Geographic and Other Information

12 Months Ended

Dec. 31, 2021

Segment Reporting [Abstract]

Geographic and Segment Information

18. Geographic and Other Information

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

	Year Ended December 31,
	2021		2020		2019
Revenues
Standard products business
Display Solutions	$	205,322	$	299,057	$	308,531
Power Solutions		227,777		166,462		176,316
Total standard products business		433,099		465,519		484,847
Transitional Fab 3 foundry services		41,131		41,540		35,824
Total revenues	$	474,230	$	507,059	$	520,671

	Year Ended December 31,
	2021		2020		2019
Gross Profit
Standard products business	$	149,596	$	127,099	$	116,397
Transitional Fab 3 foundry services		3,947		1,218		—
Total gross profit	$	153,543	$	128,317	$	116,397

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):

	Year Ended December 31,
	2021		2020		2019
Korea	$	113,776	$	106,415	$	132,622
Asia Pacific (other than Korea)		306,333		347,597		343,652
United States		6,052		5,147		2,399
Europe		5,698		4,317		4,801
Others		1,240		2,043		1,373
Total	$	433,099	$	465,519	$	484,847

For the years ended December 31, 2021, 2020 and 2019, of the Company’s net sales—standard products business in Asia Pacific (other than Korea), net sales—standard products business in Greater China (China and Hong Kong) represented 65.8%, 82.0% and 95.8%, respectively, and net sales—standard products business in Vietnam represented 26.4%, 14.4% and 0.7%, 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 80%, 88% and 90% for the years ended December 31, 2021, 2020 and 2019, respectively.

For the year ended December 31, 2021, the Company had two customers that represented 42.5% and 10.4% of its net sales—standard products business, and for the year ended December 31, 2020, the Company had one customer that represented 56.2% of its net sales—standard products business, and for the year ended December 31, 2019, the Company had one customer that represented 53.8% of its net sales—standard products business.

As of December 31, 2021 and 2020, one customer accounted for 25.6% and 45.1% of accounts receivable, respectively.

98% of the Company’s property, plant and equipment are located in Korea as of December 31, 2021.