TriMas
:
May 18, 2007

TriMas Corporation's Common Stock to Begin Trading on the New York Stock Exchange

TriMas Corporation's Common Stock to Begin Trading on the New York Stock Exchange

BLOOMFIELD HILLS, Mich., May 18 /PRNewswire-FirstCall/ -- TriMas Corporation's ("TriMas") common stock, par value $0.01 per share, began trading on the New York Stock Exchange under the ticker symbol "TRS" effective with the opening of trading on May 18, 2007. The listing requirements of the New York Stock Exchange require that TriMas disclose that additional information is available upon which the New York Stock Exchange relied to list TriMas' common stock, and is included in TriMas' listing application with the New York Stock Exchange. Such information is available to the public upon request.

About TriMas

Headquartered in Bloomfield Hills, Michigan, TriMas is a diversified growth company of high-end, specialty niche businesses, manufacturing a variety of products for commercial, industrial and consumer markets worldwide. TriMas is organized into five strategic business groups: Packaging Systems, Energy Products, Industrial Specialties, RV & Trailer Products, and Recreational Accessories. TriMas has nearly 5,000 employees at 80 different facilities in 10 countries.

SOURCE TriMas Corporation

CONTACT:
E.R. "Skip" Autry
Chief Financial Officer
TriMas Corporation
1-248-631-5496