Shares of Cereplast Inc. (PINK: CERP), a company engaged in the development and commercialization of bio-based resins, are soaring in trading today. At last check, CERP shares were trading 58.14% higher at $0.0340 on above average volume of 48.41 million. The stock touched an intra-day high of $0.04 earlier today. CERP shares have gained more than 69% in the last three trading sessions.