US BioEnergy Begins Production at Marion, South Dakota Ethanol Facility

  
    
  
  
    
      US BioEnergy Corporation (NASDAQ:USBE), a leading ethanol producer in 
      the United States, announced today that US Bio Marion, its Marion, S.D. 
      ethanol plant, began production in February. The company acquired the 
      110 million gallon per year (mmgy) ethanol plant while under 
      construction in August 2007.
    
    
      US Bio Marion, located north of Marion in southeastern South Dakota, has 
      the capacity to produce approximately 110 million gallons of ethanol and 
      320,000 tons of distillers grains per year from about 40 million bushels 
      of corn provided by local farmers and has created nearly 45 new jobs.
    
    
      “We are excited to have our fifth plant 
      operating and extend our congratulations to the Marion team,” 
      Gordon Ommen, CEO of US BioEnergy, stated. “US 
      Bio Marion provides domestically produced biofuel from locally grown 
      corn, which not only reduces our country’s 
      dependence on foreign oil, but also benefits the local economy.”
    
    
      About US BioEnergy Corporation
    
    
      US BioEnergy Corporation (NASDAQ: USBE), based in St. Paul, Minn., is a 
      leading producer and marketer of ethanol and distillers grains. Founded 
      in 2004, the company currently owns and operates five ethanol plants in 
      Albert City, Iowa, Marion, S.D., Ord and Platte Valley, Neb., and 
      Woodbury, Mich. Three additional ethanol plants are currently under 
      construction in Hankinson, N.D., Dyersville, Iowa, and Janesville, Minn. 
      Upon completion of these initiatives, the company will own and operate 
      eight plants with combined expected ethanol production capacity of 750 
      million gallons.
    
    
      Safe Harbor Statement
    
    
      Certain matters discussed in this news release are "forward-looking 
      statements." The Private Securities Litigation Reform Act of 1995 has 
      established that these statements qualify for safe harbors from 
      liability. Forward-looking statements may include words like "believe," 
      "anticipate," "target," "expect," "pro forma," "estimate," "intend," 
      "guidance" or words of similar meaning. Forward-looking statements 
      describe future plans, objectives, expectations or goals. Although US 
      BioEnergy Corporation believes that its expectations are based on 
      reasonable assumptions, all forward-looking statements involve risk and 
      uncertainty. Therefore, actual results could vary materially from what 
      we expect. Please review our filings the Securities and Exchange 
      Commission, including Quarterly Report on Form 10-Q for the year ended 
      September 30, 2007, for important risk factors that could cause results 
      to differ materially from those in any such forward-looking statements. 
      Any forward-looking statement speaks only as of the date such statement 
      was made, and the company does not undertake any obligation to update 
      any forward-looking statement to reflect events or circumstances after 
      the date on which such statement was made except as required by 
      applicable laws or regulations.