,000	July 2023 to December 2023
April 27, 2022	$	42,000	January 2023 to December 2023

The zero cost collar contracts qualify as cash flow hedges under ASC 815, “Derivatives and Hedging,” since at both the inception of the contracts and on an ongoing basis, the hedging relationship was and is expected to be highly effective in achieving offsetting cash flows attributable to the hedged risk during the term of the contracts.

The fair values of the Company’s outstanding zero cost collar contracts recorded as assets and liabilities as of March 31, 2023 and December 31, 2022 are as follows (in thousands):

Derivatives designated as hedging instruments:		March 31, 2023		December 31, 2022
Asset Derivatives:
Zero cost collars	Other current assets	$	2	$	—
Liability Derivatives:
Zero cost collars	Other current liabilities	$	2,641	$	2,015

Offsetting of derivative assets and liabilities as of March 31, 2023 is as follows (in thousands):

	Gross amounts of recognized Assets/liabilities		Gross amounts offset in the balance sheets		Net amounts of Assets/liabilities presented in the balance sheets		Gross amounts not offset in the balance sheets					Net amount
As of March 31, 2023							Financial instruments		Cash collateral pledged
Asset Derivatives:
Zero cost collars	$	2	$	—	$	2	$	—	$	—		$	2
Liability Derivatives:
Zero cost collars	$	2,641	$	—	$	2,641	$	—	$	(1,820	)	$	821

Offsetting of derivative liabilities as of December 31, 2022 is as follows (in thousands):

	Gross amounts of recognized liabilities		Gross amounts offset in the balance sheets		Net amounts of liabilities presented in the balance sheets		Gross amounts not offset in the balance sheets					Net amount
As of December 31, 2022							Financial instruments		Cash collateral pledged
Liability Derivatives:
Zero cost collars	$	2,015	$	—	$	2,015	$	—	$	(1,940	)	$	75

13

For derivative instruments that are designated and qualify as cash flow hedges, gains or losses on the derivative aside from components excluded from the assessment of effectiveness are reported as a component of accumulated other comprehensive income or loss (“AOCI”) and reclassified into earnings in the same period or periods during which the hedged transaction affects earnings. Gains and losses on the derivative, representing hedge components excluded from the assessment of effectiveness, are recognized in current earnings.

The following table summarizes the impact of derivative instruments on the consolidated statements of operations for the three months ended March 31, 2023 and 2022 (in thousands):

Derivatives in ASC 815 Cash Flow Hedging Relationships	Amount of Loss Recognized in AOCI on Derivatives						Location/Amount of Loss Reclassified from AOCI Into Statement of Operations							Location/Amount of Loss Recognized in Statement of Operations on Derivatives
	Three Months Ended March 31,							Three Months Ended March 31,							Three Months Ended March 31,
	2023			2022				2023			2022				2023			2022
Zero cost collars	$	(1,135	)	$	(1,264	)	Net sales	$	(603	)	$	(762	)	Other income, net	$	(54	)	$	(129	)
	$	(1,135	)	$	(1,264	)		$	(603	)	$	(762	)		$	(54	)	$	(129	)

As of March 31, 2023, the amount expected to be reclassified from accumulated other comprehensive loss into loss within the next 12 months is $1,757 thousand.

The Company set aside cash deposit to the counterparty, Standard Chartered Bank Korea Limited (“SC”), as required for the zero cost collar contracts. This cash deposit is recorded as hedge collateral on the consolidated balance sheets. Cash deposits as of March 31, 2023 and December 31, 2022 are as follows (in thousands):

Counterparty	March 31, 2023		December 31, 2022
SC	$	1,000	$	1,000
Total	$	1,000	$	1,000

The Company is required to deposit additional cash collateral with Nomura Financial Investment (Korea) Co., Ltd. (“NFIK”) and SC for any exposure in excess of $500 thousand. As of March 31, 2023, $1,820 thousand of additional cash collateral was required by NFIK, and recorded as hedge collateral on the consolidated balance sheet. As of December 31, 2022, $1,840 thousand and $100 thousand of additional cash collateral were required by NFIK and SC, respectively, and recorded as hedge collateral on the consolidated balance sheet.

These zero cost collar contracts may be terminated by the counterparties if the Company’s total cash and cash equivalents is less than $30,000 thousand at the end of a fiscal quarter, unless a waiver is obtained.

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8. Fair Value Measurements

Fair Value of Financial Instruments

As of March 31, 2023, the following table represents the Company’s assets and liabilities measured at fair value on a recurring basis and the basis for that measurement (in thousands):

	Carrying Value March 31, 2023		Fair Value Measurement March 31, 2023		Quoted Prices in Active Markets for Identical Liability (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Derivative assets (other current assets)	$	2	$	2		—	$	2		—
Liabilities:
Derivative liabilities (other current liabilities)	$	2,641	$	2,641		—	$	2,641		—

As of December 31, 2022, the following table represents the Company’s liabilities measured at fair value on a recurring basis and the basis for that measurement (in thousands):

	Carrying Value December 31, 2022		Fair Value Measurement December 31, 2022		Quoted Prices in Active Markets for Identical Liability (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Liabilities:
Derivative liabilities (other current liabilities)	$	2,015	$	2,015		—	$	2,015		—

Items not reflected in the table above include cash equivalents, accounts receivable, other receivables, accounts payable, and other accounts payable, fair value of which approximate carrying values due to the short-term nature of these instruments. The fair value of assets and liabilities whose carrying value approximates fair value is determined using Level 2 inputs.

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9. Accrued Severance Benefits

The majority of accrued severance benefits are for employees in the Company’s Korean subsidiary. Pursuant to the Employee Retirement Benefit Security Act of Korea, eligible employees and executive officers with one or more years of service are entitled to severance benefits upon the termination of their employment based on their length of service and rate of pay. As of March 31, 2023, 97% of all employees of the Company were eligible for severance benefits.

Changes in accrued severance benefits are as follows (in thousands):

	Three Months Ended
	March 31, 2023			March 31, 2022
Beginning balance	$	48,496		$	51,567
Provisions		2,330			1,670
Severance payments		(871	)		(1,389	)
Translation adjustments		(1,381	)		(1,077	)
		48,574			50,771
Less: Cumulative contributions to severance insurance deposit accounts		(24,747	)		(17,954	)
The National Pension Fund		(40	)		(50	)
Group severance insurance plan		(179	)		(195	)
Accrued severance benefits, net	$	23,608		$	32,572

The severance benefits funded through the Company’s National Pension Fund and group severance insurance plan will be used exclusively for payment of severance benefits to eligible employees. These amounts have been deducted from the accrued severance benefit balance.

Beginning in July 2018, the Company contributes to certain severance insurance deposit accounts a certain percentage of severance benefits that are accrued for eligible employees for their services from January 1, 2018 pursuant to Employee Retirement Benefit Security Act of Korea. These accounts consist of time deposits and other guaranteed principal and interest, and are maintained at insurance companies, banks or security companies for the benefit of employees. The Company deducts the contributions made to these severance insurance deposit accounts from its accrued severance benefits.

The Company is liable to pay the following future benefits to its non-executive employees upon their normal retirement age (in thousands):

	Severance benefit
Remainder of 2023	$	634
2024		906
2025		1,502
2026		1,829
2027		1,718
2028		3,699
2029 – 2033		21,043

The above amounts were determined based on the non-executive employees’ current salary rates and the number of service years that will be accumulated upon their retirement dates. These amounts do not include amounts that might be paid to non-executive employees that will cease working with the Company before their normal retirement ages.

Korea’s mandatory retirement age is 60 years of age or older under the Employment Promotion for the Aged Act. The Company sets the retirement age of employees at 60.

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10. Early Termination Charges

During the first quarter of 2023, the Company commenced the Program, which was available for the employees with more than 20 years of service. For the three months ended March 31, 2023, the Company recorded in its consolidated statement of operations $8,449 thousand of termination related charges as “early termination charges”, which are expected to be paid during the second quarter of 2023.

11. Foreign Currency Loss, Net

Net foreign currency gain or loss includes non-cash translation gain or loss associated with intercompany balances. A substantial portion of the Company’s net foreign currency gain or loss is non-cash translation gain or loss associated with intercompany long-term loans to the Company’s Korean subsidiary. The loans are denominated in U.S. dollars and are affected by changes in the exchange rate between the Korean won and the U.S. dollar. As of March 31, 2023 and December 31, 2022, the outstanding intercompany loan balances including accrued interest between the Korean subsidiary and the Dutch subsidiary were $301,860 thousand and $310,988 thousand, respectively. The Korean won to U.S. dollar exchange rates were 1,303.8:1 and 1,267.3:1 using the first base rate as of March 31, 2023 and December 31, 2022, respectively, as quoted by the KEB Hana Bank.

12. Income Taxes

The Company and its subsidiaries file income tax returns in Korea, Japan, Taiwan, the U.S. and in various other jurisdictions. The Company is subject to income or non-income tax examinations by tax authorities of these jurisdictions for all open tax years.

For the three months ended March 31, 2023, the Company recorded an income tax benefit of $1,227 thousand, primarily related to its primary operating entity in Korea based on the estimated taxable loss for the respective period.

For the three months ended March 31, 2022, the Company recorded an income tax expense of $3,483 thousand, primarily related to its primary operating entity in Korea based on the estimated taxable income for the respective period.

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13. Geographic and Other Information

The following sets forth information relating to the single operating segment (in thousands):

	Three Months Ended
	March 31, 2023		March 31, 2022
Revenues
Standard products business
Display Solutions	$	10,841	$	29,185
Power Solutions		40,673		64,825
Total standard products business	$	51,514	$	94,010
Transitional Fab 3 foundry services		5,491		10,083
Total revenues	$	57,005	$	104,093

	Three Months Ended
	March 31, 2023			March 31, 2022
Gross Profit
Standard products business	$	14,202		$	37,930
Transitional Fab 3 foundry services		(2,108	)		1,066
Total gross profit	$	12,094		$	38,996

The following is a summary of net sales—standard products business (which does not include the Transitional Fab 3 Foundry Services) by geographic region, based on the location to which the products are billed (in thousands):

	Three Months Ended
	March 31, 2023		March 31, 2022
Korea	$	16,496	$	31,030
Asia Pacific (other than Korea)		31,901		58,260
United States		1,045		2,864
Europe		2,072		1,856
Total	$	51,514	$	94,010

For the three months ended March 31, 2023 and 2022, of the Company’s net sales – standard products business in Asia Pacific (other than Korea), net sales – standard products business in China and Hong Kong together represented 57.9% and 71.1%, respectively, and net sales—standard products business in Vietnam represented 17.8% and 14.4%, respectively.

Net sales from the Company’s top ten largest customers in the standard products business (which does not include the Transitional Fab 3 Foundry Services) accounted for 71% and 72% for the three months ended March 31, 2023 and 2022, respectively.

For the three months ended March 31, 2023, the Company had two customers that represented 16.4% and 13.7% of its net sales—standard products business, respectively. For the three months ended March 31, 2022, the Company had two customers that represented 25.5% and 12.9% of its net sales—standard products business, respectively.

As of March 31, 2023, two customers of the Company’s standard products business accounted for 22.3% and 14.3% of its accounts receivable – standard products business (which does not include the Transitional Fab 3 Foundry Services), respectively. As of December 31, 2022, two customers of the Company’s standard products business accounted for 25.1% and 15.2% of its accounts receivable – standard products business (which does not include the Transitional Fab 3 Foundry Services), respectively.

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14. Accumulated Other Comprehensive Loss

Accumulated other comprehensive loss consists of the following as of March 31, 2023 and December 31, 2022, respectively (in thousands):

	March 31, 2023			December 31, 2022
Foreign currency translation adjustments	$	(13,236	)	$	(11,328	)
Derivative adjustments		(1,757	)		(1,225	)
Total	$	(14,993	)	$	(12,553	)

Changes in accumulated other comprehensive loss for the three months ended March 31, 2023 and 2022 are as follows (in thousands):

Three Months Ended March 31, 2023	Foreign currency translation adjustments			Derivative adjustments			Total
Beginning balance	$	(11,328	)	$	(1,225	)	$	(12,553	)
Other comprehensive loss before reclassifications		(1,908	)		(1,135	)		(3,043	)
Amounts reclassified from accumulated other comprehensive loss		—			603			603
Net current-period other comprehensive loss		(1,908	)		(532	)		(2,440	)
Ending balance	$	(13,236	)	$	(1,757	)	$	(14,993	)

Three Months Ended March 31, 2022	Foreign currency translation adjustments			Derivative adjustments			Total
Beginning balance	$	(770	)	$	(1,460	)	$	(2,230	)
Other comprehensive loss before reclassifications		(3,045	)		(1,264	)		(4,309	)
Amounts reclassified from accumulated other comprehensive loss		—			762			762
Net current-period other comprehensive loss		(3,045	)		(502	)		(3,547	)
Ending balance	$	(3,815	)	$	(1,962	)	$	(5,777	)

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15. Stock Repurchases

Accelerated Stock Repurchase Program

On December 21, 2021, the Board of Directors authorized the Company to repurchase up to $75,000 thousand of its outstanding common stock and the Company entered into an accelerated stock repurchase agreement (the “ASR Agreement”) with JPMorgan Chase Bank, National Association (“JPM”) to repurchase an aggregate of $37,500 thousand of its common stock.

Pursuant to the terms of the ASR Agreement dated December 21, 2021, the Company paid to JPM $37,500 thousand in cash and received an initial delivery of 994,695 shares of its common stock in the open market for an aggregate purchase price of $20,073 thousand and a price per share of $20.18 on December 22, 2021.

As of December 31, 2021, the Company accounted for the remaining portion of the ASR Agreement as a forward contract indexed to its own common stock and recorded $17,427 thousand in additional paid-in capital in stockholders’ equity in its consolidated balance sheets.

In March 2022, the previously announced repurchase of $37,500 thousand of the Company’s common stock was completed pursuant to the ASR Agreement, and as a result, the Company additionally received 1,031,576 shares of its common stock for an aggregate purchase price of $17,217 thousand at a price per share of $16.69, which was reclassified as treasury stock from additional paid-in capital in stockholder’s equity in its consolidated balance sheets.

Expanded Stock Repurchase Program

On August 31, 2022, the Board of Directors has authorized an expansion of the Company’s previously announced stock repurchase program from $75,000 thousand to $87,500 thousand of its common stock. The remaining $50,000 thousand of the expanded $87,500 thousand program was planned to be repurchased in the open market or through privately negotiated transactions. In connection with the repurchase program, the Company established a stock trading plan with Oppenheimer & Co. Inc. in accordance with Rule 10b5-1 under the Securities Exchange Act of 1934, as amended.

From September 2022 to December 2022, the Company repurchased 1,235,650 shares of its common stock in the open market for an aggregate purchase price of $12,511 thousand and a price per share of $10.13 under the stock repurchase program.

During the first quarter of 2023, the Company repurchased 1,238,472 shares of its common stock in the open market for an aggregate purchase price of $11,887 thousand and a price per share of $9.60 under the stock repurchase program.

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16. Earnings (Loss) Per Share

The following table illustrates the computation of basic and diluted earnings (loss) per common share for the three months ended March 31, 2023 and 2022:

	Three Months Ended
	March 31, 2023			March 31, 2022
	(In thousands of U.S. dollars, except share data)
Basic Earnings (Loss) per Share
Net income (loss)	$	(21,470	)	$	9,528
Basic weighted average common stock outstanding		43,390,832			45,603,208
Basic earnings (loss) per share	$	(0.49	)	$	0.21
Diluted Earnings (Loss) per Share
Net income (loss)	$	(21,470	)	$	9,528
Basic weighted average common stock outstanding		43,390,832			45,603,208
Net effect of dilutive equity awards		—			1,090,086
Diluted weighted average common stock outstanding		43,390,832			46,693,294
Diluted earnings (loss) per share	$	(0.49	)	$	0.20

Diluted earnings (loss) per share adjusts basic earnings (loss) per share for the potentially dilutive impact of stock options. As the Company has reported loss for the three months ended March 31, 2023, all potentially dilutive securities, including stock options, are antidilutive and accordingly not considered, therefore basic net loss per share equals diluted net loss per share.

The following outstanding instruments were excluded from the computation of diluted earnings (loss) per share, as they have an anti-dilutive effect on the calculation:

	Three Months Ended
	March 31, 2023		March 31, 2022
Options		1,116,158		130,000
Restricted Stock Units		1,434,827		—

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17. Merger Agreement

On March 25, 2021, the Company, South Dearborn Limited, an exempted company incorporated in the Cayman Islands with limited liability (“Holdco”), formed by an affiliate of Wise Road Capital LTD (“Wise Road”), and Michigan Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of Holdco (“Merger Sub”), entered into an Agreement and Plan of Merger (as amended, the “Merger Agreement”), providing for, among other things and subject to the terms and conditions thereof, the merger of Merger Sub with and into the Company (the “Merger”), with the Company surviving the Merger as a wholly owned subsidiary of Holdco.

The closing of the Merger was subject to certain conditions, including clearance by the Committee on Foreign Investment in the United States (“CFIUS”) under the Defense Production Act of 1950, as amended. The Company and Holdco were advised that CFIUS clearance of the Merger would not be forthcoming and received permission from CFIUS to withdraw their joint filing. In connection therewith, the Company and Holdco entered into a Termination and Settlement Agreement, dated December 13, 2021 (the “Termination Agreement”), pursuant to which Holdco agreed to pay $70,200 thousand (the “Termination Fee”) to the Company on the terms specified in the Termination Agreement in satisfaction of Holdco’s obligation to pay a termination fee in connection with the termination of the Merger Agreement. On December 20, 2021, the Merger Agreement was terminated pursuant to the Termination Agreement after the Company’s receipt of a fee of $51,000 thousand from Holdco and a standby letter of credit, which secures a deferred fee of $19,200 thousand from Holdco due on or before March 31, 2022. As of December 31, 2021, of the Termination Fee, $19,200 thousand deferred fee was recorded as other receivables. In connection therewith, the Company, Holdco and Wise Road entered into a First Amendment to the Termination Agreement, dated April 4, 2022, pursuant to which Holdco paid $14,400 thousand on April 4, 2022, with $4,800 thousand remaining outstanding. The Company, Holdco and Wise Road entered into a Second Amendment to the Termination Agreement, dated August 5, 2022 pursuant to which Holdco paid $3,000 thousand on August 5, 2022, of the deferred fee and payment of the remaining $1,800 thousand was due on or before October 31, 2022. The Company, Holdco and Wise Road entered into a series of letter agreements pursuant to which the parties ultimately agreed to defer the remaining $1,800 thousand due on or before March 31, 2023. As of March 31, 2023, the remaining fee of $1,800 thousand was recorded as other receivables. On April 6, 2023, Holdco paid the remaining $1,800 thousand.

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18. Commitments and Contingencies

Advances to Suppliers

The Company, from time to time, may make advances in form of prepayments or deposits to suppliers, including external foundries, to meet its planned production. The Company recorded advances of $4,372 thousand and $6,605 thousand as other current assets as of March 31, 2023 and December 31, 2022, respectively.

COVID-19 Pandemic

In March 2020, the World Health Organization declared the COVID-19 outbreak a pandemic, and governmental authorities throughout the world implemented numerous restrictions and containment measures that resulted in rapidly changing market and economic conditions. Many of these restrictions and containment measures have since been lifted or scaled back. The Company will continue to monitor and evaluate the nature and scope of the impact of the COVID-19 pandemic to its business, consolidated results of operations, and financial condition, and may take actions it deems necessary or appropriate to respond in the event of a reemergence of the pandemic.

19. Subsequent Events

Derivative contracts

In April 2023, the Company and SC entered into derivative contract of zero cost collar for December 2023. The total notional amounts are $5,000 thousand.

In April 2023, the Company and NFIK entered into derivative contracts of zero cost collars for the period from January 2024 to June 2024. The total notional amounts are $18,000 thousand.

