The article is unclear on what this actually is. Pure cellulose? Cellulose acetate? Cellulose based plastics have been around for a century, but making them is

The article is unclear on what this actually is. Pure cellulose? Cellulose acetate? Cellulose based plastics have been around for a century, but making them is apparently too expensive for packaging. [1] Is this new stuff cheaper to make? [1] https://en.wikipedia.org/wiki/Bioplastic https://en.wikipedia.org/wiki/Bioplastic