Aceto Corp. Chairman, CEO and President Leonard Schwartz to Ring NASDAQ Closing Bell December 4, 2008

• Press Release
• Source: Aceto Corporation
• On 6:59 am EST, Monday December 1, 2008

LAKE SUCCESS, N.Y., Dec. 1, 2008 (GLOBE NEWSWIRE) -- Aceto Corporation (NasdaqGS:ACET - News), a global leader in the sourcing, quality assurance, regulatory support, marketing and distribution of chemically derived pharmaceuticals, biopharmaceuticals, specialty chemicals and crop protection products, today announced that Leonard S. Schwartz, Chairman, CEO and President, will ring the closing bell at the NASDAQ MarketSite in New York City's Times Square at 4:00PM Eastern time on Thursday, December 4, 2008. In addition to being broadcast on national business television at 4:00 pm ET (unless breaking news precludes such airing), the bell-ringing ceremony will be webcast live on NASDAQ's website and on the NASDAQ Tower in Times Square. Interested parties should go to http://www.nasdaq.com/reference/marketsite_about.stm, scroll to the bottom of the page and click on ``MarketSite Web Cam.'' Viewers must have Windows Media Player to view the web cam; it can be downloaded at the above-referenced link.

ABOUT ACETO

Aceto Corporation, incorporated in 1947, is a global leader in the sourcing, quality assurance, regulatory support, marketing and distribution of chemically-derived pharmaceuticals, biopharmaceuticals, specialty chemicals and crop protection products. With a physical presence in ten countries, Aceto distributes over 1000 chemicals and pharmaceuticals used principally as raw materials in the pharmaceutical, agricultural, surface coating/ink and general chemical consuming industries. Aceto's global operations, including a staff of 26 in Shanghai and 12 in India are unique in the industry and enable its worldwide sourcing and regulatory capabilities.(ACET-F)

          Aceto Corporation
          Theodore Ayvas, Director of Corporate Communications & Investor 
           Relations
          (516) 627-6000
          www.aceto.com