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FORWARD LOOKING STATEMENTS

This Quarterly Report on Form 10-Q (this “Report”) contains forward-looking statements within the meaning of Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and Section 27A of the Securities Act of 1933, as amended, that involve risks and uncertainties. Forward-looking statements give our current expectations and projections relating to our financial condition, results of operations, plans, objectives, future performance and business. You can identify these statements by the fact that they do not relate strictly to historical or current facts. These statements may include words such as “anticipate,” “estimate,” “expect,” “project,” “intend,” “plan,” “believe” and other words and terms of similar meaning in connection with any discussion of the timing or nature of future operating or financial performance or other events. All statements other than statements of historical facts included in this report that address activities, events or developments that we expect, believe or anticipate will or may occur in the future are forward-looking statements.

These forward-looking statements are largely based on our expectations and beliefs concerning future events, which reflect estimates and assumptions made by our management. These estimates and assumptions reflect our best judgment based on currently known market conditions and other factors relating to our operations and business environment, all of which are difficult to predict and many of which are beyond our control. Although we believe our estimates and assumptions to be reasonable, they are inherently uncertain and involve a number of risks and uncertainties that are beyond our control. In addition, management’s assumptions about future events may prove to be inaccurate. Management cautions all readers that the forward-looking statements contained in this report are not guarantees of future performance, and we cannot assure any reader that those statements will be realized or the forward-looking events and circumstances will occur. Actual results may differ materially from those anticipated or implied in the forward-looking statements due to the factors listed in this section, in “Part II: Item 1A. Risk Factors” herein and in “Part I: Item 1A. Risk Factors” in our Annual Report on Form 10-K for our fiscal year ended December 31, 2022 filed on February 22, 2023 (“2022 Form 10-K”).

All forward-looking statements speak only as of the date of this report. We do not intend to publicly update or revise any forward-looking statements as a result of new information or future events or otherwise, except as required by law. These cautionary statements qualify all forward-looking statements attributable to us or persons acting on our behalf.

Statements made in this Report, unless the context otherwise requires, that include the use of the terms “we,” “us,” “our” and “Magnachip” refer to Magnachip Semiconductor Corporation and its consolidated subsidiaries. The term “Korea” refers to the Republic of Korea or South Korea.

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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

The following discussion and analysis should be read in conjunction with the unaudited consolidated financial statements and the related notes included elsewhere in this Report.

Overview

We are a designer and manufacturer of analog and mixed-signal semiconductor platform solutions for communications, IoT applications, consumer, computing, industrial and automotive applications. We have a proven record with more than 40 years of operating history, a portfolio of approximately 1,100 registered patents and pending applications and extensive engineering and manufacturing process expertise.

Our standard products business includes our Display Solutions and Power Solutions business lines.

Our Display Solutions line of products provide flat panel display solutions to major suppliers of large and small flat panel displays. These products include source and gate drivers and timing controllers that cover a wide range of flat panel displays used in mobile communications, automotives, entertainment devices, IT applications such as monitors, notebook PCs, tablet PC and TVs applied with liquid crystal display (LCD), organic light emitting diodes (OLED) and Micro light emitting diode (Micro LED) panel. Since 2007, we have designed and manufactured OLED display driver integrated circuit (IC) products. Our current portfolio of OLED solutions address a wide range of resolutions ranging from HD (High Definition) to UHD (Ultra High Definition) for a wide range of applications including smartphones, TVs, automotive and IT applications such as monitors, notebook PCs, tablet PCs as well as AR/VRs.

Our Power Solutions business line produces power management semiconductor products including discrete and integrated circuit solutions for power management in communications, consumer, computing, servers, automotive, and industrial applications. These products include metal oxide semiconductor field effect transistors (MOSFETs), insulated-gate bipolar transistors (IGBTs), AC-DC/DC-DC converters, LED drivers, regulators and power management integrated circuits (PMICs) for a range of devices, including televisions, smartphones, mobile phones, wearable devices, desktop PCs, notebooks, tablet PCs, other consumer electrics, automotive, and industrial applications such as power suppliers, e-bikes, solar inverters, LED lighting and motor drives.

Our wide variety of analog and mixed-signal semiconductor products combined with our mature technology platform allow us to address multiple high-growth end markets and rapidly develop and introduce new products and services in response to market demands. Our design center in Korea and substantial manufacturing operations place us at the core of the global electronics device supply chain. We believe this enables us to quickly and efficiently respond to our customers’ needs, and allows us to better serve and capture additional demand from existing and new customers. Certain of our OLED products are produced using external 12-inch foundries. Through a strategic cooperation with external 12-inch foundries, we are managing to ensure outsourcing wafers at competitive price and produce quality products.

To maintain and increase our profitability, we must accurately forecast trends in demand for electronics devices that incorporate semiconductor products we produce. We must understand our customers’ needs as well as the likely end market trends and demand in the markets they serve. We must also invest in relevant research and development activities and purchase necessary materials on a timely basis to meet our customers’ demand while maintaining our target margins and cash flow.

The semiconductor markets in which we participate are highly competitive. The prices of our products tend to decrease regularly over their useful lives, and such price decreases can be significant as new generations of products are introduced by us or our competitors. We strive to offset the impact of declining selling prices for existing products through cost reductions and the introduction of new products that command selling prices above the average selling price of our existing products. In addition, we seek to manage our inventories and manufacturing capacity so as to mitigate the risk of losses from product obsolescence.

Demand for our products and services is driven by overall demand for communications, IoT, consumer and industrial products and can be adversely affected by periods of weak consumer and enterprise spending or by market share losses by our customers. In order to mitigate the impact of market volatility on our business, we continually strive to diversify our portfolio of products, customers, and target applications. We also expect that new competitors will emerge in these markets that may place increased pressure on the pricing for our products and services. While we believe we are well positioned competitively to compete in these markets and against these new competitors as a result of our long operating history, existing manufacturing capacity and our worldwide customer base, if we are not effective in competing in these markets, our operating results may be adversely affected.

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Net sales for our standard products business are driven by design wins in which we are selected by an electronics original equipment manufacturer (OEM) or other potential customer to supply its demand for a particular product. A customer will often have more than one supplier designed into multi-source components for a particular product line. Once we have design wins and the products enter into mass production, we often specify the pricing of a particular product for a set period of time, with periodic discussions and renegotiations of pricing with our customers. In any given period, our net sales depend heavily upon the end-market demand for the goods in which our products are used, the inventory levels maintained by our customers and, in some cases, allocation of demand for components for a particular product among selected qualified suppliers.

In contrast to completely fabless semiconductor companies, our internal manufacturing capacity provides us with greater control over certain manufacturing costs and the ability to implement process and production improvements for our internally manufactured products, which can favorably impact gross profit margins. Our internal manufacturing capacity also allows for better control over delivery schedules, improved consistency over product quality and reliability and improved ability to protect intellectual property from misappropriation on these internally manufactured products. However, having internal manufacturing capacity exposes us to the risk of under-utilization of manufacturing capacity that results in lower gross profit margins, particularly during downturns in the semiconductor industry.

Our standard products business requires investments in capital equipment. Analog and mixed-signal manufacturing facilities and processes are typically distinguished by the design and process implementation expertise rather than the use of the most advanced equipment. Many of these processes also tend to migrate more slowly to smaller geometries due to technological barriers and increased costs. For example, some of our products use high-voltage technology that requires larger geometries and that may not migrate to smaller geometries for several years, if at all. As a result, our manufacturing base and strategy do not require substantial investment in leading edge process equipment for those products, allowing us to utilize our facilities and equipment over an extended period of time with moderate required capital investments. In addition, we are less likely to experience significant industry overcapacity, which can cause product prices to decline significantly. In general, we seek to invest in manufacturing capacity that can be used for multiple high-value applications over an extended period of time. In addition, we outsource manufacturing of those products which do require advanced technology and 12-inch and 8-inch wafer capacity, such as organic light emitting diodes (OLED). We believe this balanced capital investment strategy enables us to optimize our capital investments and facilitates more diversified product and service offerings.

Since 2007, we had designed and manufactured OLED display driver ICs in our internal manufacturing facilities. As we expanded our design capabilities to products that require lower geometries unavailable at our existing manufacturing facilities, we began outsourcing manufacturing of certain OLED display driver ICs to external 12-inch foundries starting in the second half of 2015 and we have started outsourcing 8-inch wafer for OLED TV IC after the sale of our fabrication facility located in Cheongju, Korea in 2020. This additional source of manufacturing is an increasingly important part of our supply chain management. By outsourcing manufacturing of OLED products to external foundries, we are able to adapt dynamically to changing customer requirements and address growing markets without substantial capital investments by us. However, relying on external foundries exposes us to the risk of being unable to secure manufacturing capacity in the case of facing with a worldwide shortage of foundry services. Although we are working strategically with external foundries to ensure long-term wafer capacity, if these efforts are unsuccessful, our ability to deliver products to our customers may be negatively impacted, which would adversely affect our relationship with customers and opportunities to secure new design-wins.

Our success going forward will depend upon our ability to adapt to future challenges such as the emergence of new competitors for our products and services or the consolidation of current competitors. Additionally, we must innovate to remain ahead of, or at least rapidly adapt to, technological breakthroughs that may lead to a significant change in the technology necessary to deliver our products and services. We believe that our established relationships and close collaboration with leading customers enhance our awareness of new product opportunities, market and technology trends and improve our ability to adapt and grow successfully.

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Recent Developments

Voluntary Resignation Program

During the first quarter of 2023, we commenced a voluntary resignation program (the “Program”), which was available for the employees with more than 20 years of service. For the three months ended March 31, 2023, we recorded in our consolidated statement of operations $8.4 million of termination related charges as “early termination charges”, which are expected to be paid during the second quarter of 2023.

Expanded Stock Repurchase Program

On August 31, 2022, our Board of Directors authorized an expansion of the previously announced stock repurchase program from $75.0 million to $87.5 million of our common stock. We have already repurchased shares worth $37.5 million under the program through an accelerated stock repurchase agreement on December 21, 2021 with JPMorgan Chase Bank, National Association. The remaining $50.0 million of the expanded $87.5 million program has been and will be repurchased in the open market or through privately negotiated transactions. In connection with the repurchase program, we established a stock trading plan with Oppenheimer & Co. Inc. in accordance with Rule 10b5-1 under the Securities Exchange Act of 1934, as amended.

From September 2022 to December 2022, we repurchased 1,235,650 shares of our common stock in the open market for an aggregate purchase price of $12.5 million and a price per share of $10.13 under the stock repurchase program.

During the first quarter of 2023, we repurchased 1,238,472 shares of our common stock in the open market for an aggregate purchase price of $11.9 million and a price per share of $9.60 under the stock repurchase program.

Global Semiconductor Industry Trends

Increases in demand for semiconductor products resulted in a global shortage of manufacturing capacity over the prior two years. As a result, we may experience increased costs to manufacture our products and may not be able to manufacture and deliver all of the orders placed by our customers. Specifically, if we are unable to secure manufacturing capacity from the external foundries we rely on, our ability to deliver products to our customers may be negatively impacted. Also, shortage of manufacturing capacity may lead to an increase in our manufacturing costs. Our principal pricing strategy is to pass on the increased manufacturing costs to our customers; however, we may not be fully able to do this in all cases.

In an effort to minimize the potential adverse impact of the supply shortage, we continue to work strategically with certain external foundries to help ensure long-term wafer capacity. If these efforts are unsuccessful, however, such shortage could limit our ability to meet demand for our products in the future, which would adversely affect our reputation and competitive position, resulting in a negative impact on results of operations.

We are not able to foresee when the shortage of manufacturing capacity will subside, but we are beginning to see some indicators of improvement of such supply shortage situation. However, the global shortage for semiconductor products over the prior two years has led to overbooking backordered demand and oversupply. Additionally, the current global macroeconomic conditions, including remaining effects from the COVID-19 pandemic, inflation and higher interest rates, uncertainty caused by geopolitical conflict between the Russian and Ukraine and escalated trade tensions between the U.S. and China have led to weaker end-market demand and an oversupply of inventory. We continue to monitor these trends and uncertainties, and any decline in end-market demand and increase in inventory levels could negatively impact our financial condition and results of operations.

COVID-19 Pandemic

In March 2020, the World Health Organization declared the COVID-19 outbreak a pandemic, and governmental authorities throughout the world implemented numerous restrictions and containment measures that resulted in rapidly changing market and economic conditions. Many of these restrictions and containment measures have since been lifted or scaled back. We will continue to monitor and evaluate the nature and scope of the impact of the COVID-19 pandemic to its business, consolidated results of operations, and financial condition, and may take actions it deems necessary or appropriate to respond in the event of a reemergence of the pandemic.

Developments in Export Control Regulations

On October 7, 2022, the Bureau of Industry and Security of the U.S. Department of Commerce published changes to U.S. export control regulations (U.S. Export Regulations), including new restrictions on Chinese entities’ ability to obtain advanced computing chips, develop and maintain supercomputers, and manufacture advanced semiconductors. Further, on October 12, 2022, a new rule went into effect requiring U.S. persons to obtain a license prior to engaging in certain activities that could “support” certain end-uses and end-users, including those related to weapons of mass destruction. Additionally, on October 21, 2022, the Bureau of Industry and Security brought into effect a series of new Foreign Direct Product (FDP) rules and various new controls on advanced computing items, significantly expanding the scope of items that are subject to export control under the U.S. Export Regulations. Based on our understanding of the current U.S. Export Regulations and related rules, we do not anticipate that they will have a material impact on our business. Additional changes to the U.S. Export Regulations are expected, but the scope or timing of such changes is unknown. We will continue to monitor such developments, including potential additional trade restrictions, and other regulatory or policy changes by the U.S. and foreign governments.

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Explanation and Reconciliation of Non-U.S. GAAP Measures

Adjusted EBITDA, Adjusted Operating Income and Adjusted Net Income

We use the terms Adjusted EBITDA, Adjusted Operating Income and Adjusted Net Income (including on a per share basis) in this Report. Adjusted EBITDA, as we define it, is a non-U.S. GAAP measure. We define Adjusted EBITDA for the periods indicated as EBITDA (as defined below), adjusted to exclude (i) equity-based compensation expense, (ii) foreign currency loss, net, (iii) derivative valuation loss, net and (iv) early termination charges. EBITDA for the periods indicated is defined as net income (loss) before interest income, interest expense, income tax expense (benefit), and depreciation and amortization.

See the footnotes to the table below for further information regarding these items. We present Adjusted EBITDA as a supplemental measure of our performance because:

• we believe that Adjusted EBITDA, by eliminating the impact of a number of items that we do not consider to be indicative of our core ongoing operating performance, provides a more comparable measure of our operating performance from period-to-period and may be a better indicator of future performance;

• we believe that Adjusted EBITDA is commonly requested and used by securities analysts, investors and other interested parties in the evaluation of a company as an enterprise level performance measure that eliminates the effects of financing, income taxes and the accounting effects of capital spending, as well as other one time or recurring items described above; and

• we believe that Adjusted EBITDA is useful for investors, among other reasons, to assess a company’s period-to-period core operating performance and to understand and assess the manner in which management analyzes operating performance.

We use Adjusted EBITDA in a number of ways, including:

• for planning purposes, including the preparation of our annual operating budget;

• to evaluate the effectiveness of our enterprise level business strategies;

• in communications with our Board of Directors concerning our consolidated financial performance; and

• in certain of our compensation plans as a performance measure for determining incentive compensation payments.

We encourage you to evaluate each adjustment and the reasons we consider them appropriate. In evaluating Adjusted EBITDA, you should be aware that in the future we may incur expenses similar to the adjustments in this presentation. Adjusted EBITDA is not a measure defined in accordance with U.S. GAAP and should not be construed as an alternative to net income or any other performance measure derived in accordance with U.S GAAP, or as an alternative to cash flows from operating activities as a measure of liquidity. A reconciliation of net income (loss) to Adjusted EBITDA is as follows:

	Three Months Ended March 31, 2023			Three Months Ended March 31, 2022
	(Dollars in millions)
Net Income (loss)	$	(21.5	)	$	9.5
Interest income		(2.8	)		(0.7	)
Interest expense		0.3			0.1
Income tax expense (benefit)		(1.2	)		3.5
Depreciation and amortization		4.4			3.9
EBITDA		(20.9	)		16.3
Adjustments:
Equity-based compensation expense(a)		1.1			1.6
Foreign currency loss, net(b)		3.4			0.7
Derivative valuation loss, net(c)		0.1			0.1
Early termination charges(d)		8.4			—
Adjusted EBITDA	$	(7.9	)	$	18.8

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(a) This adjustment eliminates the impact of non-cash equity-based compensation expenses. Although we expect to incur non-cash equity-based compensation expenses in the future, these expenses do not generally require cash settlement, and, therefore, are not used by us to assess the profitability of our operations. We believe that analysts and investors will find it helpful to review our operating performance without the effects of these non-cash expenses as supplemental information.

(b) This adjustment mainly eliminates the impact of non-cash foreign currency translation associated with intercompany debt obligations and foreign currency denominated receivables and payables, as well as the cash impact of foreign currency transaction gains or losses on collection of such receivables and payment of such payables. Although we expect to incur foreign currency translation gains or losses in the future, we believe that analysts and investors will find it helpful to review our operating performance without the effects of these primarily non-cash gains or losses, which we cannot control. Additionally, we believe the isolation of this adjustment provides investors with enhanced comparability to prior and future periods of our operating performance results.

(c) This adjustment eliminates the impact of gain or loss recognized in income on derivatives, which represents derivatives value changes excluded from the risk being hedged. We enter into derivative transactions to mitigate foreign exchange risks. As our derivative transactions are limited to a certain portion of our expected cash flows denominated in U.S. dollars, and we do not enter into derivative transactions for trading or speculative purposes, we do not believe that these charges or gains are indicative of our core operating performance.

(d) For the three months ended March 31, 2023, this adjustment eliminates the termination related charges of $8.4 million in connection with the Program that we offered to certain employees during the first quarter of 2023. As this adjustment meaningfully impacted our operating results and are not expected to represent an ongoing operating expense or income to us, we believe our operating performance results are more usefully compared if this adjustment is excluded.

Adjusted EBITDA has limitations as an analytical tool, and you should not consider it in isolation, or as a substitute for analysis of our results as reported under U.S. GAAP. Some of these limitations are:

• Adjusted EBITDA does not reflect our cash expenditures, or future requirements, for capital expenditures or contractual commitments;

• Adjusted EBITDA does not reflect changes in, or cash requirements for, our working capital needs;

• Adjusted EBITDA does not reflect the interest expense, or the cash requirements necessary to service interest or principal payments, on our debt;

• although depreciation and amortization are non-cash charges, the assets being depreciated and amortized will often need to be replaced in the future, and Adjusted EBITDA does not reflect any cash requirements for such replacements;

• Adjusted EBITDA does not consider the potentially dilutive impact of issuing equity-based compensation to our management team and employees;

• Adjusted EBITDA does not reflect the costs of holding certain assets and liabilities in foreign currencies; and

• other companies in our industry may calculate Adjusted EBITDA differently than we do, limiting its usefulness as a comparative measure.

Because of these limitations, Adjusted EBITDA should not be considered as a measure of discretionary cash available to us to invest in the growth of our business. We compensate for these limitations by relying primarily on our U.S. GAAP results and using Adjusted EBITDA only supplementally.

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 We present Adjusted Operating Income as supplemental measures of our performance. We prepare Adjusted Operating Income by adjusting operating income (loss) to eliminate the impact of equity-based compensation expenses and other items that may be either one time or recurring that we do not consider to be indicative of our core ongoing operating performance. We believe that Adjusted Operating Income is useful to investors to provide a supplemental way to understand our underlying operating performance and allows investors to monitor and understand changes in our ability to generate income from ongoing business operations.

Adjusted Operating Income is not a measure defined in accordance with U.S. GAAP and should not be construed as an alternative to operating income or any other performance measure derived in accordance with U.S GAAP. We encourage you to evaluate each adjustment and the reasons we consider them appropriate. Other companies in our industry may calculate Adjusted Operating Income differently than we do, limiting its usefulness as a comparative measure. In addition, in evaluating Adjusted Operating Income, you should be aware that in the future we may incur expenses similar to the adjustments in this presentation. We define Adjusted Operating Income for the periods indicated as operating income adjusted to exclude (i) equity-based compensation expense and (ii) early termination charges.

