Revenues and accounts receivable from the Company's largest customers were as follows (in thousands):


	% of Total Revenue for the Three Months Ended March 31,		Accounts Receivable as of
Customer	2024	2023	March 31, 2024
A	41%	30%	$	40,021
B	25%	26%	$	40,165
C	16%	21%	$	15,289

Revenues from outside of North America represented approximately 98% and 97% of consolidated revenue for the three months ended March 31, 2024 and 2023, respectively. Revenues by geographic area are as follows (in thousands):


	Three Months Ended March 31,
Country	2024		2023
South Korea	$	102,398	$	66,060
China		57,470		57,427
Japan		1,254		1,647
Other non-U.S. locations		1,665		1,337
Total non-U.S. locations		162,787		126,471
United States		2,472		3,996
Total revenue	$	165,259	$	130,467

The Company attributes revenue to different geographic areas on the basis of the location of the customer.


	March 31, 2024		December 31, 2023
United States	$	117,389	$	118,250
Ireland		43,703		42,203
Other		14,804		14,697
Total property and equipment, net	$	175,896	$	175,150

Substantially all chemical materials were purchased from one supplier. See Note 13 for further explanation.