Segment Information

In the first quarter of 2018, TriMas realigned its reporting structure into three reportable segments: Packaging, Aerospace, and Specialty Products. Each of these segments has discrete financial information that is regularly evaluated by TriMas' president and chief executive officer (chief operating decision maker) in determining resource, personnel and capital allocation, as well as assessing strategy and performance. The Company utilizes its proprietary TriMas Business Model as a standardized set of processes to manage and drive results and strategy across its multi-industry businesses.

Within the Company's reportable segments, there are no individual products or product families for which reported net sales accounted for more than 10% of the Company's consolidated net sales. See below for more information regarding the types of products and services provided within each reportable segment:

Packaging – Designs and manufactures specialty, highly engineered closure and dispensing systems for a range of end markets, including steel and plastic within industrial and consumer packaging applications.

Aerospace – Designs and manufactures a diverse range of products, including highly-engineered fasteners, collars, blind bolts, rivets and precision-machined components, for use in focused markets within the aerospace industry. In general, these products are customer-specific and are manufactured utilizing customer-qualified and proprietary processes.

Specialty Products – Designs and manufactures metallic and non-metallic industrial sealing, fastener and specialty products for the petrochemical, petroleum refining, oil field, water/waste water treatment and other industrial markets; highly-engineered high-pressure and low-pressure steel cylinders for the transportation, storage and dispensing of compressed gases; and natural gas powered wellhead engines, compressors, gas production equipment and chemical pumps for use at well sites in the oil and gas industry.

Segment activity is as follows (dollars in thousands):



	Three months ended March 31,
	2018		2017
Net Sales
Packaging	$	88,200	$	80,960
Aerospace	45,810		45,420
Specialty Products	83,090		73,450
Total	$	217,100	$	199,830
Operating Profit (Loss)
Packaging	$	19,580	$	16,900
Aerospace	5,080		5,060
Specialty Products	9,650		1,510
Corporate income (expense)^(a)	900		(7,560		)
Total	$	35,210	$	15,910

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^(a)	During the first quarter of 2018, the Company removed an obligation from its balance sheet, resulting in an approximate $8.2 million non-cash reduction in selling, general and administrative expenses. See Note 10, "Commitments and Contingencies," for further details.