The following table summarizes the adjustments to operating income (loss) that we make in order to calculate Adjusted Operating Income (Loss) for the periods indicated:

	Three Months Ended March 31, 2023			Three Months Ended March 31, 2022
	(Dollars in millions)
Operating income (loss)	$	(21.8	)	$	12.9
Adjustments:
Equity-based compensation expense(a)		1.1			1.6
Early termination charges(b)		8.4			—
Adjusted Operating Income (Loss)	$	(12.2	)	$	14.5

(a) This adjustment eliminates the impact of non-cash equity-based compensation expenses. Although we expect to incur non-cash equity-based compensation expenses in the future, these expenses do not generally require cash settlement, and, therefore, are not used by us to assess the profitability of our operations. We believe that analysts and investors will find it helpful to review our operating performance without the effects of these non-cash expenses as supplemental information.

(b) For the three months ended March 31, 2023, this adjustment eliminates the termination related charges of $8.4 million in connection with the Program that we offered to certain employees during the first quarter of 2023. As this adjustment meaningfully impacted our operating results and are not expected to represent an ongoing operating expense or income to us, we believe our operating performance results are more usefully compared if this adjustment is excluded.

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We present Adjusted Net Income (including on a per share basis) as a further supplemental measure of our performance. We prepare Adjusted Net Income (including on a per share basis) by adjusting net income (loss) to eliminate the impact of a number of non-cash expenses and other items that may be either one time or recurring that we do not consider to be indicative of our core ongoing operating performance. We believe that Adjusted Net Income (including on a per share basis) is particularly useful because it reflects the impact of our asset base and capital structure on our operating performance. We present Adjusted Net Income (including on a per share basis) for a number of reasons, including:

• we use Adjusted Net Income (including on a per share basis) in communications with our Board of Directors concerning our consolidated financial performance without the impact of non-cash expenses and the other items as we discussed below since we believe that it is a more consistent measure of our core operating results from period to period; and

• we believe that reporting Adjusted Net Income (including on a per share basis) is useful to readers in evaluating our core operating results because it eliminates the effects of non-cash expenses as well as the other items we discuss below, such as foreign currency gains and losses, which are out of our control and can vary significantly from period to period.

Adjusted Net Income (including on a per share basis) is not a measure defined in accordance with U.S. GAAP and should not be construed as an alternative to net income or any other performance measure derived in accordance with U.S GAAP, or as an alternative to cash flows from operating activities as a measure of liquidity. We encourage you to evaluate each adjustment and the reasons we consider them appropriate. Other companies in our industry may calculate Adjusted Net Income (including on a per share basis) differently than we do, limiting its usefulness as a comparative measure. In addition, in evaluating Adjusted Net Income (including on a per share basis), you should be aware that in the future we may incur expenses similar to the adjustments in this presentation. We define Adjusted Net Income (including on a per share basis); for the periods indicated as net income (loss), adjusted to exclude (i) equity-based compensation expense, (ii) foreign currency loss, net, (iii) derivative valuation loss, net, (iv) early termination charges and (v) income tax effect on non-GAAP adjustments.

The following table summarizes the adjustments to net income (loss) that we make in order to calculate Adjusted Net Income (Loss) (including on a per share basis) for the periods indicated:

	Three Months Ended March 31, 2023			Three Months Ended March 31, 2022
	(Dollars in millions, except per share data)
Net Income (Loss)	$	(21.5	)	$	9.5
Adjustments:
Equity-based compensation expense(a)		1.1			1.6
Foreign currency loss, net(b)		3.4			0.7
Derivative valuation loss, net(c)		0.1			0.1
Early termination charges(d)		8.4			—
Income tax effect on non-GAAP adjustments(e)		(1.9	)		1.0
Adjusted Net Income (Loss)	$	(10.4	)	$	12.9

Reported earnings (loss) per share—basic	$	(0.49	)	$	0.21
Reported earnings (loss) per share—diluted	$	(0.49	)	$	0.20
Weighted average number of shares—basic		43,390,832			45,603,208
Weighted average number of shares—diluted		43,390,832			46,693,294
Adjusted earnings (loss) per share—basic	$	(0.24	)	$	0.28
Adjusted earnings (loss) per share—diluted	$	(0.24	)	$	0.28
Weighted average number of shares—basic		43,390,832			45,603,208
Weighted average number of shares—diluted		43,390,832			46,693,294

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(a) This adjustment eliminates the impact of non-cash equity-based compensation expenses. Although we expect to incur non-cash equity-based compensation expenses in the future, these expenses do not generally require cash settlement, and, therefore, are not used by us to assess the profitability of our operations. We believe that analysts and investors will find it helpful to review our operating performance without the effects of these non-cash expenses as supplemental information.

(b) This adjustment mainly eliminates the impact of non-cash foreign currency translation associated with intercompany debt obligations and foreign currency denominated receivables and payables, as well as the cash impact of foreign currency transaction gains or losses on collection of such receivables and payment of such payables. Although we expect to incur foreign currency translation gains or losses in the future, we believe that analysts and investors will find it helpful to review our operating performance without the effects of these primarily non-cash gains or losses, which we cannot control. Additionally, we believe the isolation of this adjustment provides investors with enhanced comparability to prior and future periods of our operating performance results.

(c) This adjustment eliminates the impact of gain or loss recognized in income on derivatives, which represents derivatives value changes excluded from the risk being hedged. We enter into derivative transactions to mitigate foreign exchange risks. As our derivative transactions are limited to a certain portion of our expected cash flows denominated in U.S. dollars, and we do not enter into derivative transactions for trading or speculative purposes, we do not believe that these charges or gains are indicative of our core operating performance.

(d) For the three months ended March 31, 2023, this adjustment eliminates the termination related charges of $8.4 million in connection with the Program that we offered to certain employees during the first quarter of 2023. As this adjustment meaningfully impacted our operating results and are not expected to represent an ongoing operating expense or income to us, we believe our operating performance results are more usefully compared if this adjustment is excluded.

(e) For the three months ended March 31, 2023 and 2022, income tax effect on non-GAAP adjustments were calculated by calculating the tax expense of each jurisdiction with or without the non-GAAP adjustments. For the three months ended March 31, 2023, income tax effect on non-GAAP adjustments related to our Korean subsidiary and the U.S parent entity were negative $1.2 million and negative $0.7 million, respectively. For the three months ended March 31, 2022, this adjustment eliminates the income tax effect on non-GAAP adjustments of $1.0 million related to our Korean subsidiary using a calculation method that we compare the tax expense of our Korean subsidiary with and without the non-GAAP adjustments.

We believe that all adjustments to net income (loss) used to calculate Adjusted Net Income (Loss) was applied consistently to the periods presented.

Adjusted Net Income has limitations as an analytical tool, and you should not consider it in isolation, or as a substitute for analysis of our results as reported under U.S. GAAP. Some of these limitations are:

• Adjusted Net Income does not reflect changes in, or cash requirements for, our working capital needs;

• Adjusted Net Income does not consider the potentially dilutive impact of issuing equity-based compensation to our management team and employees;

• Adjusted Net Income does not reflect the costs of holding certain assets and liabilities in foreign currencies; and

• other companies in our industry may calculate Adjusted Net Income differently than we do, limiting its usefulness as a comparative measure.

Because of these limitations, Adjusted Net Income should not be considered as a measure of profitability of our business. We compensate for these limitations by relying primarily on our U.S. GAAP results and using Adjusted Net Income only as a supplement.

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Factors Affecting Our Results of Operations

Net Sales. We derive substantially all of our sales (net of sales returns and allowances) from our standard products business. We outsource manufacturing of mobile OLED products to external 12-inch foundries. Our product inventory is primarily located in Korea and is available for drop shipment globally. Outside of Korea, we maintain limited product inventory, and our sales representatives generally relay orders to our factories in Korea for fulfillment. We have strategically located our sales offices near concentrations of major customers. Our sales offices are located in Korea, Japan, Taiwan and Greater China. Our network of authorized agents and distributors is in the United States, Europe and the Asia Pacific region.

We recognize revenue when a customer obtains control of the product, which is generally upon product shipment, delivery at the customer’s location or upon customer acceptance, depending on the terms of the arrangement. For the three months ended March 31, 2023 and 2022, we sold products to 120 and 140 customers, respectively, and our net sales to our ten largest customers represented 71% and 72% of our net sales—standard products business, respectively.

We will provide the Transitional Fab 3 Foundry Services up to September 1, 2023 at an agreed upon cost plus a mark-up.

Gross Profit. Our overall gross profit generally fluctuates as a result of changes in overall sales volumes and in the average selling prices of our products and services. Other factors that influence our gross profit include changes in product mix, the introduction of new products and services and subsequent generations of existing products and services, shifts in the utilization of our manufacturing facility and the yields achieved by our manufacturing operations, changes in material, labor and other manufacturing costs including outsourced manufacturing expenses, and variation in depreciation expense.

Average Selling Prices. Average selling prices for our products tend to be highest at the time of introduction of new products which utilize the latest technology and tend to decrease over time as such products mature in the market and are replaced by next generation products. We strive to offset the impact of declining selling prices for existing products through our product development activities and by introducing new products that command selling prices above the average selling price of our existing products. In addition, we seek to manage our inventories and manufacturing capacity so as to preclude losses from product and productive capacity obsolescence.

Material Costs. Our material costs consist of costs of raw materials, such as silicon wafers, chemicals, gases and tape and packaging supplies. We use processes that require specialized raw materials, such as silicon wafers, that are generally available from a limited number of suppliers. If demand increases or supplies decrease, the costs of our raw materials could increase significantly.

Labor Costs. A significant portion of our employees are located in Korea. Under Korean labor laws, most employees and certain executive officers with one or more years of service are entitled to severance benefits upon the termination of their employment based on their length of service and rate of pay. As of March 31, 2023, approximately 97% of our employees were eligible for severance benefits.

Depreciation Expense. We periodically evaluate the carrying values of long-lived assets, including property, plant and equipment and intangible assets, as well as the related depreciation periods. We depreciated our property, plant and equipment using the straight-line method over the estimated useful lives of our assets. Depreciation rates vary from 30-40 years on buildings to 3 to 12 years for certain equipment and assets. Our evaluation of carrying values is based on various analyses including cash flow and profitability projections. If our projections indicate that future undiscounted cash flows are not sufficient to recover the carrying values of the related long-lived assets, the carrying value of the assets is impaired and will be reduced, with the reduction charged to expense so that the carrying value is equal to fair value.

Selling Expenses. We sell our products worldwide through a direct sales force as well as a network of sales agents and representatives to OEMs, including major branded customers and contract manufacturers, and indirectly through distributors. Selling expenses consist primarily of the personnel costs for the members of our direct sales force, a network of sales representatives and other costs of distribution. Personnel costs include base salary, benefits and incentive compensation.

General and Administrative Expenses. General and administrative expenses consist of the costs of various corporate operations, including finance, legal, human resources and other administrative functions. These expenses primarily consist of payroll-related expenses, consulting and other professional fees and office facility-related expenses.

Research and Development. The rapid technological change and product obsolescence that characterize our industry require us to make continuous investments in research and development. Product development time frames vary but, in general, we incur research and development costs one to two years before generating sales from the associated new products. These expenses include personnel costs for members of our engineering workforce, cost of photomasks, silicon wafers and other non-recurring engineering charges related to product design. Additionally, we develop base line process technology through experimentation and through the design and use of characterization wafers that help achieve commercially feasible yields for new products. The majority of research and development expenses of our display business are material and design-related costs for OLED display driver IC product development involving 28-nanometer or finer processes. The majority of research and development expenses of our power business are certain equipment, material and design-related costs for power discrete products and material and design-related costs for power IC products. Power IC uses standard BCD process technologies which can be sourced from multiple foundries.

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 Impact of Foreign Currency Exchange Rates on Reported Results of Operations. Historically, a portion of our revenues and cost of sales and greater than the majority of our operating expenses have been denominated in non-U.S. currencies, principally the Korean won, and we expect that this will remain true in the future. Because we report our results of operations in U.S. dollars converted from our non-U.S. revenues and expenses based on monthly average exchange rates, changes in the exchange rate between the Korean won and the U.S. dollar could materially impact our reported results of operations and distort period to period comparisons. In particular, because of the difference in the amount of our consolidated revenues and expenses that are in U.S. dollars relative to Korean won, depreciation in the U.S. dollar relative to the Korean won could result in a material increase in reported costs relative to revenues, and therefore could cause our profit margins and operating income to appear to decline materially, particularly relative to prior periods. The converse is true if the U.S. dollar were to appreciate relative to the Korean won. Moreover, our foreign currency gain or loss would be affected by changes in the exchange rate between the Korean won and the U.S. dollar as a substantial portion of non-cash translation gain or loss is associated with the intercompany long-term loans to our Korean subsidiary, which is denominated in U.S. dollars. As of March 31, 2023, the outstanding intercompany loan balance including accrued interest between our Korean subsidiary and our Dutch subsidiary was $301.9 million. As a result of such foreign currency fluctuations, it could be more difficult to detect underlying trends in our business and results of operations. In addition, to the extent that fluctuations in currency exchange rates cause our results of operations to differ from our expectations or the expectations of our investors, the trading price of our stock could be adversely affected.

From time to time, we may engage in exchange rate hedging activities in an effort to mitigate the impact of exchange rate fluctuations. Our Korean subsidiary enters into foreign currency zero cost collar contracts in order to mitigate a portion of the impact of U.S. dollar-Korean won exchange rate fluctuations on our operating results. Obligations under these foreign currency zero cost collar contracts must be cash collateralized if our exposure exceeds certain specified thresholds. These zero cost collar contracts may be terminated by a counterparty in a number of circumstances, including if our total cash and cash equivalents is less than $30.0 million at the end of a fiscal quarter unless a waiver is obtained from the counterparty. We cannot assure that any hedging technique we implement will be effective. If our hedging activities are not effective, changes in currency exchange rates may have a more significant impact on our results of operations.

Foreign Currency Gain or Loss. Foreign currency translation gains or losses on transactions by us or our subsidiaries in a currency other than our or our subsidiaries’ functional currency are included in foreign currency gain (loss), net in our statements of operations. A substantial portion of this net foreign currency gain or loss relates to non-cash translation gain or loss related to the principal balance of intercompany balances at our Korean subsidiary that are denominated in U.S. dollars. This gain or loss results from fluctuations in the exchange rate between the Korean won and U.S. dollar.

Income Taxes. We record our income taxes in each of the tax jurisdictions in which we operate. This process involves using an asset and liability approach whereby deferred tax assets and liabilities are recorded for differences in the financial reporting bases and tax basis of our assets and liabilities. We exercise significant management judgment in determining our provision for income taxes, deferred tax assets and liabilities. We assess whether it is more likely than not that the deferred tax assets existing at the period-end will be realized in future periods. In such assessment, we consider all available positive and negative evidence, including scheduled reversals of deferred tax liabilities, projected future taxable income, tax planning strategies and recent results of operations. In the event we were to determine that we would be able to realize the deferred income tax assets in the future in excess of their net recorded amount, we would adjust the valuation allowance, which would reduce the provision for income taxes.

We are subject to income- or non-income-based tax examinations by tax authorities of the U.S., Korea and multiple other foreign jurisdictions for all open tax years. Significant estimates and judgments are required in determining our worldwide provision for income- or non-income based taxes. Some of these estimates are based on interpretations of existing tax laws or regulations. The ultimate amount of tax liability may be uncertain as a result.

Capital Expenditures. We primarily invest in manufacturing equipment, software design tools and other tangible assets mainly for fabrication facility maintenance, capacity expansion and technology improvement. Capacity expansions and technology improvements typically occur in anticipation of increases in demand. We typically pay for capital expenditures in partial installments with portions due on order, delivery and final acceptance. Our capital expenditures mainly include our payments for the purchase of property, plant and equipment.

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 Inventories. We monitor our inventory levels in light of product development changes and market expectations. We may be required to take additional charges for quantities in excess of demand, cost in excess of market value and product age. Our analysis may take into consideration historical usage, expected demand, anticipated sales price, new product development schedules, the effect new products might have on the sales of existing products, product age, customer design activity, customer concentration and other factors. These forecasts require us to estimate our ability to predict demand for current and future products and compare those estimates with our current inventory levels and inventory purchase commitments. Our forecasts for our inventory may differ from actual inventory use.

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Results of Operations – Comparison of Three Months Ended March 31, 2023 and 2022

The following table sets forth consolidated results of operations for the three months ended March 31, 2023 and 2022:

	Three Months Ended March 31, 2023						Three Months Ended March 31, 2022
	Amount			% of Total Revenues			Amount			% of Total Revenues			Change Amount
	(Dollars in millions)
Revenues
Net sales – standard products business	$	51.5			90.4	%	$	94.0			90.3	%	$	(42.5	)
Net sales – transitional Fab 3 foundry services		5.5			9.6			10.1			9.7			(4.6	)
Total revenues		57.0			100.0			104.1			100.0			(47.1	)
Cost of sales
Cost of sales – standard products business		37.3			65.5			56.1			53.9			(18.8	)
Cost of sales – transitional Fab 3 foundry services		7.6			13.3			9.0			8.7			(1.4	)
Total cost of sales		44.9			78.8			65.1			62.5			(20.2	)
Gross profit		12.1			21.2			39.0			37.5			(26.9	)
Selling, general and administrative expenses		12.2			21.3			14.2			13.6			(2.0	)
Research and development expenses		13.3			23.3			12.0			11.5			1.3
Early termination charges		8.4			14.8			—			—			8.4
Operating income (loss)		(21.8	)		(38.3	)		12.9			12.4			(34.7	)
Interest income		2.8			5.0			0.7			0.7			2.1
Interest expense		(0.3	)		(0.4	)		(0.1	)		(0.1	)		(0.1	)
Foreign currency loss, net		(3.4	)		(6.0	)		(0.7	)		(0.7	)		(2.7	)
Others, net		(0.0	)		(0.1	)		0.2			0.2			(0.3	)
		(0.9	)		(1.5	)		0.1			0.1			(1.0	)
Income (loss) before income tax expense		(22.7	)		(39.8	)		13.0			12.5			(35.7	)
Income tax expense (benefit)		(1.2	)		(2.2	)		3.5			3.3			(4.7	)
Net income (loss)	$	(21.5	)		(37.7	)	$	9.5			9.2		$	(31.0	)

	Three Months Ended March 31, 2023					Three Months Ended March 31, 2022
	Amount		% of Total Revenues			Amount		% of Total Revenues			Change Amount
	(Dollars in millions)
Revenues
Net sales – standard products business
Display Solutions	$	10.8		19.0	%	$	29.2		28.0	%	$	(18.3	)
Power Solutions		40.7		71.4			64.8		62.3			(24.2	)
Total standard products business		51.5		90.4			94.0		90.3			(42.5	)
Net sales – transitional Fab 3 foundry services		5.5		9.6			10.1		9.7			(4.6	)
Total revenues	$	57.0		100.0	%	$	104.1		100.0	%	$	(47.1	)

	Three Months Ended March 31, 2023						Three Months Ended March 31, 2022
	Amount			% of Net Sales			Amount		% of Net Sales			Change Amount
	(Dollars in millions)
Gross Profit
Gross profit – standard products business	$	14.2			27.6	%	$	37.9		40.3	%	$	(23.7	)
Gross profit – transitional Fab 3 foundry services		(2.1	)		(38.4	)		1.1		10.6			(3.2	)
Total gross profit	$	12.1			21.2	%	$	39.0		37.5	%	$	(26.9	)

36

Revenues

Total revenues were $57.0 million for the three months ended March 31, 2023, a $47.1 million, or 45.2%, decrease compared to $104.1 million for the three months ended March 31, 2022. This decrease was primarily due to a decrease in revenue related to our standard products business as described below.

The standard products business. Net sales from our standard products business were $51.5 million for the three months ended March 31, 2023, a $42.5 million, or 45.2%, decrease compared to $94.0 million for the three months ended March 31, 2022. The decrease in net sales from our Display Solutions business line was primarily attributable to a decrease in revenue from our mobile OLED display driver ICs stemming from a lower customer demand resulting from weak global macroeconomic conditions, and a lack of new design-wins caused by supply shortage in 2022 (in particular for 28nm 12 inch OLED wafers) at external 12 inch foundries. The decrease in net sales from our Power Solutions business line was attributable to lower demand for power products such as MOSFETs, including high-end MOSFETs, primarily for TVs, smartphones and e-bikes, due mainly to the industry-wide slowdown.

