COLLEGE STATION, TX–Apr 2, 2008 — O.I. Corporation (NasdaqGM:OICO – News) today announced that it has entered into an agreement with DANI Instruments, S.p.A., which will allow OI to begin selling DANI’s sample-introduction and detector accessories on a world-wide basis. “We are pleased to enter into this strategic alliance with DANI, a long-established and internationally well-known analytical instrument company,” stated Bruce Lancaster, CEO of OI. “This partnership will allow us to expand our product portfolio and capitalize on the outstanding technology developed by DANI,” he added. Umberto Saini, President of DANI, commented, “We have heavily focused our efforts in recent years on designing and developing new technology to improve performance in gas chromatography. With its strong U.S. presence, we are confident OI can leverage its sales channels and our industry leading technology to increase market penetration, favorably impacting both of our organizations.” OI will begin integrating the DANI accessories immediately and anticipates offering them for sale beginning in May 2008. “The addition of the DANI products to the OI portfolio broadens the scope of our application reach, thereby increasing our ability to address current customer requirements and opening the door to new markets and opportunities,” remarked Craig Marvin, OI’s Vice President of Sales and Marketing. Based in Cologno Monzese, Italy, DANI was established in 1975 by a group of analytical instrumentation experts who have partnered with the most prestigious Italian scientific institutes to develop new techniques and applications in the area of gas chromatography. DANI’s instruments are known worldwide for their reliability and versatility. About O.I. Corporation: O.I. Corporation, dba O.I. Analytical, develops, manufactures, sells, and services analytical instrumentation that detects, measures, analyzes, and monitors chemicals in liquids, solids, and gases. Providing products used to digest, extract, and separate components of chemical mixtures, the Company designs application-specific solutions for various industries including environmental testing, defense, and petrochemical. Headquartered in College Station, Texas, the Company’s products are sold worldwide. This press release includes certain statements that may be deemed to be “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. These statements can sometimes be identified by our use of forward-looking words such as “may,” “will,” “anticipate,” “believe,” “expect,” “project,” or “intend.” All statements, other than statements of historical facts, included in this press release that address activities, events or developments that the Company expects, believes or anticipates will or may occur in the future, are forward-looking statements. These statements are based on certain assumptions and analyses made by the Company in light of its experience and its perception of historical trends, current conditions, expected future developments and other factors it believes are appropriate in the circumstances. Such statements are subject to a number of assumptions, risks and uncertainties, many of which are beyond the control of the Company. Investors are cautioned that any such statements are not guarantees of future performance and that actual results or developments may differ materially from those projected in the forward-looking statements.