PRESS RELEASE

COMPX REPORTS FIRST QUARTER 2017 RESULTS

DALLAS, TEXAS … May 5, 2017 … CompX International Inc. (NYSE MKT: CIX) announced today sales of $29.9 million for the first quarter of 2017 compared to $27.1 million in the same period of 2016.  Operating income was $4.5 million in the first quarter of 2017 compared to $3.4 million in the same period of 2016.  Net income was $3.1 million, or $0.25 per basic and diluted common share, for the first quarter of 2017 compared to $2.2 million, or $0.18 per basic and diluted common share, in the same period of 2016.

Net sales increased primarily due to higher Security Products sales volumes to existing government security customers, partially offset by a decrease in sales of security products to an original equipment manufacturer of recreational transportation products.  Operating income increased primarily due to the higher sales and manufacturing efficiencies facilitated by the higher production volumes at Security Products.

"The first quarter featured solid sales performances in both the Security Products and Marine Components segments," commented David A. Bowers, CEO, "including exceptional demand for government security applications. We continue to benefit from innovation and diversification in our product offerings, particularly with respect to the recreational boat markets served by our growing Marine Components segment. We believe that continuous development of new product features companywide will broaden our sales base and help mitigate the impact of general market fluctuations."

CompX is a leading manufacturer of security products and recreational marine components.  It operates from four locations in the U.S. and employs approximately 500 people.

Forward-Looking Statements

Statements in this release relating to matters that are not historical facts are forward-looking statements based upon management's belief and assumptions using currently available information.  Although CompX believes the expectations reflected in such forward-looking statements are reasonable, it cannot give any assurances that these expectations will prove to be correct.  Such statements, by their nature, involve substantial risks and uncertainties that could significantly impact expected results, and actual future results could differ materially from those described in such forward-looking statements.  While it is not possible to identify all factors, CompX continues to face many risks and uncertainties.  Among the factors that could cause actual future results to differ materially include, but are not limited to, general economic and political conditions, changes in raw material and other operating costs, competitive products and prices, the impact of current or future government regulations, the ability to sustain or increase operating income improvement resulting from cost control initiatives, uncertainties associated with the development of new product features, potential difficulties in implementing new manufacturing and accounting software, and other risks and uncertainties detailed in CompX's Securities and Exchange Commission filings.  Should one or more of these risks materialize or if the consequences worsen, or if the underlying assumptions prove incorrect, actual results could differ materially from those currently forecasted or expected.  CompX disclaims any intention or obligation to publicly update or revise such statements whether as a result of new information, future events or otherwise.

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COMPX INTERNATIONAL INC.

SUMMARY OF CONSOLIDATED OPERATIONS

(In millions, except per share amounts)

(Unaudited)

		Three months ended
		March 31,
		2016				2017
Net sales		$	27.1			$	29.9
Cost of goods sold			18.9				20.2
Gross profit			8.2				9.7
Selling, general and administrative expense			4.8				5.2
Operating income			3.4				4.5
Interest income			-				0.3
Income before taxes			3.4				4.8
Provision for income taxes			1.2				1.7
Net income		$	2.2			$	3.1
Basic and diluted net income per common share		$	0.18			$	0.25
Weighted average diluted common
shares outstanding			12.4				12.4

		December 31,				March 31,
		2016				2017
Assets						(Unaudited)
Current assets:
Cash and equivalents		$	33.2			$	30.1
Accounts receivable, net			10.3				13.0
Inventories, net			15.0				15.3
Prepaid expenses and other			0.7				0.8
Total current assets			59.2				59.2
Note receivable from affiliate			27.4				29.0
Goodwill			23.7				23.7
Net property and equipment			33.1				32.7
Other noncurrent			0.6				0.7
Total assets		$	144.0			$	145.3
Liabilities and Stockholders' Equity
Current liabilities:
Accounts payable and accrued liabilities		$	11.9			$	9.6
Income taxes			1.4				2.5
Total current liabilities			13.3				12.1
Deferred income taxes			4.9				4.9
Stockholders' equity			125.8				128.3
Total liabilities and stockholders' equity		$	144.0			$	145.3