The transitional Fab 3 foundry services. Net sales from the transitional Fab 3 foundry services were $5.5 million and $10.1 million for the three months ended March 31, 2023 and 2022, respectively.

Gross Profit

Total gross profit was $12.1 million for the three months ended March 31, 2023 compared to $39.0 million for the three months ended March 31, 2022, a $26.9 million, or 69.0%, decrease. Gross profit as a percentage of net sales for the three months ended March 31, 2023 decreased to 21.2% compared to 37.5% for the three months ended March 31, 2022. The decrease in gross profit and gross profit as a percentage of net sales was primarily due to our standard products business as further described below.

The standard products business. Gross profit from our standard products business was $14.2 million for the three months ended March 31, 2023, which represented a $23.7 million, or 62.6%, decrease from gross profit of $37.9 million for the three months ended March 31, 2022. The decrease in gross profit was primarily attributable to a significant decrease in net sales from our standard product business as explained above. Gross profit as a percentage of net sales for the three months ended March 31, 2023 decreased to 27.6% compared to 40.3% for the three months ended March 31, 2022. The year-over-year decrease in gross profit as a percentage of net sales was primarily attributable to an unfavorable product mix and a significant drop in the utilization rate of our internal fabrication facility in Gumi. Gross profit as a percentage of net sales for the three months ended March 31, 2022 was higher due to an increase in average selling price benefited from the favorable pricing environment.

37

Net Sales – Standard Products Business by Geographic Region

We report net sales – standard products business by geographic region based on the location to which the products are billed. The following table sets forth our net sales—standard products business by geographic region and the percentage of total net sales—standard products business represented by each geographic region for the three months ended March 31, 2023 and 2022:

	Three Months Ended March 31, 2023					Three Months Ended March 31, 2022
	Amount		% of Net Sales – standard products business			Amount		% of Net Sales – standard products business			Change Amount
	(Dollars in millions)
Korea	$	16.5		32.0	%	$	31.0		33.0	%	$	(14.5	)
Asia Pacific (other than Korea)		31.9		62.0			58.3		62.0			(26.4	)
United States		1.0		2.0			2.9		3.0			(1.8	)
Europe		2.1		4.0			1.9		2.0			0.2
	$	51.5		100.0	%	$	94.0		100.0	%	$	(42.5	)

Net sales – standard products business in Korea for the three months ended March 31, 2023 decreased from $31.0 million to $16.5 million compared to the three months ended March 31, 2022, or by $14.5 million, or 46.8%, primarily due to lower demand for power products such as MOSFETs, including high-end MOSFETs, primarily for TVs and smartphone applications. Weak demand for our OLED TV display driver ICs also unfavorably affected this quarter.

Net sales – standard products business in Asia Pacific (other than Korea) for the three months ended March 31, 2023 decreased to $31.9 million from $58.3 million in the three months ended March 31, 2022, or by $26.4 million, or 45.2%, primarily due to a decrease in revenue from our mobile OLED display driver ICs stemming from a lower customer demand resulting from weak global macroeconomic conditions, and a lack of new design-wins caused by supply shortage in 2022 (in particular for 28nm 12 inch OLED wafers) at external 12 inch foundries. The decreased demand for our power products such as MOSFETs, including high-end MOSFETs, primarily for smartphones and e-bikes, also unfavorably affected this quarter.

Operating Expenses

Selling, General and Administrative Expenses. Selling, general and administrative expenses were $12.2 million, or 21.3% of total revenues, for the three months ended March 31, 2023, compared to $14.2 million, or 13.6% of total revenues, for the three months ended March 31, 2022. The decrease of $2.0 million, or 14.1%, was primarily attributable to a decrease in employee compensation including certain incentives and benefit related accruals. This decrease also resulted from a decrease in professional fees mainly comprised of legal and consulting fees.

Research and Development Expenses. Research and development expenses were $13.3 million, or 23.3% of total revenues, for the three months ended March 31, 2023, compared to $12.0 million, or 11.5% of total revenues, for the three months ended March 31, 2022. The increase of $1.3 million, or 11.2%, was primarily attributable to an increase in development activities for our 28-nanometer OLED display driver ICs, which was offset in part by a decrease in certain employee incentives.

Early Termination Charges. For the three months ended March 31, 2023, we recorded in our consolidated statement of operations $8.4 million of termination related charges in connection with the Program that we offered to certain employees during the first quarter of 2023.

Operating Income (Loss)

As a result of the foregoing, operating loss of $21.8 million was recorded for the three months ended March 31, 2023 compared to operating income of $12.9 million for the three months ended March 31, 2022. As discussed above, the decrease in operating income of $34.7 million resulted primarily from a $26.9 million decrease in gross profit, an $8.4 million increase in early termination charges and a $1.3 million increase in research and development expenses. This decrease in operating income was offset in part by a $2.0 million decrease in selling, general and administrative expenses.

38

Other Income (Expense)

Interest Income. Interest income was $2.8 million and $0.7 million for the three months ended March 31, 2023 and March 31, 2022, respectively. The increase of $2.1 million, or 297.5%, was primarily attributable to an increase in interest income on cash and cash equivalents held by our Korean subsidiary, which benefited from the favorable financial market environment.

Interest Expense. Interest expense was $0.3 million and $0.1 million for the three months ended March 31, 2023 and March 31, 2022, respectively.

Foreign Currency Loss, Net. Net foreign currency loss for the three months ended March 31, 2023 was $3.4 million compared to net foreign currency loss of $0.7 million for the three months ended March 31, 2022. The net foreign currency loss for the three months ended March 31, 2023 and March 31, 2022 was due to the depreciation in value of the Korean won relative to the U.S. dollar during the period.

A substantial portion of our net foreign currency gain or loss is non-cash translation gain or loss associated with intercompany long-term loans to our Korean subsidiary, which are denominated in U.S. dollars, and are affected by changes in the exchange rate between the Korean won and the U.S. dollar. As of March 31, 2023 and March 31, 2022, the outstanding intercompany loan balances, including accrued interest between our Korean subsidiary and our Dutch subsidiary, were $301.9 million and $348.5 million, respectively. Foreign currency translation gain or loss from intercompany balances were included in determining our consolidated net income (loss) since the intercompany balances were not considered long-term investments in nature because management intended to settle these intercompany balances at their respective maturity dates.

Income Tax Expense (Benefit)

Income tax benefit was $1.2 million for the three months ended March 31, 2023, which was primarily attributable to the estimated taxable loss in our Korean subsidiary for the respective period.

Income tax expense was $3.5 million for the three months ended March 31, 2022, which was primarily attributable to the estimated taxable income in our Korean subsidiary for the respective period.

Net Income (Loss)

As a result of the foregoing, a net loss of $21.5 million was recorded for the three months ended March 31, 2023 compared to a net income of $9.5 million for the three months ended March 31, 2022. As discussed above, the $31.0 million decrease in net income was primarily attributable to a $34.7 million decrease in operating income and a $2.7 million increase in net foreign currency loss, which was offset in part by a $4.7 million decrease in income tax expense and a $2.1 million increase in interest income.

39

Liquidity and Capital Resources

Our principal capital requirements are to fund sales and marketing, invest in research and development and capital equipment, and to fund working capital needs. We calculate working capital as current assets less current liabilities.

Our principal sources of liquidity are our cash, cash equivalents, cash flows from operations and financing activities. Our ability to manage cash and cash equivalents may be limited, as our primary cash flows are dictated by the terms of our sales and supply agreements, contractual obligations, debt instruments and legal and regulatory requirements. From time to time, we may sell accounts receivable to third parties under factoring agreements or engage in accounts receivable discounting to facilitate the collection of cash. In addition, from time to time, we may make payments to our vendors on extended terms with their consent. As of March 31, 2023, we did not have any accounts payable on extended terms or payment deferment with our vendors.

As of June 29, 2018, our Korean subsidiary entered into an arrangement whereby it (i) acquired a water treatment facility from SK hynix for $4.2 million to support our fabrication facility in Gumi, Korea, and (ii) subsequently sold the water treatment facility for $4.2 million to a third party management company that we engaged to run the facility for a 10-year term beginning July 1, 2018. As of March 31, 2023, the outstanding obligation of this arrangement is approximately $23.7 million for remaining service term through 2028.

As of March 31, 2023, cash and cash equivalents held by our Korean subsidiary were $193.0 million, which represents 91% of our total cash and cash equivalents on a consolidated basis. We currently believe that we will have sufficient cash reserves from cash on hand and expected cash from operations to fund our operations as well as capital expenditures for the next 12 months and the foreseeable future.

Working Capital

Our working capital balance as of March 31, 2023 was $261.6 million compared to $290.6 million as of December 31, 2022. The $29.0 million decrease was primarily attributable to a $13.4 million decrease in cash and cash equivalents resulted primarily from our stock repurchase program and a $7.4 million increase in accrued expense resulted primarily from termination related charges under the Program.

Cash Flows from Operating Activities

Cash inflow provided by operating activities totaled $7.9 million for the three months ended March 31, 2023, compared to $12.8 million of cash inflow provided by operating activities for the three months ended March 31, 2022. The net operating cash inflow for the three months ended March 31, 2023 reflects our net loss of $21.5 million, as adjusted favorably by $18.3 million, which mainly consisted of depreciation and amortization, provision for severance benefits, and net foreign currency loss, and net favorable impact of $11.1 million from changes of operating assets and liabilities.

Cash Flows from Investing Activities

Cash outflow used in investing activities totaled $3.6 million for the three months ended March 31, 2023, compared to $2.1 million of cash outflow used in investing activities for the three months ended March 31, 2022. The $1.5 million increase was primarily attributable to a $3.4 million increase in guarantee deposits, which was offset in part by a $1.1 million net decrease in hedge collateral and a $0.8 million decrease in purchase of property, plant and equipment.

Cash Flows from Financing Activities

Cash outflow used in financing activities totaled $12.4 million for the three months ended March 31, 2023, compared to $0.8 million of cash inflow provided by financing activities for the three months ended March 31, 2022. The financing cash outflow for the three months ended March 31, 2023 was primarily attributable to a payment of $11.9 million for the repurchases of our common stock pursuant to our stock repurchase program and a payment of $0.4 million for the repurchase of our common stock to satisfy tax withholding obligations in connection with the vesting of restricted stock units. The financing cash inflow for the three months ended March 31, 2022 was primarily attributable to $1.8 million of proceeds received from the issuance of common stock in connection with the exercise of stock options, which was offset in part by a payment of $0.8 million for the repurchase of our common stock to satisfy tax withholding obligations in connection with the vesting of restricted stock units.

Capital Expenditures

We routinely make capital expenditures for fabrication facility maintenance, enhancement of our existing facility and reinforcement of our global research and development capability. For the three months ended March 31, 2023, capital expenditures for property, plant and equipment were $0.1 million, a $0.8 million, or 85.7%, decrease from $0.9 million for the three months ended March 31, 2022. The capital expenditures for the three months ended March 31, 2023 and 2022 were related to meeting our customer demand and supporting technology and facility improvement at our fabrication facility.

40

Critical Accounting Policies and Estimates

Preparing financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the financial statements, the reported amounts of revenues and expenses during the reporting periods and the related disclosures in our consolidated financial statements and accompanying notes.

We believe that our significant accounting policies, which are described further in Note 1 to our consolidated financial statements in our Annual Report on Form 10-K for our fiscal year ended December 31, 2022, or our 2022 Form 10-K, are critical due to the fact that they involve a high degree of judgment and estimates about the effects of matters that are inherently uncertain. We base these estimates and judgments on historical experience, knowledge of current conditions and other assumptions and information that we believe to be reasonable. Estimates and assumptions about future events and their effects cannot be determined with certainty. Accordingly, these estimates may change as new events occur, as more experience is acquired, as additional information is obtained and as the business environment in which we operate changes.

A description of our critical accounting policies that involve significant management judgement appears in our 2022 Form 10-K, under “Management’s Discussion and Analysis of Financial Conditions and Reports of Operations—Critical Accounting Policies and Estimates.” There have been no other material changes to our critical accounting policies and estimates as compared to our critical accounting policies and estimates included in our 2022 Form 10-K.

41

Item 3. Quantitative and Qualitative Disclosures About Market Risk

We are exposed to the market risk that the value of a financial instrument will fluctuate due to changes in market conditions, primarily from changes in foreign currency exchange rates. In the normal course of our business, we are subject to market risks associated with currency movements on our assets and liabilities.

Foreign Currency Exposures

We have exposure to foreign currency exchange rate fluctuations on net income from our subsidiaries denominated in currencies other than U.S. dollars, as our foreign subsidiaries in Korea, Taiwan, China, Japan and Hong Kong use local currency as their functional currency. From time to time these subsidiaries have cash and financial instruments in local currency. The amounts held in Japan, Taiwan, Hong Kong and China are not material in regards to foreign currency movements. However, based on the cash and financial instruments balance at March 31, 2023 for our Korean subsidiary, a 10% devaluation of the Korean won against the U.S. dollar would have resulted in a decrease of $0.5 million in our U.S. dollar financial instruments and cash balances.

See “Note 7. Derivative Financial Instruments” to our consolidated financial statements under “Item 1. Interim Consolidated Financial Statements” and “Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations—Factors Affecting Our Results of Operations—Impact of Foreign Currency Exchange Rates on Reported Results of Operations” for additional information regarding our foreign exchange hedging activities.

42

Item 4. Controls and Procedures

Evaluation of Disclosure Controls and Procedures

We maintain disclosure controls and procedures that are designed to ensure that information required to be disclosed in our periodic reports filed or submitted under the Exchange Act, is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms, and that such information is accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure.

In connection with the preparation of this Report, we carried out an evaluation under the supervision of and with the participation of our management, including our Chief Executive Officer and Chief Financial Officer, as of March 31, 2023, of the effectiveness of the design and operation of our disclosure controls and procedures, as such term is defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act. Based upon this evaluation, our Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures were effective as of March 31, 2023.

Changes in Internal Control Over Financial Reporting

There were no changes in our internal control over financial reporting during the quarter ended March 31, 2023 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

43

PART II. OTHER INFORMATION

Item 1. Legal Proceedings

For a discussion of legal proceedings, see “Part I: Item 3. Legal Proceedings” of our 2022 Form 10-K.

See also “Item 1A. Risk Factors” in this Report and “Part I: Item 1A. Risk Factors” of our 2022 Form 10-K for additional information.

Item 1A. Risk Factors

The Company is subject to risks and uncertainties, any of which could have a significant or material adverse effect on our business, financial condition, liquidity or consolidated financial statements.

In addition to the other information contained in this Report and the other reports and materials the Company files with the SEC, investors should carefully consider the risk factors disclosed in Part I, Item 1A of our 2022 Form 10-K as well as in our subsequent filings with the SEC. The risks described herein and therein are not the only ones we face.

There have been no material changes to the risk factors disclosed in Part I, Item 1A of our 2022 Form 10-K.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds.

The following table shows the monthly activity related to our repurchases of common stock for the quarter ended March 31, 2023.

Period	Total Number of Shares Purchased(1)		Average Price Paid per Share		Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs(2)		Approximate dollar value of Shares that may yet be Purchased under the Plans or Programs (in thousands)(2)
January 2023		210,192	$	10.45		210,192	$	35,292
February 2023		222,314	$	10.16		222,314	$	33,033
March 2023(1)		807,487	$	9.22		805,966	$	25,601
Total		1,239,993	$	9.60		1,238,472	$	25,601

(1) Includes 1,521 shares withheld to satisfy tax withholding obligations in connection with the vesting of restricted stock units issued under our equity incentive plans.

(2) On August 31, 2022, the Company’s Board of Directors authorized an expansion of the Company’s previously announced stock repurchase program from $75 million to $87.5 million of the Company’s common stock. The Company has already repurchased shares worth $37.5 million under the program through an accelerated stock repurchase agreement on December 21, 2021 with JPMorgan Chase Bank, National Association. The remaining $50.0 million of the expanded $87.5 million program will be repurchased in the open market or through privately negotiated transactions. In connection with the repurchase program, the Company established a stock trading plan with Oppenheimer & Co. Inc. in accordance with Rule 10b5-1 under the Securities Exchange Act of 1934, as amended.

Item 3. Defaults Upon Senior Securities

Not applicable.

Item 4. Mine Safety Disclosures

Not applicable.

Item 5. Other Information

None.

44

Item 6. Exhibits.

Exhibit Number	Description
31.1#	Certification pursuant to Rule 13a-14(a) or Rule 15d-14(a) of the Securities Exchange Act of 1934 of the Principal Executive Officer.
31.2#	Certification pursuant to Rule 13a-14(a) or Rule 15d-14(a) of the Securities Exchange Act of 1934 of the Principal Financial Officer.
32.1†	Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, of the Principal Executive Officer.
32.2†	Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, of the Principal Financial Officer.
101.INS#	Inline XBRL Instance Document.
101.SCH#	Inline XBRL Taxonomy Extension Schema Document.
101.CAL#	Inline XBRL Taxonomy Extension Calculation Linkbase Document.
101.DEF#	Inline XBRL Taxonomy Extension Definition Linkbase Document.
101.LAB#	Inline XBRL Taxonomy Extension Label Linkbase Document.
101.PRE#	Inline XBRL Taxonomy Extension Presentation Linkbase Document.
104	Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101).

Footnotes:

^# Filed herewith

† Furnished herewith

45

 SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

	MAGNACHIP SEMICONDUCTOR CORPORATION (Registrant)
Dated: May 8, 2023	By:	/s/ Young-Joon Kim
		Young-Joon Kim
		Chief Executive Officer and Interim Chief Financial Officer
		(Principal Executive Officer and Principal Financial Officer)

46

EX-31.1

Exhibit 31.1

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

PURSUANT TO

SECTION 302 OF THE

SARBANES-OXLEY ACT OF 2002

I, Young-Joon Kim, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Magnachip Semiconductor Corporation;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Dated: May 8, 2023

/s/ Young-Joon Kim

Young-Joon Kim

Chief Executive Officer and Interim Chief Financial Officer

(Principal Executive Officer)

EX-31.2

Exhibit 31.2

CERTIFICATION OF PRINCIPAL FINANCIAL OFFICER

PURSUANT TO

SECTION 302 OF THE

SARBANES-OXLEY ACT OF 2002

I, Young-Joon Kim, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Magnachip Semiconductor Corporation;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Dated: May 8, 2023

/s/ Young-Joon Kim

Young-Joon Kim

Chief Executive Officer and Interim Chief Financial Officer

(Principal Financial Officer)

EX-32.1

Exhibit 32.1

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Pursuant to 18 U.S.C. § 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, the undersigned officer of Magnachip Semiconductor Corporation (the “Company”) hereby certifies, to such officer’s knowledge, that:

(i) the Quarterly Report on Form 10-Q of the Company for the quarterly period ended March 31, 2023 as filed with the Securities and Exchange Commission on the date hereof (the “Report”) fully complies with the requirements of Section 13(a) or Section 15(d), as applicable, of the Securities Exchange Act of 1934, as amended; and

(ii) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company as of the dates and for the periods expressed in the Report.

Dated: May 8, 2023	/s/ Young-Joon Kim
	Young-Joon Kim
	Chief Executive Officer and Interim Chief Financial Officer
	(Principal Executive Officer)

The foregoing certification is being furnished solely pursuant to 18 U.S.C § 1350 and shall not be deemed filed by the Company for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or incorporated by reference in any registration statement of the Company filed under the Securities Act of 1933, as amended.

A signed original of this written statement required by Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

EX-32.2

Exhibit 32.2

CERTIFICATION OF PRINCIPAL FINANCIAL OFFICER

PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Pursuant to 18 U.S.C. § 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, the undersigned officer of Magnachip Semiconductor Corporation (the “Company”) hereby certifies, to such officer’s knowledge, that:

(i) the Quarterly Report on Form 10-Q of the Company for the quarterly period ended March 31, 2023 as filed with the Securities and Exchange Commission on the date hereof (the “Report”) fully complies with the requirements of Section 13(a) or Section 15(d), as applicable, of the Securities Exchange Act of 1934, as amended; and

(ii) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company as of the dates and for the periods expressed in the Report.

