Lianhai company plans to have an annual output of n-butanol and acetone 600,000 tons. The first phase has been begun to construct at the end of August 2007,and will be completed in June 2008, which occupies land of 150 mu and has production scale of 50,000 tons annually; the second phase will be begun to construct in September 2008, and will be completed in March 2009; and the third phase will be begun to construct in June 2009, and will be completed in 2010.