About Us

From where we started, to where we are going.

SGP Inc. is a certification company that was created at the behest of the California Film Extruders and Converters Association (CFECA) in 2009 to help plastic bag manufacturers understand how plastic bags can be sustainable.

SGP company works with plastic bag manufacturers to encourage the use of recycled polyethylene plastics and to use low pollution manufacturing techniques.

SGP Inc. has expanded the scope for sustainable plastics to include plastic packaging, plastic bottles, and paper products.

SGP can provide audit services for your company to reduce the energy usage, reduce the plastic pollution, reduce the carbon footprint, and increase the recycling rate at your company. SGP can provide training and education seminars on sustainability for plastic parts and plastic manufacturing.

Dr. Joseph Greene is the president and founder of SGP Incorporated. He has a Ph.D. in Chemical Engineering from the University of Michigan. He is a professor of Mechanical Engineering and Sustainable Manufacturing from California State University, Chico.