Luminex Corporation First Quarter Earnings Release Scheduled for May 7, 2009

Luminex Corporation (NASDAQ:LMNX) today announced that it expects to report first quarter results on Thursday, May 7, 2009. Results are scheduled for release after the close of trading.

Management will hold a conference call to discuss the operating highlights and financial results for the first quarter ended March 31, 2009, on May 7, 2009, at 5:00 p.m. Eastern time.

The conference call will be webcast live and will be accompanied by a slide presentation, both of which may be accessed at Luminex Corporation's website at http://www.luminexcorp.com. Simply log on to the web at the address above, go to the Company section and access the Investor Relations link. Please go to the website at least 15 minutes prior to the call to register, download and install any necessary audio/video software. If you are unable to participate during the live webcast, the call and slides will be archived for six months on the website using the 'replay' link.

The use of pop-up blocking software may impair your ability to view webcasts. If you use this software, press and hold the CTRL key when you click on the Register button. Please contact your IT group if you are unable to override this feature. Unauthorized recording or downloading of this event is not permitted.

About Luminex Corporation

Luminex Corporation develops, manufactures and markets proprietary biological testing technologies with applications throughout the diagnostic and life sciences industries. The Company's xMAP® multiplex solutions include an open-architecture, multi-analyte technology platform that delivers fast, accurate and cost-effective bioassay results to markets as diverse as pharmaceutical drug discovery, clinical diagnostics and biomedical research, including the genomics and proteomics research markets. The Company's xMAP technology is sold worldwide and is already in use in leading clinical laboratories as well as major pharmaceutical, diagnostic and biotechnology companies. Further information on Luminex Corporation or xMAP technology can be obtained at www.luminexcorp.com.

Statements made in this release that express Luminex's or management's intentions, plans, beliefs, expectations or predictions of future events are forward-looking statements. The words "believe," "expect," "intend," "estimate," "anticipate," "will," "could," "should" and similar expressions are intended to further identify such forward-looking statements for purposes of the Private Securities Litigation Reform Act of 1995. It is important to note that the Company's actual results or performance could differ materially from those anticipated or projected in such forward-looking statements. Factors that could cause Luminex's actual results or performance to differ materially include risks and uncertainties relating to, among others, market demand and acceptance of Luminex's products, the Company's dependence on strategic partners for development, commercialization and distribution of products, concentration of the Company's revenue in a limited number of strategic partners, fluctuations in quarterly results due to a lengthy and unpredictable sales cycle and bulk purchases of consumables, Luminex's ability to scale manufacturing operations and manage operating expenses, gross margins and inventory levels, potential shortages of components, competition, the timing of regulatory approvals, the implementation, including any modification, of the Company's strategic operating plans, risks and uncertainties associated with implementing our acquisition strategy and the ability to integrate acquired companies or selected assets into our consolidated business operations, as well as the risks discussed under the heading "Risk Factors" in Luminex's Reports on Forms 10-K and 10-Q, as filed with the Securities and Exchange Commission. The forward-looking statements contained herein represent the judgment of Luminex as of the date of this press release, and Luminex expressly disclaims any intent, obligation or undertaking to release publicly any updates or revisions to any forward-looking statements to reflect any change in Luminex's expectations with regard thereto or any change in events, conditions or circumstances on which any such statements are based.