PRESS RELEASE

Detrex Corporation Announces Stock Purchase by a Shareholder

Southfield, Michigan – May 12, 2006 - Detrex Corporation (DTRX.PK), a diversified manufacturer of PVC and CPVC pipe, duct and shapes and specialty chemicals including lubricant additives and high purity hydrochloric acid, has been informed that on May 8, 2006, Summit Capital Partners, LP of Seattle, Washington purchased 213,800 shares of common stock of the Corporation from another large shareholder in a private transaction. As a result of that transaction, Summit Capital Partners, LP and its affiliates now owns or controls approximately 36.5% of the Corporation’s issued and outstanding common stock and is the Corporation’s largest shareholder. Immediately prior to the transaction, the Board of Directors amended the Corporation’s By-Laws to opt out of Michigan’s Control Share Acquisitions Act. The Act would have prohibited Summit Capital from exercising voting power over the acquired shares without the approval of disinterested shareholders.

At the same time the Board amended the Corporation’s Shareholder Rights Plan designed to protect its shareholders from certain unsolicited takeover proposals. The amendment raised the threshold for beneficial ownership from 30% to 40% of the outstanding common stock before the Shareholder Rights are triggered.

Statements included in this press release that are not historical in nature are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995 (the “1995 Act”). The words “believe,” “expect,” “anticipate,” “estimate,” “guidance,” “target” and similar expressions identify forward-looking statements. The Company cautions readers that forward-looking statements are subject to certain risks and uncertainties, which could cause actual results to differ materially from those projected in the forward-looking statements. Certain risks and uncertainties are identified from time to time in the Company’s reports. Some factors that could cause results to differ materially from those projected in the forward-looking statements include: market conditions, environmental remediation costs, pension expense and funding requirements, liquidation value of assets, and marketability of real estate and the market value and future liquidity of Detrex stock. The Company claims the protection of the safe harbor for forward-looking statements contained in the 1995 Act.