I-1. Reason for Selection (Current Market Situations)
SNG's market scales continue growing up rapidly, 76,000,000 U.S dollars in 2008 will grow up more than 10 times in 2 years. it is expected to reach 826 million U.S. dollars in 2010. and it represented to increase about 30% than last year.
I-2. Research Subject
Hypothesis
SNG has several problem in present and would happe