Core Molding Technologies has four major customers, Navistar, Inc. (“Navistar”), Volvo Group North America, LLC (“Volvo”), PACCAR, Inc. (“PACCAR”) and Universal Forest Products, Inc. (“UFP”). Major customers are defined as customers whose sales individually consist of more than ten percent of total sales during any reporting period in the current year. The following table presents sales revenue for the above-mentioned customers for the three and nine months ended September 30, 2018 and 2017:



	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2018		2017		2018		2017
Navistar product sales	$	14,123,000	$	11,319,000	$	37,939,000	$	30,495,000
Navistar tooling sales	1,031,000		12,000		1,043,000		90,000
Total Navistar sales	15,154,000		11,331,000		38,982,000		30,585,000

Volvo product sales	11,037,000		7,261,000		33,222,000		20,044,000
Volvo tooling sales	11,000		432,000		54,000		8,011,000
Total Volvo sales	11,048,000		7,693,000		33,276,000		28,055,000

PACCAR product sales	10,684,000		7,316,000		25,984,000		19,168,000
PACCAR tooling sales	321,000		50,000		6,384,000		2,932,000
Total PACCAR sales	11,005,000		7,366,000		32,368,000		22,100,000

UFP product sales	7,212,000		—		21,261,000		—
UFP tooling sales	240,000		—		240,000		—
Total UFP sales	7,452,000		—		21,501,000		—

Other product sales	19,249,000		11,697,000		68,837,000		41,016,000
Other tooling sales	768,000		407,000		1,360,000		852,000
Total other sales	20,017,000		12,104,000		70,197,000		41,868,000

Total product sales	62,305,000		37,593,000		187,243,000		110,723,000
Total tooling sales	2,371,000		901,000		9,081,000		11,885,000
Total sales	$	64,676,000	$	38,494,000	$	196,324,000	$	122,608,000