Dated: May 8, 2023	/s/ Young-Joon Kim
	Young-Joon Kim
	Chief Executive Officer and Interim Chief Financial Officer
	(Principal Financial Officer)

The foregoing certification is being furnished solely pursuant to 18 U.S.C § 1350 and shall not be deemed filed by the Company for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or incorporated by reference in any registration statement of the Company filed under the Securities Act of 1933, as amended.

A signed original of this written statement required by Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

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Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2023	Apr. 30, 2023
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2023
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q1
Document Transition Report	false
Entity File Number	001-34791
Entity Registrant Name	Magnachip Semiconductor Corporation
Entity Central Index Key	0001325702
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	83-0406195
Entity Address, Address Line One	c/o Magnachip Semiconductor, Ltd.
Entity Address, Address Line Two	15F, 76 Jikji-daero 436beon-gil
Entity Address, City or Town	Heungdeok-gu
Entity Address, Country	KR
Entity Address, Postal Zip Code	28581
City Area Code	82
Local Phone Number	(2) 6903-3000
Title of 12(b) Security	Common Stock, par value $0.01 per share
Trading Symbol	MX
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		42,265,480

XML

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Current assets
Cash and cash equivalents	$ 212,085	$ 225,477
Accounts receivable, net	32,143	35,380
Inventories, net	36,360	39,883
Other receivables	5,342	7,847
Prepaid expenses	11,238	10,560
Hedge collateral (Note 7)	2,820	2,940
Other current assets (Note 18)	14,927	15,766
Total current assets	314,915	337,853
Property, plant and equipment, net	104,568	110,747
Operating lease right-of-use assets	5,413	5,265
Intangible assets, net	1,784	1,930
Long-term prepaid expenses	9,101	10,939
Deferred income taxes	37,380	38,324
Other non-current assets	14,683	11,587
Total assets	487,844	516,645
Current liabilities
Accounts payable	19,921	17,998
Other accounts payable	9,216	9,702
Accrued expenses (Note 6)	17,125	9,688
Accrued income taxes	146	3,154
Operating lease liabilities	1,622	1,397
Other current liabilities	5,261	5,306
Total current liabilities	53,291	47,245
Accrued severance benefits, net	23,608	23,121
Non-current operating lease liabilities	3,996	4,091
Other non-current liabilities	13,596	14,035
Total liabilities	94,491	88,492
Commitments and contingencies (Note 18)
Stockholders' equity
Common stock, $0.01 par value, 150,000,000 shares authorized, 56,437,182 shares issued and 42,589,315 outstanding at March 31, 2023 and 56,432,449 shares issued and 43,824,575 outstanding at December 31, 2022	564	564
Additional paid-in capital	267,187	266,058
Retained earnings	314,036	335,506
Treasury stock, 13,847,867 shares at March 31, 2023 and 12,607,874 shares at December 31, 2022, respectively	(173,441)	(161,422)
Accumulated other comprehensive loss	(14,993)	(12,553)
Total stockholders' equity	393,353	428,153
Total liabilities and stockholders' equity	$ 487,844	$ 516,645

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CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Mar. 31, 2023	Dec. 31, 2022
CONSOLIDATED BALANCE SHEETS [Abstract]
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	150,000,000	150,000,000
Common stock, shares issued (in shares)	56,437,182	56,432,449
Common stock, shares outstanding (in shares)	42,589,315	43,824,575
Treasury stock, shares (in shares)	13,847,867	12,607,874

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CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Revenues:
Net sales	$ 57,005	$ 104,093
Cost of sales:
Cost of sales	44,911	65,097
Gross profit	12,094	38,996
Operating expenses:
Selling, general and administrative expenses	12,165	14,163
Research and development expenses	13,298	11,954
Early termination charges	8,449	0
Total operating expenses	33,912	26,117
Operating income (loss)	(21,818)	12,879
Interest income	2,842	715
Interest expense	(256)	(111)
Foreign currency loss, net	(3,430)	(690)
Other income (expense), net	(35)	218
Income (loss) before income tax expense	(22,697)	13,011
Income tax expense (benefit)	(1,227)	3,483
Net income (loss)	$ (21,470)	$ 9,528
Basic earnings (loss) per common share (in dollars per share)	$ (0.49)	$ 0.21
Diluted earnings (loss) per common share (in dollars per share)	$ (0.49)	$ 0.2
Weighted average number of shares-
Basic (in shares)	43,390,832	45,603,208
Diluted (in shares)	43,390,832	46,693,294
Standard Products Business [Member]
Revenues:
Net sales	$ 51,514	$ 94,010
Cost of sales:
Cost of sales	37,312	56,080
Gross profit	14,202	37,930
Fab 3 Foundry Services [Member]
Revenues:
Net sales	5,491	10,083
Cost of sales:
Cost of sales	7,599	9,017
Gross profit	$ (2,108)	$ 1,066

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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) [Abstract]
Net income (loss)	$ (21,470)	$ 9,528
Other comprehensive loss
Foreign currency translation adjustments	(1,908)	(3,045)
Derivative adjustments
Fair valuation of derivatives	(1,135)	(1,264)
Reclassification adjustment for loss on derivatives included in net income (loss)	603	762
Total other comprehensive loss	(2,440)	(3,547)
Total comprehensive income (loss)	$ (23,910)	$ 5,981

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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Loss [Member]	Total
Beginning balance at Dec. 31, 2021	$ 559	$ 241,197	$ 343,542	$ (130,306)	$ (2,230)	$ 452,762
Beginning balance (in shares) at Dec. 31, 2021	45,659,304
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	$ 0	1,638	0	0	0	1,638
Exercise of stock options	$ 1	1,780	0	0	0	1,781
Exercise of stock options (in shares)	151,326
Settlement of restricted stock units	$ 2	(2)	0	0	0	0
Settlement of restricted stock units (in shares)	168,795
Acquisition of treasury stock	$ 0	0	0	$ (1,000)	0	(1,000)
Acquisition of treasury stock (in shares)				(53,464)
Accelerated stock repurchase	$ 0	17,217	0	$ (17,217)	0	0
Accelerated stock repurchase (in shares)	(1,031,576)
Other comprehensive loss, net	$ 0	0	0	0	(3,547)	(3,547)
Net income (loss)	0	0	9,528	0	0	9,528
Ending balance at Mar. 31, 2022	$ 562	261,830	353,070	(148,523)	(5,777)	461,162
Ending balance (in shares) at Mar. 31, 2022	44,894,385
Beginning balance at Dec. 31, 2022	$ 564	266,058	335,506	(161,422)	(12,553)	$ 428,153
Beginning balance (in shares) at Dec. 31, 2022	43,824,575					43,824,575
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	$ 0	1,120	0	0	0	$ 1,120
Exercise of stock options	$ 0	9	0	0	0	9
Exercise of stock options (in shares)	1,400
Settlement of restricted stock units	$ 0	0	0	0	0	0
Settlement of restricted stock units (in shares)	3,333
Acquisition of treasury stock	$ 0	0	0	$ (12,019)	0	(12,019)
Acquisition of treasury stock (in shares)				(1,239,993)
Other comprehensive loss, net	0	0	0	$ 0	(2,440)	(2,440)
Net income (loss)	0	0	(21,470)	0	0	(21,470)
Ending balance at Mar. 31, 2023	$ 564	$ 267,187	$ 314,036	$ (173,441)	$ (14,993)	$ 393,353
Ending balance (in shares) at Mar. 31, 2023	42,589,315					42,589,315

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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash flows from operating activities
Net income (loss)	$ (21,470)	$ 9,528
Adjustments to reconcile net income (loss) to net cash provided by operating activities
Depreciation and amortization	4,357	3,891
Provision for severance benefits	2,330	1,670
Loss on foreign currency, net	9,082	6,380
Provision for inventory reserves	1,138	145
Stock-based compensation	1,120	1,638
Other, net	237	161
Changes in operating assets and liabilities
Accounts receivable, net	2,973	(1,213)
Inventories	1,062	1,456
Other receivables	2,376	667
Other current assets	1,456	(6,829)
Accounts payable	1,904	538
Other accounts payable	(1,424)	(702)
Accrued expenses	7,600	187
Accrued income taxes	(2,923)	(2,346)
Other current liabilities	(596)	(711)
Other non-current liabilities	(169)	(73)
Payment of severance benefits	(871)	(1,389)
Other, net	(306)	(178)
Net cash provided by operating activities	7,876	12,820
Cash flows from investing activities
Proceeds from settlement of hedge collateral	1,155	1,829
Payment of hedge collateral	(1,093)	(2,891)
Purchase of property, plant and equipment	(135)	(944)
Payment for intellectual property registration	(74)	(59)
Payment of guarantee deposits	(3,482)	(79)
Other, net	19	2
Net cash used in investing activities	(3,610)	(2,142)
Cash flows from financing activities
Proceeds from exercise of stock options	9	1,781
Acquisition of treasury stock	(12,264)	(830)
Repayment of financing related to water treatment facility arrangement	(126)	(134)
Repayment of principal portion of finance lease liabilities	(24)	(16)
Net cash provided by (used in) financing activities	(12,405)	801
Effect of exchange rates on cash and cash equivalents	(5,253)	(6,105)
Net increase (decrease) in cash and cash equivalents	(13,392)	5,374
Cash and cash equivalents at beginning of period	225,477	279,547
Cash and cash equivalents at end of period	212,085	284,921
Supplemental cash flow information
Cash paid for income taxes	2,644	5,421
Non-cash investing and financing activities
Property, plant and equipment additions in other accounts payable	629	524
Acquisition of treasury stock to satisfy the tax withholding obligations in connection with equity-based compensation	0	996
Unsettled common stock repurchases	$ 401	$ 0

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Business, Basis of Presentation and Significant Accounting Policies

3 Months Ended

Mar. 31, 2023

Business, Basis of Presentation and Significant Accounting Policies [Abstract]

Business, Basis of Presentation and Significant Accounting Policies

1. Business, Basis of Presentation and Significant Accounting Policies

Business

Magnachip Semiconductor Corporation (together with its subsidiaries, the “Company”) is a designer and manufacturer of analog and mixed-signal semiconductor platform solutions for communications, Internet of Things (“IoT”) applications, consumer, computing, industrial and automotive applications.

The Company’s standard products business includes its Display Solutions and Power Solutions business lines. The Company’s Display Solutions products provide panel display solutions to major suppliers of large and small rigid and flexible panel displays, and a wide range of applications including smartphones, TVs, automotive and IT applications such as monitors, notebook PCs, tablet PCs as well as AR/VRs. The Company’s Power Solutions products include discrete and integrated circuit solutions for power management in communications, consumer, computing, servers, automotive, and industrial applications.

On September 1, 2020, the Company completed the sale of the Company’s Foundry Services Group business and its fabrication facility located in Cheongju, Korea, known as “Fab 4”. Following the consummation of the sale, and for up to three years, the Company is expected to provide transitional foundry services associated with its fabrication facility located in Gumi, Korea, known as “Fab 3”, at an agreed upon cost plus mark-up (the “Transitional Fab 3 Foundry Services”).

Basis of Presentation

The accompanying unaudited interim consolidated financial statements of the Company have been prepared in accordance with generally accepted accounting principles in the United States of America (“U.S. GAAP”). These interim consolidated financial statements include normal recurring adjustments and the elimination of all intercompany accounts and transactions which are, in the opinion of management, necessary to provide a fair statement of the Company’s financial condition and results of operations for the periods presented. These interim consolidated financial statements are presented in accordance with Accounting Standards Codification (“ASC”) 270, “Interim Reporting” and, accordingly, do not include all of the information and note disclosures required by U.S. GAAP for complete financial statements, except for the changes below. The results of operations for the three months ended March 31, 2023 are not necessarily indicative of the results to be expected for a full year or for any other periods.

The December 31, 2022 balance sheet data was derived from the Company’s audited financial statements, but does not include all disclosures required by U.S. GAAP. The interim consolidated financial statements should be read in conjunction with the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2022.

There have been no material changes to the Company’s significant accounting policies as of and for the three months ended March 31, 2023 as compared to the significant accounting policies described in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2022.

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Inventories

3 Months Ended

Mar. 31, 2023

Inventories [Abstract]

Inventories

2. Inventories

Inventories as of March 31, 2023 and December 31, 2022 consist of the following (in thousands):

	March 31, 2023			December 31, 2022
Finished goods	$	5,523		$	6,799
Semi-finished goods and work-in-process		39,427			40,265
Raw materials		6,351			7,460
Materials in-transit		—			36
Less: inventory reserve		(14,941	)		(14,677	)
Inventories, net	$	36,360		$	39,883

Changes in inventory reserve for the three months ended March 31, 2023 and 2022 are as follows (in thousands):

	Three Months Ended
	March 31, 2023			March 31, 2022
Beginning balance	$	(14,677	)	$	(5,730	)
Change in reserve
Inventory reserve charged to costs of sales		(2,584	)		(1,607	)
Sale of previously reserved inventory		1,476			1,452
		(1,108	)		(155	)
Write off		415			211
Translation adjustments		429			119
Ending balance	$	(14,941	)	$	(5,555	)

Inventory reserve represents the Company’s best estimate in value lost due to excessive inventory level, physical deterioration, obsolescence, changes in price levels, or other causes based on individual facts and circumstances. Inventory reserve relates to inventory items including finished goods, semi-finished goods, work-in-process and raw materials. Write off of this reserve is recognized only when the related inventory has been disposed or scrapped.

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Property, Plant and Equipment

3 Months Ended

Mar. 31, 2023

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

3. Property, Plant and Equipment

Property, plant and equipment as of March 31, 2023 and December 31, 2022 are comprised of the following (in thousands):

	March 31, 2023			December 31, 2022
Buildings and related structures	$	24,214		$	24,780
Machinery and equipment		134,843			137,666
Finance lease right-of-use assets		707			389
Others		33,529			33,890
		193,293			196,725
Less: accumulated depreciation		(102,768	)		(101,502	)
Land		12,670			13,034
Construction in progress		1,373			2,490
Property, plant and equipment, net	$	104,568		$	110,747

Aggregate depreciation expenses totaled $4,193 thousand and $3,706 thousand for the three months ended March 31, 2023 and 2022, respectively.

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Intangible Assets

3 Months Ended

Mar. 31, 2023

Intangible Assets [Abstract]

Intangible Assets

4. Intangible Assets

Intangible assets as of March 31, 2023 and December 31, 2022 are comprised of the following (in thousands):

	March 31, 2023
	Gross amount		Accumulated amortization			Net amount
Intellectual property assets	$	8,916	$	(7,132	)	$	1,784
Intangible assets	$	8,916	$	(7,132	)	$	1,784

	December 31, 2022
	Gross amount		Accumulated amortization			Net amount
Intellectual property assets	$	9,111	$	(7,181	)	$	1,930
Intangible assets	$	9,111	$	(7,181	)	$	1,930

Aggregate amortization expenses for intangible assets totaled $164 thousand and $185 thousand for the three months ended March 31, 2023 and 2022, respectively.

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Leases

3 Months Ended

Mar. 31, 2023

Leases [Abstract]

Leases

5. Leases

The Company has operating and finance leases for buildings and other assets such as vehicles and office equipment. The Company’s leases have remaining lease terms ranging from 1 year to 5 years.

The tables below present financial information related to the Company’s leases.

Supplemental balance sheets information related to leases as of March 31, 2023 and December 31, 2022 are as follows (in thousands):

Leases	Classification	March 31, 2023		December 31, 2022
Assets
Operating lease	Operating lease right-of-use assets	$	5,413	$	5,265
Finance lease	Property, plant and equipment, net		436		143
Total lease assets		$	5,849	$	5,408
Liabilities
Current
Operating	Operating lease liabilities	$	1,622	$	1,397
Finance	Other current liabilities		90		90
Non-current
Operating	Non-current operating lease liabilities		3,996		4,091
Finance	Other non-current liabilities		364		63
Total lease liabilities		$	6,072	$	5,641

The following table presents the weighted average remaining lease term and discount rate:

	March 31, 2023			December 31, 2022
Weighted average remaining lease term
Operating leases	3.4 years			3.7 years
Finance leases	4.1 years			2.4 years
Weighted average discount rate
Operating leases		6.6	%		6.6	%
Finance leases		7.7	%		7.6	%

The components of lease cost included in the Company’s consolidated statements of operations, are as follows (in thousands):

	Three Months Ended
	March 31, 2023		March 31, 2022
Operating lease cost	$	555	$	569
Finance lease cost
Amortization of right-of-use assets		32		16
Interest on lease liabilities		7		2
Total lease cost	$	594	$	587

The above table does not include an immaterial cost of short-term leases for the three months ended March 31, 2023 and 2022.

Other lease information is as follows (in thousands):

	Three Months Ended
	March 31, 2023		March 31, 2022
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	$	567	$	569
Operating cash flows from finance leases		7		2
Financing cash flows from finance leases		24		16

The aggregate future lease payments for operating and finance leases as of March 31, 2023 are as follows (in thousands):

	Operating Leases			Finance Leases
Remainder of 2023	$	1,448		$	91
2024		1,925			122
2025		1,419			121
2026		937			108
2027		644			95
Total future lease payments		6,373			537
Less: Imputed interest		(755	)		(83	)
Present value of future payments	$	5,618		$	454

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Accrued Expenses

3 Months Ended

Mar. 31, 2023

Accrued Expenses [Abstract]

Accrued Expenses

6. Accrued Expenses

Accrued expenses as of March 31, 2023 and December 31, 2022 are comprised of the following (in thousands):

	March 31, 2023		December 31, 2022
Payroll, benefits and related taxes, excluding severance benefits	$	14,475	$	7,620
Withholding tax attributable to intercompany interest income		473		43
Outside service fees		1,625		1,642
Others		552		383
Accrued expenses	$	17,125	$	9,688

Payroll, benefits and related taxes payable as of March 31, 2023 in the table above includes termination related charges under the voluntary resignation program (the “Program”) of $8,449 thousand, which are expected to be paid in the second quarter of 2023.

See “Note 10. Early Termination Charges” for more information regarding the Program.

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Derivative Financial Instruments

3 Months Ended

Mar. 31, 2023

Derivative Financial Instruments [Abstract]

Derivative Financial Instruments

7. Derivative Financial Instruments

The Company’s Korean subsidiary from time to time has entered into zero cost collar contracts to hedge the risk of changes in the functional-currency-equivalent cash flows attributable to currency rate changes on U.S. dollar denominated revenues.

Details of the zero cost collar contracts as of March 31, 2023 are as follows (in thousands):

Date of transaction	Total notional amount		Month of settlement
January 04, 2022	$	15,000	April 2023 to June 2023
March 07, 2022	$	24,000	July 2023 to December 2023
April 27, 2022	$	33,000	April 2023 to December 2023
March 08, 2023	$	18,000	July 2023 to December 2023

Details of the zero cost collar contracts as of December 31, 2022 are as follows (in thousands):

Date of transaction	Total notional amount		Month of settlement
January 04, 2022	$	30,000	January 2023 to June 2023
March 07, 2022	$	24,000	July 2023 to December 2023
April 27, 2022	$	42,000	January 2023 to December 2023

The zero cost collar contracts qualify as cash flow hedges under ASC 815, “Derivatives and Hedging,” since at both the inception of the contracts and on an ongoing basis, the hedging relationship was and is expected to be highly effective in achieving offsetting cash flows attributable to the hedged risk during the term of the contracts.

