Bio-based plastics can be broadly categorized into three types.

Type 1 includes both biodegradable and non-biodegradable materials that are derived from petroleum.

Type 2 is based on renewable resources such as starch, cellulose, and proteins.

Type 3 is a combination of both biosources and petroleum and includes polyesters and thermosets.

Each type has its own advantages and disadvantages, and different companies specialize in producing different types of bio-based plastics. It's important to choose the right type of bio-based plastic based on your specific application and environmental goals.