TriMas Corporation (NASDAQ: TRS) – a diversified global manufacturer of engineered and applied products – today announced that it has upsized its previously announced public offering from 3,750,000 to 4,500,000 shares of its common stock and priced the offering at a price to the public of $35.40. The underwriters have a 30-day option to purchase up to an additional 675,000 shares from TriMas. Settlement of the offering is expected to occur on September 16, 2012. TriMas expects to use its proceeds from the sale of the common stock for general corporate purposes. Deutsche Bank Securities and J.P. Morgan are acting as joint bookrunners for the offering. BofA Merrill Lynch, Goldman, Sachs & Co. and Wells Fargo Securities are also acting as joint bookrunners for the offering. KeyBanc, Barrington Research Associates, Roth Capital Partners and Sidoti & Company are acting as the co-managers for the offering. The public offering is being made only by means of a prospectus and related prospectus supplement, copies of which may be obtained from either: Deutsche Bank Securities Inc., Attention: Prospectus Group, 60 Wall Street, New York, New York 10005-2836, telephone: 800-503-4611, or by emailing: prospectus.CPDG@db.com; or J.P. Morgan Securities LLC, Attention: Broadridge Financial Solutions, 1155 Long Island Avenue, Edgewood, New York 11717-8309, telephone: 866-803-9204. The common stock will be offered pursuant to an effective registration statement filed with the Securities and Exchange Commission. This press release shall not constitute an offer to sell or a solicitation of an offer to buy, nor shall there be any sale of these securities in any state or jurisdiction in which such an offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction. About TriMas Headquartered in Bloomfield Hills, Michigan, TriMas Corporation (NASDAQ: TRS) provides engineered and applied products for growing markets worldwide. TriMas is organized into six reportable segments: Packaging, Energy, Aerospace & Defense, Engineered Components, Cequent APEA and Cequent Americas. TriMas has approximately 5,500 employees at more than 60 facilities in 17 countries. Cautionary Notice Regarding Forward-looking Statements Any "forward-looking" statements contained herein, including those relating to market conditions or the Company's financial condition and results, expense reductions, liquidity expectations, business goals and sales growth, involve risks and uncertainties, including, but not limited to, risks and uncertainties with respect to general economic and currency conditions, various conditions specific to the Company's business and industry, the Company's leverage, liabilities imposed by the Company's debt instruments, market demand, competitive factors, supply constraints, material and energy costs, technology factors, litigation, government and regulatory actions, the Company's accounting policies, future trends, and other risks which are detailed in the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2012, and in the Company's Quarterly Reports on Form 10-Q. These risks and uncertainties may cause actual results to differ materially from those indicated by the forward-looking statements. All forward-looking statements made herein are based on information currently available, and the Company assumes no obligation to update any forward-looking statements.