The fair values of the Company’s outstanding zero cost collar contracts recorded as assets and liabilities as of March 31, 2023 and December 31, 2022 are as follows (in thousands):

Derivatives designated as hedging instruments:		March 31, 2023		December 31, 2022
Asset Derivatives:
Zero cost collars	Other current assets	$	2	$	—
Liability Derivatives:
Zero cost collars	Other current liabilities	$	2,641	$	2,015

Offsetting of derivative assets and liabilities as of March 31, 2023 is as follows (in thousands):

	Gross amounts of recognized Assets/liabilities		Gross amounts offset in the balance sheets		Net amounts of Assets/liabilities presented in the balance sheets		Gross amounts not offset in the balance sheets					Net amount
As of March 31, 2023							Financial instruments		Cash collateral pledged
Asset Derivatives:
Zero cost collars	$	2	$	—	$	2	$	—	$	—		$	2
Liability Derivatives:
Zero cost collars	$	2,641	$	—	$	2,641	$	—	$	(1,820	)	$	821

Offsetting of derivative liabilities as of December 31, 2022 is as follows (in thousands):

	Gross amounts of recognized liabilities		Gross amounts offset in the balance sheets		Net amounts of liabilities presented in the balance sheets		Gross amounts not offset in the balance sheets					Net amount
As of December 31, 2022							Financial instruments		Cash collateral pledged
Liability Derivatives:
Zero cost collars	$	2,015	$	—	$	2,015	$	—	$	(1,940	)	$	75

For derivative instruments that are designated and qualify as cash flow hedges, gains or losses on the derivative aside from components excluded from the assessment of effectiveness are reported as a component of accumulated other comprehensive income or loss (“AOCI”) and reclassified into earnings in the same period or periods during which the hedged transaction affects earnings. Gains and losses on the derivative, representing hedge components excluded from the assessment of effectiveness, are recognized in current earnings.

The following table summarizes the impact of derivative instruments on the consolidated statements of operations for the three months ended March 31, 2023 and 2022 (in thousands):

Derivatives in ASC 815 Cash Flow Hedging Relationships	Amount of Loss Recognized in AOCI on Derivatives						Location/Amount of Loss Reclassified from AOCI Into Statement of Operations							Location/Amount of Loss Recognized in Statement of Operations on Derivatives
	Three Months Ended March 31,							Three Months Ended March 31,							Three Months Ended March 31,
	2023			2022				2023			2022				2023			2022
Zero cost collars	$	(1,135	)	$	(1,264	)	Net sales	$	(603	)	$	(762	)	Other income, net	$	(54	)	$	(129	)
	$	(1,135	)	$	(1,264	)		$	(603	)	$	(762	)		$	(54	)	$	(129	)

As of March 31, 2023, the amount expected to be reclassified from accumulated other comprehensive loss into loss within the next 12 months is $1,757 thousand.

The Company set aside cash deposit to the counterparty, Standard Chartered Bank Korea Limited (“SC”), as required for the zero cost collar contracts. This cash deposit is recorded as hedge collateral on the consolidated balance sheets. Cash deposits as of March 31, 2023 and December 31, 2022 are as follows (in thousands):

Counterparty	March 31, 2023		December 31, 2022
SC	$	1,000	$	1,000
Total	$	1,000	$	1,000

The Company is required to deposit additional cash collateral with Nomura Financial Investment (Korea) Co., Ltd. (“NFIK”) and SC for any exposure in excess of $500 thousand. As of March 31, 2023, $1,820 thousand of additional cash collateral was required by NFIK, and recorded as hedge collateral on the consolidated balance sheet. As of December 31, 2022, $1,840 thousand and $100 thousand of additional cash collateral were required by NFIK and SC, respectively, and recorded as hedge collateral on the consolidated balance sheet.

These zero cost collar contracts may be terminated by the counterparties if the Company’s total cash and cash equivalents is less than $30,000 thousand at the end of a fiscal quarter, unless a waiver is obtained.

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Fair Value Measurements

3 Months Ended

Mar. 31, 2023

Fair Value Measurements [Abstract]

Fair Value Measurements

8. Fair Value Measurements

Fair Value of Financial Instruments

As of March 31, 2023, the following table represents the Company’s assets and liabilities measured at fair value on a recurring basis and the basis for that measurement (in thousands):

	Carrying Value March 31, 2023		Fair Value Measurement March 31, 2023		Quoted Prices in Active Markets for Identical Liability (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Derivative assets (other current assets)	$	2	$	2		—	$	2		—
Liabilities:
Derivative liabilities (other current liabilities)	$	2,641	$	2,641		—	$	2,641		—

As of December 31, 2022, the following table represents the Company’s liabilities measured at fair value on a recurring basis and the basis for that measurement (in thousands):

	Carrying Value December 31, 2022		Fair Value Measurement December 31, 2022		Quoted Prices in Active Markets for Identical Liability (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Liabilities:
Derivative liabilities (other current liabilities)	$	2,015	$	2,015		—	$	2,015		—

Items not reflected in the table above include cash equivalents, accounts receivable, other receivables, accounts payable, and other accounts payable, fair value of which approximate carrying values due to the short-term nature of these instruments. The fair value of assets and liabilities whose carrying value approximates fair value is determined using Level 2 inputs.

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Accrued Severance Benefits

3 Months Ended

Mar. 31, 2023

Accrued Severance Benefits [Abstract]

Accrued Severance Benefits

9. Accrued Severance Benefits

The majority of accrued severance benefits are for employees in the Company’s Korean subsidiary. Pursuant to the Employee Retirement Benefit Security Act of Korea, eligible employees and executive officers with one or more years of service are entitled to severance benefits upon the termination of their employment based on their length of service and rate of pay. As of March 31, 2023, 97% of all employees of the Company were eligible for severance benefits.

Changes in accrued severance benefits are as follows (in thousands):

	Three Months Ended
	March 31, 2023			March 31, 2022
Beginning balance	$	48,496		$	51,567
Provisions		2,330			1,670
Severance payments		(871	)		(1,389	)
Translation adjustments		(1,381	)		(1,077	)
		48,574			50,771
Less: Cumulative contributions to severance insurance deposit accounts		(24,747	)		(17,954	)
The National Pension Fund		(40	)		(50	)
Group severance insurance plan		(179	)		(195	)
Accrued severance benefits, net	$	23,608		$	32,572

The severance benefits funded through the Company’s National Pension Fund and group severance insurance plan will be used exclusively for payment of severance benefits to eligible employees. These amounts have been deducted from the accrued severance benefit balance.

Beginning in July 2018, the Company contributes to certain severance insurance deposit accounts a certain percentage of severance benefits that are accrued for eligible employees for their services from January 1, 2018 pursuant to Employee Retirement Benefit Security Act of Korea. These accounts consist of time deposits and other guaranteed principal and interest, and are maintained at insurance companies, banks or security companies for the benefit of employees. The Company deducts the contributions made to these severance insurance deposit accounts from its accrued severance benefits.

The Company is liable to pay the following future benefits to its non-executive employees upon their normal retirement age (in thousands):

	Severance benefit
Remainder of 2023	$	634
2024		906
2025		1,502
2026		1,829
2027		1,718
2028		3,699
2029 – 2033		21,043

The above amounts were determined based on the non-executive employees’ current salary rates and the number of service years that will be accumulated upon their retirement dates. These amounts do not include amounts that might be paid to non-executive employees that will cease working with the Company before their normal retirement ages.

Korea’s mandatory retirement age is 60 years of age or older under the Employment Promotion for the Aged Act. The Company sets the retirement age of employees at 60.

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Early Termination Charges

3 Months Ended

Mar. 31, 2023

Early Termination Charges [Abstract]

Early Termination Charges

10. Early Termination Charges

During the first quarter of 2023, the Company commenced the Program, which was available for the employees with more than 20 years of service. For the three months ended March 31, 2023, the Company recorded in its consolidated statement of operations $8,449 thousand of termination related charges as “early termination charges”, which are expected to be paid during the second quarter of 2023.

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Foreign Currency Loss, Net

3 Months Ended

Mar. 31, 2023

Foreign Currency Loss, Net [Abstract]

Foreign Currency Loss, Net

11. Foreign Currency Loss, Net

Net foreign currency gain or loss includes non-cash translation gain or loss associated with intercompany balances. A substantial portion of the Company’s net foreign currency gain or loss is non-cash translation gain or loss associated with intercompany long-term loans to the Company’s Korean subsidiary. The loans are denominated in U.S. dollars and are affected by changes in the exchange rate between the Korean won and the U.S. dollar. As of March 31, 2023 and December 31, 2022, the outstanding intercompany loan balances including accrued interest between the Korean subsidiary and the Dutch subsidiary were $301,860 thousand and $310,988 thousand, respectively. The Korean won to U.S. dollar exchange rates were 1,303.8:1 and 1,267.3:1 using the first base rate as of March 31, 2023 and December 31, 2022, respectively, as quoted by the KEB Hana Bank.

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Income Taxes

3 Months Ended

Mar. 31, 2023

Income Taxes [Abstract]

Income Taxes

12. Income Taxes

The Company and its subsidiaries file income tax returns in Korea, Japan, Taiwan, the U.S. and in various other jurisdictions. The Company is subject to income or non-income tax examinations by tax authorities of these jurisdictions for all open tax years.

For the three months ended March 31, 2023, the Company recorded an income tax benefit of $1,227 thousand, primarily related to its primary operating entity in Korea based on the estimated taxable loss for the respective period.

For the three months ended March 31, 2022, the Company recorded an income tax expense of $3,483 thousand, primarily related to its primary operating entity in Korea based on the estimated taxable income for the respective period.

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Geographic and Other Information

3 Months Ended

Mar. 31, 2023

Geographic and Other Information [Abstract]

Geographic and Other Information

13. Geographic and Other Information

The following sets forth information relating to the single operating segment (in thousands):

	Three Months Ended
	March 31, 2023		March 31, 2022
Revenues
Standard products business
Display Solutions	$	10,841	$	29,185
Power Solutions		40,673		64,825
Total standard products business	$	51,514	$	94,010
Transitional Fab 3 foundry services		5,491		10,083
Total revenues	$	57,005	$	104,093

	Three Months Ended
	March 31, 2023			March 31, 2022
Gross Profit
Standard products business	$	14,202		$	37,930
Transitional Fab 3 foundry services		(2,108	)		1,066
Total gross profit	$	12,094		$	38,996

The following is a summary of net sales—standard products business (which does not include the Transitional Fab 3 Foundry Services) by geographic region, based on the location to which the products are billed (in thousands):

	Three Months Ended
	March 31, 2023		March 31, 2022
Korea	$	16,496	$	31,030
Asia Pacific (other than Korea)		31,901		58,260
United States		1,045		2,864
Europe		2,072		1,856
Total	$	51,514	$	94,010

For the three months ended March 31, 2023 and 2022, of the Company’s net sales – standard products business in Asia Pacific (other than Korea), net sales – standard products business in China and Hong Kong together represented 57.9% and 71.1%, respectively, and net sales—standard products business in Vietnam represented 17.8% and 14.4%, respectively.

Net sales from the Company’s top ten largest customers in the standard products business (which does not include the Transitional Fab 3 Foundry Services) accounted for 71% and 72% for the three months ended March 31, 2023 and 2022, respectively.

For the three months ended March 31, 2023, the Company had two customers that represented 16.4% and 13.7% of its net sales—standard products business, respectively. For the three months ended March 31, 2022, the Company had two customers that represented 25.5% and 12.9% of its net sales—standard products business, respectively.

As of March 31, 2023, two customers of the Company’s standard products business accounted for 22.3% and 14.3% of its accounts receivable – standard products business (which does not include the Transitional Fab 3 Foundry Services), respectively. As of December 31, 2022, two customers of the Company’s standard products business accounted for 25.1% and 15.2% of its accounts receivable – standard products business (which does not include the Transitional Fab 3 Foundry Services), respectively.

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Accumulated Other Comprehensive Loss

3 Months Ended

Mar. 31, 2023

Accumulated Other Comprehensive Loss [Abstract]

Accumulated Other Comprehensive Loss

14. Accumulated Other Comprehensive Loss

Accumulated other comprehensive loss consists of the following as of March 31, 2023 and December 31, 2022, respectively (in thousands):

	March 31, 2023			December 31, 2022
Foreign currency translation adjustments	$	(13,236	)	$	(11,328	)
Derivative adjustments		(1,757	)		(1,225	)
Total	$	(14,993	)	$	(12,553	)

Changes in accumulated other comprehensive loss for the three months ended March 31, 2023 and 2022 are as follows (in thousands):

Three Months Ended March 31, 2023	Foreign currency translation adjustments			Derivative adjustments			Total
Beginning balance	$	(11,328	)	$	(1,225	)	$	(12,553	)
Other comprehensive loss before reclassifications		(1,908	)		(1,135	)		(3,043	)
Amounts reclassified from accumulated other comprehensive loss		—			603			603
Net current-period other comprehensive loss		(1,908	)		(532	)		(2,440	)
Ending balance	$	(13,236	)	$	(1,757	)	$	(14,993	)

Three Months Ended March 31, 2022	Foreign currency translation adjustments			Derivative adjustments			Total
Beginning balance	$	(770	)	$	(1,460	)	$	(2,230	)
Other comprehensive loss before reclassifications		(3,045	)		(1,264	)		(4,309	)
Amounts reclassified from accumulated other comprehensive loss		—			762			762
Net current-period other comprehensive loss		(3,045	)		(502	)		(3,547	)
Ending balance	$	(3,815	)	$	(1,962	)	$	(5,777	)

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Stock Repurchases

3 Months Ended

Mar. 31, 2023

Stock Repurchases [Abstract]

Stock Repurchases

15. Stock Repurchases

Accelerated Stock Repurchase Program

On December 21, 2021, the Board of Directors authorized the Company to repurchase up to $75,000 thousand of its outstanding common stock and the Company entered into an accelerated stock repurchase agreement (the “ASR Agreement”) with JPMorgan Chase Bank, National Association (“JPM”) to repurchase an aggregate of $37,500 thousand of its common stock.

Pursuant to the terms of the ASR Agreement dated December 21, 2021, the Company paid to JPM $37,500 thousand in cash and received an initial delivery of 994,695 shares of its common stock in the open market for an aggregate purchase price of $20,073 thousand and a price per share of $20.18 on December 22, 2021.

As of December 31, 2021, the Company accounted for the remaining portion of the ASR Agreement as a forward contract indexed to its own common stock and recorded $17,427 thousand in additional paid-in capital in stockholders’ equity in its consolidated balance sheets.

In March 2022, the previously announced repurchase of $37,500 thousand of the Company’s common stock was completed pursuant to the ASR Agreement, and as a result, the Company additionally received 1,031,576 shares of its common stock for an aggregate purchase price of $17,217 thousand at a price per share of $16.69, which was reclassified as treasury stock from additional paid-in capital in stockholder’s equity in its consolidated balance sheets.

Expanded Stock Repurchase Program

On August 31, 2022, the Board of Directors has authorized an expansion of the Company’s previously announced stock repurchase program from $75,000 thousand to $87,500 thousand of its common stock. The remaining $50,000 thousand of the expanded $87,500 thousand program was planned to be repurchased in the open market or through privately negotiated transactions. In connection with the repurchase program, the Company established a stock trading plan with Oppenheimer & Co. Inc. in accordance with Rule 10b5-1 under the Securities Exchange Act of 1934, as amended.

From September 2022 to December 2022, the Company repurchased 1,235,650 shares of its common stock in the open market for an aggregate purchase price of $12,511 thousand and a price per share of $10.13 under the stock repurchase program.

During the first quarter of 2023, the Company repurchased 1,238,472 shares of its common stock in the open market for an aggregate purchase price of $11,887 thousand and a price per share of $9.60 under the stock repurchase program.

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Earnings (Loss) Per Share

3 Months Ended

Mar. 31, 2023

Earnings Per Share [Abstract]

Earnings (Loss) Per Share

16. Earnings (Loss) Per Share

The following table illustrates the computation of basic and diluted earnings (loss) per common share for the three months ended March 31, 2023 and 2022:

	Three Months Ended
	March 31, 2023			March 31, 2022
	(In thousands of U.S. dollars, except share data)
Basic Earnings (Loss) per Share
Net income (loss)	$	(21,470	)	$	9,528
Basic weighted average common stock outstanding		43,390,832			45,603,208
Basic earnings (loss) per share	$	(0.49	)	$	0.21
Diluted Earnings (Loss) per Share
Net income (loss)	$	(21,470	)	$	9,528
Basic weighted average common stock outstanding		43,390,832			45,603,208
Net effect of dilutive equity awards		—			1,090,086
Diluted weighted average common stock outstanding		43,390,832			46,693,294
Diluted earnings (loss) per share	$	(0.49	)	$	0.20

Diluted earnings (loss) per share adjusts basic earnings (loss) per share for the potentially dilutive impact of stock options. As the Company has reported loss for the three months ended March 31, 2023, all potentially dilutive securities, including stock options, are antidilutive and accordingly not considered, therefore basic net loss per share equals diluted net loss per share.

The following outstanding instruments were excluded from the computation of diluted earnings (loss) per share, as they have an anti-dilutive effect on the calculation:

	Three Months Ended
	March 31, 2023		March 31, 2022
Options		1,116,158		130,000
Restricted Stock Units		1,434,827		—

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Merger Agreement

3 Months Ended

Mar. 31, 2023

Merger Agreement [Abstract]

Merger Agreement

17. Merger Agreement

On March 25, 2021, the Company, South Dearborn Limited, an exempted company incorporated in the Cayman Islands with limited liability (“Holdco”), formed by an affiliate of Wise Road Capital LTD (“Wise Road”), and Michigan Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of Holdco (“Merger Sub”), entered into an Agreement and Plan of Merger (as amended, the “Merger Agreement”), providing for, among other things and subject to the terms and conditions thereof, the merger of Merger Sub with and into the Company (the “Merger”), with the Company surviving the Merger as a wholly owned subsidiary of Holdco.

The closing of the Merger was subject to certain conditions, including clearance by the Committee on Foreign Investment in the United States (“CFIUS”) under the Defense Production Act of 1950, as amended. The Company and Holdco were advised that CFIUS clearance of the Merger would not be forthcoming and received permission from CFIUS to withdraw their joint filing. In connection therewith, the Company and Holdco entered into a Termination and Settlement Agreement, dated December 13, 2021 (the “Termination Agreement”), pursuant to which Holdco agreed to pay $70,200 thousand (the “Termination Fee”) to the Company on the terms specified in the Termination Agreement in satisfaction of Holdco’s obligation to pay a termination fee in connection with the termination of the Merger Agreement. On December 20, 2021, the Merger Agreement was terminated pursuant to the Termination Agreement after the Company’s receipt of a fee of $51,000 thousand from Holdco and a standby letter of credit, which secures a deferred fee of $19,200 thousand from Holdco due on or before March 31, 2022. As of December 31, 2021, of the Termination Fee, $19,200 thousand deferred fee was recorded as other receivables. In connection therewith, the Company, Holdco and Wise Road entered into a First Amendment to the Termination Agreement, dated April 4, 2022, pursuant to which Holdco paid $14,400 thousand on April 4, 2022, with $4,800 thousand remaining outstanding. The Company, Holdco and Wise Road entered into a Second Amendment to the Termination Agreement, dated August 5, 2022 pursuant to which Holdco paid $3,000 thousand on August 5, 2022, of the deferred fee and payment of the remaining $1,800 thousand was due on or before October 31, 2022. The Company, Holdco and Wise Road entered into a series of letter agreements pursuant to which the parties ultimately agreed to defer the remaining $1,800 thousand due on or before March 31, 2023. As of March 31, 2023, the remaining fee of $1,800 thousand was recorded as other receivables. On April 6, 2023, Holdco paid the remaining $1,800 thousand.

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Commitments and Contingencies

3 Months Ended

Mar. 31, 2023

Commitments and Contingencies [Abstract]

Commitments and Contingencies

18. Commitments and Contingencies

Advances to Suppliers

The Company, from time to time, may make advances in form of prepayments or deposits to suppliers, including external foundries, to meet its planned production. The Company recorded advances of $4,372 thousand and $6,605 thousand as other current assets as of March 31, 2023 and December 31, 2022, respectively.

COVID-19 Pandemic

In March 2020, the World Health Organization declared the COVID-19 outbreak a pandemic, and governmental authorities throughout the world implemented numerous restrictions and containment measures that resulted in rapidly changing market and economic conditions. Many of these restrictions and containment measures have since been lifted or scaled back. The Company will continue to monitor and evaluate the nature and scope of the impact of the COVID-19 pandemic to its business, consolidated results of operations, and financial condition, and may take actions it deems necessary or appropriate to respond in the event of a reemergence of the pandemic.

