March 27 (SeeNews) - Bulgarian petrochemical group Insa plans to invest 6.0 million euro ($8.09 million) and expects its sales to grow by 40% this year, the company's owner said. “The company is financially stable and is pursuing its strategy to invest in innovations and modernisation each year,” Georgi Samuilov told SeeNews in an e-mailed interview. Insa sales rose to 177 million levs ($122.5 million/90.81 million euro) in 2008 from 115 million levs in 2007. The company put 10 milllion euro in a new hydrogen-producing plant in Rakovski, in northern Bulgaria.