Latest Press biogas biopolymers methane Share The Digest highlights a Multi-Slide Guide to Mango Materials technology December 24, 2025 By Mango Materials Mango Materials is tackling plastic pollution by using a microbial process to convert waste methane, such as biogas from wastewater treatment, into biodegradable, often carbon-negative polyhydroxyalkanoate (PHA) under its YOPP™ brand, with a goal to scale up production to compete in the global plastics market.