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Subsequent Events

3 Months Ended

Mar. 31, 2023

Subsequent Events [Abstract]

Subsequent Events

19. Subsequent Events

Derivative contracts

In April 2023, the Company and SC entered into derivative contract of zero cost collar for December 2023. The total notional amounts are $5,000 thousand.

In April 2023, the Company and NFIK entered into derivative contracts of zero cost collars for the period from January 2024 to June 2024. The total notional amounts are $18,000 thousand.

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Business, Basis of Presentation and Summary of Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2023

Business, Basis of Presentation and Significant Accounting Policies [Abstract]

Business

Business

Magnachip Semiconductor Corporation (together with its subsidiaries, the “Company”) is a designer and manufacturer of analog and mixed-signal semiconductor platform solutions for communications, Internet of Things (“IoT”) applications, consumer, computing, industrial and automotive applications.

The Company’s standard products business includes its Display Solutions and Power Solutions business lines. The Company’s Display Solutions products provide panel display solutions to major suppliers of large and small rigid and flexible panel displays, and a wide range of applications including smartphones, TVs, automotive and IT applications such as monitors, notebook PCs, tablet PCs as well as AR/VRs. The Company’s Power Solutions products include discrete and integrated circuit solutions for power management in communications, consumer, computing, servers, automotive, and industrial applications.

On September 1, 2020, the Company completed the sale of the Company’s Foundry Services Group business and its fabrication facility located in Cheongju, Korea, known as “Fab 4”. Following the consummation of the sale, and for up to three years, the Company is expected to provide transitional foundry services associated with its fabrication facility located in Gumi, Korea, known as “Fab 3”, at an agreed upon cost plus mark-up (the “Transitional Fab 3 Foundry Services”).

Basis of Presentation

Basis of Presentation

The accompanying unaudited interim consolidated financial statements of the Company have been prepared in accordance with generally accepted accounting principles in the United States of America (“U.S. GAAP”). These interim consolidated financial statements include normal recurring adjustments and the elimination of all intercompany accounts and transactions which are, in the opinion of management, necessary to provide a fair statement of the Company’s financial condition and results of operations for the periods presented. These interim consolidated financial statements are presented in accordance with Accounting Standards Codification (“ASC”) 270, “Interim Reporting” and, accordingly, do not include all of the information and note disclosures required by U.S. GAAP for complete financial statements, except for the changes below. The results of operations for the three months ended March 31, 2023 are not necessarily indicative of the results to be expected for a full year or for any other periods.

The December 31, 2022 balance sheet data was derived from the Company’s audited financial statements, but does not include all disclosures required by U.S. GAAP. The interim consolidated financial statements should be read in conjunction with the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2022.

There have been no material changes to the Company’s significant accounting policies as of and for the three months ended March 31, 2023 as compared to the significant accounting policies described in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2022.

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Inventories (Tables)

3 Months Ended

Mar. 31, 2023

Inventories [Abstract]

Summary of Inventories

Inventories as of March 31, 2023 and December 31, 2022 consist of the following (in thousands):

	March 31, 2023			December 31, 2022
Finished goods	$	5,523		$	6,799
Semi-finished goods and work-in-process		39,427			40,265
Raw materials		6,351			7,460
Materials in-transit		—			36
Less: inventory reserve		(14,941	)		(14,677	)
Inventories, net	$	36,360		$	39,883

Changes in Inventory Reserve

Changes in inventory reserve for the three months ended March 31, 2023 and 2022 are as follows (in thousands):

	Three Months Ended
	March 31, 2023			March 31, 2022
Beginning balance	$	(14,677	)	$	(5,730	)
Change in reserve
Inventory reserve charged to costs of sales		(2,584	)		(1,607	)
Sale of previously reserved inventory		1,476			1,452
		(1,108	)		(155	)
Write off		415			211
Translation adjustments		429			119
Ending balance	$	(14,941	)	$	(5,555	)

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Property, Plant and Equipment (Tables)

3 Months Ended

Mar. 31, 2023

Property, Plant and Equipment [Abstract]

Summary of Property, Plant and Equipment

Property, plant and equipment as of March 31, 2023 and December 31, 2022 are comprised of the following (in thousands):

	March 31, 2023			December 31, 2022
Buildings and related structures	$	24,214		$	24,780
Machinery and equipment		134,843			137,666
Finance lease right-of-use assets		707			389
Others		33,529			33,890
		193,293			196,725
Less: accumulated depreciation		(102,768	)		(101,502	)
Land		12,670			13,034
Construction in progress		1,373			2,490
Property, plant and equipment, net	$	104,568		$	110,747

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Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2023

Intangible Assets [Abstract]

Summary of Intangible Assets

Intangible assets as of March 31, 2023 and December 31, 2022 are comprised of the following (in thousands):

	March 31, 2023
	Gross amount		Accumulated amortization			Net amount
Intellectual property assets	$	8,916	$	(7,132	)	$	1,784
Intangible assets	$	8,916	$	(7,132	)	$	1,784

	December 31, 2022
	Gross amount		Accumulated amortization			Net amount
Intellectual property assets	$	9,111	$	(7,181	)	$	1,930
Intangible assets	$	9,111	$	(7,181	)	$	1,930

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Leases (Tables)

3 Months Ended

Mar. 31, 2023

Leases [Abstract]

Supplemental Balance Sheet Information

Supplemental balance sheets information related to leases as of March 31, 2023 and December 31, 2022 are as follows (in thousands):

Leases	Classification	March 31, 2023		December 31, 2022
Assets
Operating lease	Operating lease right-of-use assets	$	5,413	$	5,265
Finance lease	Property, plant and equipment, net		436		143
Total lease assets		$	5,849	$	5,408
Liabilities
Current
Operating	Operating lease liabilities	$	1,622	$	1,397
Finance	Other current liabilities		90		90
Non-current
Operating	Non-current operating lease liabilities		3,996		4,091
Finance	Other non-current liabilities		364		63
Total lease liabilities		$	6,072	$	5,641

Lease, Cost

The following table presents the weighted average remaining lease term and discount rate:

	March 31, 2023			December 31, 2022
Weighted average remaining lease term
Operating leases	3.4 years			3.7 years
Finance leases	4.1 years			2.4 years
Weighted average discount rate
Operating leases		6.6	%		6.6	%
Finance leases		7.7	%		7.6	%

Other Lease Information

The components of lease cost included in the Company’s consolidated statements of operations, are as follows (in thousands):

	Three Months Ended
	March 31, 2023		March 31, 2022
Operating lease cost	$	555	$	569
Finance lease cost
Amortization of right-of-use assets		32		16
Interest on lease liabilities		7		2
Total lease cost	$	594	$	587

The above table does not include an immaterial cost of short-term leases for the three months ended March 31, 2023 and 2022.

Other lease information is as follows (in thousands):

	Three Months Ended
	March 31, 2023		March 31, 2022
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	$	567	$	569
Operating cash flows from finance leases		7		2
Financing cash flows from finance leases		24		16

Schedule of Future Lease Payments

The aggregate future lease payments for operating and finance leases as of March 31, 2023 are as follows (in thousands):

	Operating Leases			Finance Leases
Remainder of 2023	$	1,448		$	91
2024		1,925			122
2025		1,419			121
2026		937			108
2027		644			95
Total future lease payments		6,373			537
Less: Imputed interest		(755	)		(83	)
Present value of future payments	$	5,618		$	454

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Accrued Expenses (Tables)

3 Months Ended

Mar. 31, 2023

Accrued Expenses [Abstract]

Summary of Accrued Expenses

Accrued expenses as of March 31, 2023 and December 31, 2022 are comprised of the following (in thousands):

	March 31, 2023		December 31, 2022
Payroll, benefits and related taxes, excluding severance benefits	$	14,475	$	7,620
Withholding tax attributable to intercompany interest income		473		43
Outside service fees		1,625		1,642
Others		552		383
Accrued expenses	$	17,125	$	9,688

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Derivative Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2023

Derivative Financial Instruments [Abstract]

Details of Derivative Contracts

Details of the zero cost collar contracts as of March 31, 2023 are as follows (in thousands):

Date of transaction	Total notional amount		Month of settlement
January 04, 2022	$	15,000	April 2023 to June 2023
March 07, 2022	$	24,000	July 2023 to December 2023
April 27, 2022	$	33,000	April 2023 to December 2023
March 08, 2023	$	18,000	July 2023 to December 2023

Details of the zero cost collar contracts as of December 31, 2022 are as follows (in thousands):

Date of transaction	Total notional amount		Month of settlement
January 04, 2022	$	30,000	January 2023 to June 2023
March 07, 2022	$	24,000	July 2023 to December 2023
April 27, 2022	$	42,000	January 2023 to December 2023

Fair Values of Outstanding Zero Cost Collar and Forward Contracts Recorded as Assets and Liabilities

The fair values of the Company’s outstanding zero cost collar contracts recorded as assets and liabilities as of March 31, 2023 and December 31, 2022 are as follows (in thousands):

Derivatives designated as hedging instruments:		March 31, 2023		December 31, 2022
Asset Derivatives:
Zero cost collars	Other current assets	$	2	$	—
Liability Derivatives:
Zero cost collars	Other current liabilities	$	2,641	$	2,015

Offsetting of Derivative Assets and Liabilities

Offsetting of derivative assets and liabilities as of March 31, 2023 is as follows (in thousands):

	Gross amounts of recognized Assets/liabilities		Gross amounts offset in the balance sheets		Net amounts of Assets/liabilities presented in the balance sheets		Gross amounts not offset in the balance sheets					Net amount
As of March 31, 2023							Financial instruments		Cash collateral pledged
Asset Derivatives:
Zero cost collars	$	2	$	—	$	2	$	—	$	—		$	2
Liability Derivatives:
Zero cost collars	$	2,641	$	—	$	2,641	$	—	$	(1,820	)	$	821

Offsetting of derivative liabilities as of December 31, 2022 is as follows (in thousands):

	Gross amounts of recognized liabilities		Gross amounts offset in the balance sheets		Net amounts of liabilities presented in the balance sheets		Gross amounts not offset in the balance sheets					Net amount
As of December 31, 2022							Financial instruments		Cash collateral pledged
Liability Derivatives:
Zero cost collars	$	2,015	$	—	$	2,015	$	—	$	(1,940	)	$	75

Impact of Derivative Instruments on Consolidated Statement of Operations

The following table summarizes the impact of derivative instruments on the consolidated statements of operations for the three months ended March 31, 2023 and 2022 (in thousands):

Derivatives in ASC 815 Cash Flow Hedging Relationships	Amount of Loss Recognized in AOCI on Derivatives						Location/Amount of Loss Reclassified from AOCI Into Statement of Operations							Location/Amount of Loss Recognized in Statement of Operations on Derivatives
	Three Months Ended March 31,							Three Months Ended March 31,							Three Months Ended March 31,
	2023			2022				2023			2022				2023			2022
Zero cost collars	$	(1,135	)	$	(1,264	)	Net sales	$	(603	)	$	(762	)	Other income, net	$	(54	)	$	(129	)
	$	(1,135	)	$	(1,264	)		$	(603	)	$	(762	)		$	(54	)	$	(129	)

Summary Of Cash Deposits

This cash deposit is recorded as hedge collateral on the consolidated balance sheets. Cash deposits as of March 31, 2023 and December 31, 2022 are as follows (in thousands):

Counterparty	March 31, 2023		December 31, 2022
SC	$	1,000	$	1,000
Total	$	1,000	$	1,000

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Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2023

Fair Value Measurements [Abstract]

Financial Assets and Liabilities Measured at Fair Value on Recurring Basis

As of March 31, 2023, the following table represents the Company’s assets and liabilities measured at fair value on a recurring basis and the basis for that measurement (in thousands):

	Carrying Value March 31, 2023		Fair Value Measurement March 31, 2023		Quoted Prices in Active Markets for Identical Liability (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Derivative assets (other current assets)	$	2	$	2		—	$	2		—
Liabilities:
Derivative liabilities (other current liabilities)	$	2,641	$	2,641		—	$	2,641		—

As of December 31, 2022, the following table represents the Company’s liabilities measured at fair value on a recurring basis and the basis for that measurement (in thousands):

	Carrying Value December 31, 2022		Fair Value Measurement December 31, 2022		Quoted Prices in Active Markets for Identical Liability (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Liabilities:
Derivative liabilities (other current liabilities)	$	2,015	$	2,015		—	$	2,015		—

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Accrued Severance Benefits (Tables)

3 Months Ended

Mar. 31, 2023

Accrued Severance Benefits [Abstract]

Changes in Accrued Severance Benefits

Changes in accrued severance benefits are as follows (in thousands):

	Three Months Ended
	March 31, 2023			March 31, 2022
Beginning balance	$	48,496		$	51,567
Provisions		2,330			1,670
Severance payments		(871	)		(1,389	)
Translation adjustments		(1,381	)		(1,077	)
		48,574			50,771
Less: Cumulative contributions to severance insurance deposit accounts		(24,747	)		(17,954	)
The National Pension Fund		(40	)		(50	)
Group severance insurance plan		(179	)		(195	)
Accrued severance benefits, net	$	23,608		$	32,572

Future Benefits Payments to Employees

The Company is liable to pay the following future benefits to its non-executive employees upon their normal retirement age (in thousands):

	Severance benefit
Remainder of 2023	$	634
2024		906
2025		1,502
2026		1,829
2027		1,718
2028		3,699
2029 – 2033		21,043

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Geographic and Other Information (Tables)

3 Months Ended

Mar. 31, 2023

Geographic and Other Information [Abstract]

Schedule of Operating Segments

The following sets forth information relating to the single operating segment (in thousands):

	Three Months Ended
	March 31, 2023		March 31, 2022
Revenues
Standard products business
Display Solutions	$	10,841	$	29,185
Power Solutions		40,673		64,825
Total standard products business	$	51,514	$	94,010
Transitional Fab 3 foundry services		5,491		10,083
Total revenues	$	57,005	$	104,093

	Three Months Ended
	March 31, 2023			March 31, 2022
Gross Profit
Standard products business	$	14,202		$	37,930
Transitional Fab 3 foundry services		(2,108	)		1,066
Total gross profit	$	12,094		$	38,996

Net Sales by Region, Based on Location of Products are Billed

The following is a summary of net sales—standard products business (which does not include the Transitional Fab 3 Foundry Services) by geographic region, based on the location to which the products are billed (in thousands):

	Three Months Ended
	March 31, 2023		March 31, 2022
Korea	$	16,496	$	31,030
Asia Pacific (other than Korea)		31,901		58,260
United States		1,045		2,864
Europe		2,072		1,856
Total	$	51,514	$	94,010

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Accumulated Other Comprehensive Loss (Tables)

3 Months Ended

Mar. 31, 2023

Accumulated Other Comprehensive Loss [Abstract]

Schedule of Accumulated Other Comprehensive Loss

Accumulated other comprehensive loss consists of the following as of March 31, 2023 and December 31, 2022, respectively (in thousands):

	March 31, 2023			December 31, 2022
Foreign currency translation adjustments	$	(13,236	)	$	(11,328	)
Derivative adjustments		(1,757	)		(1,225	)
Total	$	(14,993	)	$	(12,553	)

Changes in Accumulated Other Comprehensive Loss

Changes in accumulated other comprehensive loss for the three months ended March 31, 2023 and 2022 are as follows (in thousands):

Three Months Ended March 31, 2023	Foreign currency translation adjustments			Derivative adjustments			Total
Beginning balance	$	(11,328	)	$	(1,225	)	$	(12,553	)
Other comprehensive loss before reclassifications		(1,908	)		(1,135	)		(3,043	)
Amounts reclassified from accumulated other comprehensive loss		—			603			603
Net current-period other comprehensive loss		(1,908	)		(532	)		(2,440	)
Ending balance	$	(13,236	)	$	(1,757	)	$	(14,993	)

Three Months Ended March 31, 2022	Foreign currency translation adjustments			Derivative adjustments			Total
Beginning balance	$	(770	)	$	(1,460	)	$	(2,230	)
Other comprehensive loss before reclassifications		(3,045	)		(1,264	)		(4,309	)
Amounts reclassified from accumulated other comprehensive loss		—			762			762
Net current-period other comprehensive loss		(3,045	)		(502	)		(3,547	)
Ending balance	$	(3,815	)	$	(1,962	)	$	(5,777	)

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Earnings (Loss) Per Share (Tables)

3 Months Ended

Mar. 31, 2023

Earnings Per Share [Abstract]

Schedule of Computation of Basic and Diluted Earnings (Loss) Per Common Share

The following table illustrates the computation of basic and diluted earnings (loss) per common share for the three months ended March 31, 2023 and 2022:

	Three Months Ended
	March 31, 2023			March 31, 2022
	(In thousands of U.S. dollars, except share data)
Basic Earnings (Loss) per Share
Net income (loss)	$	(21,470	)	$	9,528
Basic weighted average common stock outstanding		43,390,832			45,603,208
Basic earnings (loss) per share	$	(0.49	)	$	0.21
Diluted Earnings (Loss) per Share
Net income (loss)	$	(21,470	)	$	9,528
Basic weighted average common stock outstanding		43,390,832			45,603,208
Net effect of dilutive equity awards		—			1,090,086
Diluted weighted average common stock outstanding		43,390,832			46,693,294
Diluted earnings (loss) per share	$	(0.49	)	$	0.20

Schedule of Antidilutive Securities Excluded from Computation of Earnings (Loss) Per Common Share

The following outstanding instruments were excluded from the computation of diluted earnings (loss) per share, as they have an anti-dilutive effect on the calculation:

	Three Months Ended
	March 31, 2023		March 31, 2022
Options		1,116,158		130,000
Restricted Stock Units		1,434,827		—

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Inventories, Summary of Inventories (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2021
Inventory, Net [Abstract]
Finished goods	$ 5,523	$ 6,799
Semi-finished goods and work-in-process	39,427	40,265
Raw materials	6,351	7,460
Materials in-transit	0	36
Less: inventory reserve	(14,941)	(14,677)	$ (5,555)	$ (5,730)
Inventories, net	$ 36,360	$ 39,883

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Inventories, Changes in Inventory Reserve (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Changes in Inventory Reserve [Abstract]
Beginning balance	$ (14,677)	$ (5,730)
Change in reserve [Abstract]
Inventory reserve charged to costs of sales	(2,584)	(1,607)
Sale of previously reserved inventory	1,476	1,452
Change in reserve	(1,108)	(155)
Write off	415	211
Translation adjustments	429	119
Ending balance	$ (14,941)	$ (5,555)

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Property, Plant and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Property, Plant and Equipment [Abstract]
Property, plant and equipment, gross	$ 193,293		$ 196,725
Less: accumulated depreciation	(102,768)		(101,502)
Land	12,670		13,034
Construction in progress	1,373		2,490
Property, plant and equipment, net	104,568		110,747
Depreciation expenses	4,193	$ 3,706
Buildings and Related Structures [Member]
Property, Plant and Equipment [Abstract]
Property, plant and equipment, gross	24,214		24,780
Machinery and Equipment [Member]
Property, Plant and Equipment [Abstract]
Property, plant and equipment, gross	134,843		137,666
Finance Lease Right-of-Use Assets [Member]
Property, Plant and Equipment [Abstract]
Property, plant and equipment, gross	707		389
Others [Member]
Property, Plant and Equipment [Abstract]
Property, plant and equipment, gross	$ 33,529		$ 33,890

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Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Intangible Assets [Abstract]
Gross amount	$ 8,916		$ 9,111
Accumulated amortization	(7,132)		(7,181)
Net amount	1,784		1,930
Amortization expense for intangible assets	164	$ 185
Intellectual Property Assets [Member]
Intangible Assets [Abstract]
Gross amount	8,916		9,111
Accumulated amortization	(7,132)		(7,181)
Net amount	$ 1,784		$ 1,930

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Leases, Summary (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Assets [Abstract]
Operating lease	$ 5,413	$ 5,265
Total lease assets	5,849	5,408
Current [Abstract]
Operating	1,622	1,397
Non-current [Abstract]
Operating	3,996	4,091
Total lease liabilities	$ 6,072	5,641
Maximum [Member]
Operating and Finance Leases [Abstract]
Remaining lease term	5 years
Minimum [Member]
Operating and Finance Leases [Abstract]
Remaining lease term	1 year
Operating Lease Right Of Use Assets [Member]
Assets [Abstract]
Operating lease	$ 5,413	5,265
Property, Plant and Equipment, Net [Member]
Assets [Abstract]
Finance lease	436	143
Current Operating Lease Liabilities [Member]
Current [Abstract]
Operating	1,622	1,397
Other Current Liabilities [Member]
Current [Abstract]
Finance	$ 90	$ 90
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Other Liabilities, Current	Other Liabilities, Current
Non Current Operating Lease Liabilities [Member]
Non-current [Abstract]
Operating	$ 3,996	$ 4,091
Other Noncurrent Liabilities [Member]
Non-current [Abstract]
Finance	$ 364	$ 63
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other Liabilities, Noncurrent	Other Liabilities, Noncurrent

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Leases, Weighted Average Remaining Lease Term and Discount Rate (Details)	Mar. 31, 2023	Dec. 31, 2022
Weighted average remaining lease term [Abstract]
Operating leases	3 years 4 months 24 days	3 years 8 months 12 days
Finance leases	4 years 1 month 6 days	2 years 4 months 24 days
Weighted average discount rate [Abstract]
Operating leases	6.60%	6.60%
Finance leases	7.70%	7.60%

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Leases, Components of Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Leases [Abstract]
Operating lease cost	$ 555	$ 569
Finance lease cost [Abstract]
Amortization of right-of-use assets	32	16
Interest on lease liabilities	7	2
Total lease cost	$ 594	$ 587

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Leases, Other Lease Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash paid for amounts included in the measurement of lease liabilities [Abstract]
Operating cash flows from operating leases	$ 567	$ 569
Operating cash flows from finance leases	7	2
Financing cash flows from finance leases	$ 24	$ 16

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Leases, Aggregate Future Lease Payment (Details) $ in Thousands	Mar. 31, 2023 USD ($)
Operating Leases [Abstract]
Remainder of 2023	$ 1,448
2024	1,925
2025	1,419
2026	937
2027	644
Total future lease payments	6,373
Less: Imputed interest	(755)
Present value of future payments	5,618
Finance Leases [Abstract]
Remainder of 2023	91
2024	122
2025	121
2026	108
2027	95
Total future lease payments	537
Less: Imputed interest	(83)
Present value of future payments	$ 454

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Accrued Expenses (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Accrued Expenses [Abstract]
Payroll, benefits and related taxes, excluding severance benefits	$ 14,475		$ 7,620
Withholding tax attributable to intercompany interest income	473		43
Outside service fees	1,625		1,642
Others	552		383
Accrued expenses	17,125		$ 9,688
Early termination charges	$ 8,449	$ 0

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Derivative Financial Instruments, Derivative Contracts (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Zero Cost Collar One [Member]
Zero Cost Collar Contracts [Abstract]
Date of transaction	Jan. 04, 2022	Jan. 04, 2022
Total notional amount	$ 15,000	$ 30,000
Month of settlement, start	2023-04	2023-01
Month of settlement, end	2023-06	2023-06
Zero Cost Collar Two [Member]
Zero Cost Collar Contracts [Abstract]
Date of transaction	Mar. 07, 2022	Mar. 07, 2022
Total notional amount	$ 24,000	$ 24,000
Month of settlement, start	2023-07	2023-07
Month of settlement, end	2023-12	2023-12
Zero Cost Collar Three [Member]
Zero Cost Collar Contracts [Abstract]
Date of transaction	Apr. 27, 2022	Apr. 27, 2022
Total notional amount	$ 33,000	$ 42,000
Month of settlement, start	2023-04	2023-01
Month of settlement, end	2023-12	2023-12
Zero Cost Collar Four [Member]
Zero Cost Collar Contracts [Abstract]
Date of transaction	Mar. 08, 2023
Total notional amount	$ 18,000
Month of settlement, start	2023-07
Month of settlement, end	2023-12

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Derivative Financial Instruments, Fair Values of Outstanding Zero Cost Collar and Forward Contracts Recorded as Assets and Liabilities (Details) - Zero Cost Collars [Member] - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Asset Derivatives [Abstract]
Derivative asset	$ 2	$ 0
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Other Assets, Current	Other Assets, Current
Liability Derivatives [Abstract]
Derivative liabilities	$ 2,641	$ 2,015
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Other Liabilities, Current	Other Liabilities, Current

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Derivative Financial Instruments, Offsetting of Derivative Assets and Liabilities (Details) - Zero Cost Collars [Member] - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Asset Derivatives [Abstract]
Gross amounts of recognized assets	$ 2
Gross amounts offset in the balance sheets	0
Net amounts of assets presented in the balance sheets	2	$ 0
Gross amounts not offset in the balance sheets Financial instruments	0
Gross amounts not offset in the balance sheets Cash collateral pledged	0
Net amount	2
Liability Derivatives [Abstract]
Gross amounts of recognized liabilities	2,641	2,015
Gross amounts offset in the balance sheets	0	0
Net amounts of liabilities presented in the balance sheets	2,641	2,015
Gross amounts not offset in the balance sheets, Financial instruments	0	0
Gross amounts not offset in the balance sheets, Cash collateral pledged	(1,820)	(1,940)
Net amount	$ 821	$ 75

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Derivative Financial Instruments, Impact of Derivative Instruments on Consolidated Statement of Operations (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Derivatives in ASC 815 Cash Flow Hedging Relationships [Abstract]
Location/Amount of Loss Reclassified from AOCI Into Statement of Operations	$ 603	$ 762
Estimated amount reclassified from accumulated other comprehensive loss into loss	1,757
Cash Flow Hedging [Member]
Derivatives in ASC 815 Cash Flow Hedging Relationships [Abstract]
Amount of Loss Recognized in AOCI on Derivatives	(1,135)	(1,264)
Location/Amount of Loss Reclassified from AOCI Into Statement of Operations	(603)	(762)
Cash Flow Hedging [Member] | Other Income, Net [Member]
Derivatives in ASC 815 Cash Flow Hedging Relationships [Abstract]
Location/Amount of Loss Recognized in Statement of Operations on Derivatives	(54)	(129)
Zero Cost Collars [Member] | Cash Flow Hedging [Member]
Derivatives in ASC 815 Cash Flow Hedging Relationships [Abstract]
Amount of Loss Recognized in AOCI on Derivatives	(1,135)	(1,264)
Location/Amount of Loss Reclassified from AOCI Into Statement of Operations	$ (603)	$ (762)
Derivative Instrument, Gain (Loss) Reclassified from AOCI into Income, Effective Portion, Statement of Income or Comprehensive Income [Extensible Enumeration]	Revenues	Revenues
Zero Cost Collars [Member] | Cash Flow Hedging [Member] | Other Income, Net [Member]
Derivatives in ASC 815 Cash Flow Hedging Relationships [Abstract]
Location/Amount of Loss Recognized in Statement of Operations on Derivatives	$ (54)	$ (129)

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Derivative Financial Instruments, Cash Deposits (Details) - Zero Cost Collar and Forward Contracts [Member] - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Cash Deposits [Abstract]
Cash deposits	$ 1,000	$ 1,000
NFIK [Member]
Additional Cash Collateral [Abstract]
Threshold amount of cash collateral	500
Threshold additional amount of cash collateral	1,820	1,840
Termination provisions for cash and cash equivalents	30,000
SC [Member]
Cash Deposits [Abstract]
Cash deposits	1,000	1,000
Additional Cash Collateral [Abstract]
Threshold amount of cash collateral	$ 500
Threshold additional amount of cash collateral		$ 100

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Fair Value Measurements (Details) - Recurring [Member] - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Carrying Value [Member]
Assets [Abstract]
Derivative asset	$ 2
Liabilities [Abstract]
Derivative liabilities	2,641	$ 2,015
Estimate of Fair Value Measurement [Member]
Assets [Abstract]
Derivative asset	2
Liabilities [Abstract]
Derivative liabilities	2,641	2,015
Quoted Prices in Active Markets for Identical Liability (Level 1) [Member]
Assets [Abstract]
Derivative asset	0
Liabilities [Abstract]
Derivative liabilities	0	0
Significant Other Observable Inputs (Level 2) [Member]
Assets [Abstract]
Derivative asset	2
Liabilities [Abstract]
Derivative liabilities	2,641	2,015
Significant Unobservable Inputs (Level 3) [Member]
Assets [Abstract]
Derivative asset	0
Liabilities [Abstract]
Derivative liabilities	$ 0	$ 0

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Accrued Severance Benefits, Changes in Accrued Severance Benefits (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Accrued Severance Benefits [Abstract]
Percentage of employees eligible for severance benefits	97.00%
Beginning balance	$ 48,496	$ 51,567
Provisions	2,330	1,670
Severance payments	(871)	(1,389)
Translation adjustments	(1,381)	(1,077)
Ending balance	48,574	50,771
Less: Cumulative contributions to severance insurance deposit accounts	(24,747)	(17,954)
The National Pension Fund	(40)	(50)
Group severance insurance plan	(179)	(195)
Accrued severance benefits, net	$ 23,608	$ 32,572	$ 23,121

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Accrued Severance Benefits, Future Benefits Payments to Employees (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($)
Future Benefits to Non-Executive Employees [Abstract]
Remainder of 2023	$ 634
2024	906
2025	1,502
2026	1,829
2027	1,718
2028	3,699
2029 - 2033	$ 21,043
Retirement age of employees	60 years
Korea [Member] | Minimum [Member]
Future Benefits to Non-Executive Employees [Abstract]
Korea's mandatory retirement age	60 years

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Early Termination Charges (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Early Termination Charges [Abstract]
Minimum requisite period of service for voluntary resignation program	20 years
Early termination charges	$ 8,449	$ 0

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Foreign Currency Loss, Net (Details) $ in Thousands	Mar. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Foreign Currency Loss, Net [Abstract]
Intercompany loan balances	$ 301,860	$ 310,988
Exchange rates using first base rate	1,303.8	1,267.3

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Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Income Taxes [Abstract]
Income tax expense (benefit)	$ (1,227)	$ 3,483

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Geographic and Other Information, Schedule of Operating Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Geographic and Other Information [Abstract]
Total revenues	$ 57,005	$ 104,093
Total gross profit	12,094	38,996
Standard Products Business [Member]
Geographic and Other Information [Abstract]
Total revenues	51,514	94,010
Total gross profit	14,202	37,930
Fab 3 Foundry Services [Member]
Geographic and Other Information [Abstract]
Total revenues	5,491	10,083
Total gross profit	(2,108)	1,066
Operating Segments [Member] | Standard Products Business [Member]
Geographic and Other Information [Abstract]
Total revenues	51,514	94,010
Operating Segments [Member] | Standard Products Business [Member] | Display Solutions [Member]
Geographic and Other Information [Abstract]
Total revenues	10,841	29,185
Operating Segments [Member] | Standard Products Business [Member] | Power Solutions [Member]
Geographic and Other Information [Abstract]
Total revenues	$ 40,673	$ 64,825

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Geographic and Other Information, Net Sales by Region, Based on Location of Products are Billed (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Net Sales Based on Location of Products Business [Abstract]
Total revenues	$ 57,005	$ 104,093
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Top Customer One [Member]
Net Sales Based on Location of Products Business [Abstract]
Concentration risk, percentage	22.30%		25.10%
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Top Customer Two [Member]
Net Sales Based on Location of Products Business [Abstract]
Concentration risk, percentage	14.30%		15.20%
Standard Products Business [Member]
Net Sales Based on Location of Products Business [Abstract]
Total revenues	$ 51,514	94,010
Standard Products Business [Member] | Korea [Member]
Net Sales Based on Location of Products Business [Abstract]
Total revenues	16,496	31,030
Standard Products Business [Member] | Asia Pacific (Other Than Korea) [Member]
Net Sales Based on Location of Products Business [Abstract]
Total revenues	31,901	58,260
Standard Products Business [Member] | United States [Member]
Net Sales Based on Location of Products Business [Abstract]
Total revenues	1,045	2,864
Standard Products Business [Member] | Europe [Member]
Net Sales Based on Location of Products Business [Abstract]
Total revenues	$ 2,072	$ 1,856
Standard Products Business [Member] | Customer Concentration Risk [Member] | Net Sales [Member] | Top Ten Customers [Member]
Net Sales Based on Location of Products Business [Abstract]
Concentration risk, percentage	71.00%	72.00%
Standard Products Business [Member] | Customer Concentration Risk [Member] | Net Sales [Member] | Top Customer One [Member]
Net Sales Based on Location of Products Business [Abstract]
Concentration risk, percentage	16.40%	25.50%
Standard Products Business [Member] | Customer Concentration Risk [Member] | Net Sales [Member] | Top Customer Two [Member]
Net Sales Based on Location of Products Business [Abstract]
Concentration risk, percentage	13.70%	12.90%
Standard Products Business [Member] | Geographic Concentration Risk [Member] | Net Sales [Member] | CHINA, HONG KONG [Member]
Net Sales Based on Location of Products Business [Abstract]
Concentration risk, percentage	57.90%	71.10%
Standard Products Business [Member] | Geographic Concentration Risk [Member] | Net Sales [Member] | VIET NAM [Member]
Net Sales Based on Location of Products Business [Abstract]
Concentration risk, percentage	17.80%	14.40%

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Accumulated Other Comprehensive Loss, Schedule of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Accumulated Other Comprehensive Loss [Abstract]
Foreign currency translation adjustments	$ (13,236)	$ (11,328)
Derivative adjustments	(1,757)	(1,225)
Total	$ (14,993)	$ (12,553)

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Accumulated Other Comprehensive Loss, Changes in Accumulated Other Comprehensive Income Loss (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Changes in Accumulated Other Comprehensive Loss [Roll Forward]
Beginning balance	$ 428,153	$ 452,762
Total other comprehensive loss	(2,440)	(3,547)
Ending balance	393,353	461,162
Foreign Currency Translation Adjustments [Member]
Changes in Accumulated Other Comprehensive Loss [Roll Forward]
Beginning balance	(11,328)	(770)
Other comprehensive loss before reclassifications	(1,908)	(3,045)
Amounts reclassified from accumulated other comprehensive loss (income)	0	0
Total other comprehensive loss	(1,908)	(3,045)
Ending balance	(13,236)	(3,815)
Derivative Adjustments [Member]
Changes in Accumulated Other Comprehensive Loss [Roll Forward]
Beginning balance	(1,225)	(1,460)
Other comprehensive loss before reclassifications	(1,135)	(1,264)
Amounts reclassified from accumulated other comprehensive loss (income)	603	762
Total other comprehensive loss	(532)	(502)
Ending balance	(1,757)	(1,962)
Accumulated Other Comprehensive Income (Loss) [Member]
Changes in Accumulated Other Comprehensive Loss [Roll Forward]
Beginning balance	(12,553)	(2,230)
Other comprehensive loss before reclassifications	(3,043)	(4,309)
Amounts reclassified from accumulated other comprehensive loss (income)	603	762
Total other comprehensive loss	(2,440)	(3,547)
Ending balance	$ (14,993)	$ (5,777)

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Stock Repurchases, Accelerated Stock Repurchase Program (Details) - USD ($) $ / shares in Units, $ in Thousands				3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 22, 2021	Dec. 21, 2021	Mar. 31, 2022	Dec. 31, 2021	Dec. 31, 2022	Aug. 31, 2022
Stock Repurchases Program [Abstract]
Accelerated stock repurchase				$ 0
Accelerated share repurchases, settlement (payment) or receipt						$ 37,500
Accelerated share repurchase program adjustment (in shares)		994,695
Aggregate purchase price of shares		$ 20,073
Sale of stock issue price (in dollars per share)		$ 20.18
Additional Paid-In Capital [Member]
Stock Repurchases Program [Abstract]
Accelerated stock repurchase				17,217	$ 17,427
Treasury Stock [Member]
Stock Repurchases Program [Abstract]
Accelerated stock repurchase				(17,217)
Accelerated Stock Repurchase Program [Member]
Stock Repurchases Program [Abstract]
Accelerated stock repurchase			$ 37,500
Accelerated share repurchases, settlement (payment) or receipt	$ 37,500			$ 37,500
Accelerated Stock Repurchase Program [Member] | Treasury Stock [Member] | Reclassified as Treasury Stock from Additional Paid-In-Capital [Member]
Stock Repurchases Program [Abstract]
Accelerated share repurchase program adjustment (in shares)				1,031,576
Aggregate purchase price of shares	$ 17,217			$ 17,217
Sale of stock issue price (in dollars per share)	$ 16.69
Stock Repurchase Program [Member]
Stock Repurchases Program [Abstract]
Stock repurchase program, authorized amount			$ 75,000				$ 87,500

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Stock Repurchases, Expanded Stock Repurchase Program (Details) - Stock Repurchase Program [Member] - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	4 Months Ended
	Mar. 31, 2023	Dec. 31, 2022	Aug. 31, 2022	Dec. 21, 2021
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock repurchase program, authorized amount			$ 87,500	$ 75,000
Stock repurchase program, remaining authorized repurchase amount			$ 50,000
Stock repurchased (in shares)	1,238,472	1,235,650
Aggregate purchase price	$ 11,887	$ 12,511
Sale of aggregate purchase price (in dollars per share)	$ 9.6	$ 10.13

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Earnings (Loss) Per Share - Schedule of Computation of Basic and Diluted Earnings (Loss) Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Basic Earnings (Loss) per Share [Abstract]
Net income (loss)	$ (21,470)	$ 9,528
Basic weighted average common stock outstanding (in shares)	43,390,832	45,603,208
Basic earnings (loss) per share (in dollars per share)	$ (0.49)	$ 0.21
Diluted Earnings (Loss) per Share [Abstract]
Basic weighted average common stock outstanding (in shares)	43,390,832	45,603,208
Net effect of dilutive equity awards (in shares)	0	1,090,086
Diluted weighted average common stock outstanding (in shares)	43,390,832	46,693,294
Diluted earnings (loss) per share (in dollars per share)	$ (0.49)	$ 0.2

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Earnings (Loss) Per Share - Schedule of Antidilutive Securities Excluded from Computation of Earnings (Loss) Per Common Share (Details) - shares	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Options [Member]
Computation of Diluted Earnings (Loss) Per Share [Abstract]
Outstanding units and warrants excluded from computation of diluted earnings (loss) per share/unit (in shares)	1,116,158	130,000
Restricted Stock Units [Member]
Computation of Diluted Earnings (Loss) Per Share [Abstract]
Outstanding units and warrants excluded from computation of diluted earnings (loss) per share/unit (in shares)	1,434,827	0

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Merger Agreement (Details) - USD ($) $ in Thousands		12 Months Ended
	Dec. 20, 2021	Dec. 31, 2021	Apr. 06, 2023	Mar. 31, 2023	Aug. 05, 2022	Apr. 04, 2022
Business combination, description [Abstract]
Merger termination fee		$ 70,200
Proceed from termination cost	$ 51,000
Secures deferred merger termination fee	$ 19,200
Subsequent Event [Member]
Business combination, description [Abstract]
Termination agreement amount received			$ 1,800
Termination Agreement [Member]
Business combination, description [Abstract]
Termination agreement amount received					$ 3,000	$ 14,400
Termination agreement outstanding amount					$ 1,800	$ 4,800
Letter Agreement [Member] | Due on or Before March 31, 2023 [Member]
Business combination, description [Abstract]
Letter agreement outstanding amount				$ 1,800
Other Receivable [Member]
Business combination, description [Abstract]
Secures deferred merger termination fee		$ 19,200
Other Receivable [Member] | Letter Agreement [Member]
Business combination, description [Abstract]
Secures deferred merger termination fee				$ 1,800

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Commitments and Contingencies (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Payments to Suppliers and Employees [Abstract]
Prepayments to suppliers	$ 4,372	$ 6,605

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Subsequent Events (Details) - Subsequent Event [Member] - Zero Cost Collar and Forward Contracts [Member] $ in Thousands	Apr. 30, 2023 USD ($)
SC [Member]
Derivative Contracts [Abstract]
Derivative notional amount	$ 5,000
NFIK [Member]
Derivative Contracts [Abstract]
Derivative notional amount	$ 18,000