# Mango Materials

> Mango Materials is a biomanufacturing company that converts waste methane - the same gas that vents from landfills and wastewater plants - into biodegradable polyhydroxyalkanoate (PHA) pellets sold under the YOPP brand. The pellets replace conventional plastics in fibers, films, rigid goods, and 3D-printing feedstock, and they fully biodegrade in soil, freshwater, and marine environments.

- **Founded:** 2010
- **Headquarters:** Vacaville, California, United States
- **Founders:** Molly Morse (Co-founder & CEO), Allison Pieja (Co-founder & CTO), Anne Schauer-Gimenez (Co-founder & COO)
- **Team size:** ~22
- **Products:** YOPP, YOPP+, YOPP Sandbox Toy Set, Gas fermentation platform
- **Notable:** Opened first-of-a-kind methane-to-PHA Launch Facility in Vacaville, California, Certified B Corporation, Selected as a fellow of the Unreasonable Group

## Products & services

- **YOPP** — Biodegradable PHA biopolymer pellets ('You Omit Polluting Plastics') used for fibers, films, rigid goods, and 3D printing feedstock.
- **YOPP+** — Methane-based PHA grade aimed at higher-performance applications and fully marine-biodegradable end uses.
- **YOPP Sandbox Toy Set** — A 3-piece consumer beach toy set (bucket, scoop, sifter) molded from biodegradable PHA.
- **Gas fermentation platform** — Proprietary process where methanotrophic bacteria are fed waste methane and accumulate PHA, which is harvested, purified, and compounded into pellets.

## Achievements

- Opened first-of-a-kind methane-to-PHA Launch Facility in Vacaville, California
- Certified B Corporation
- Selected as a fellow of the Unreasonable Group
- DOE and BioMADE grant recipient (2024)
- Product collaborations with Stella McCartney, Allbirds, and Natura
- Berkeley Lab feature for 'carbon-negative materials with ancient microbes' (2024)

## Latest updates

- **2025-07** — Closed an additional venture financing round to scale Vacaville operations.
- **2025-11** — Released the YOPP Sandbox Toy Set - first consumer-facing product made from methane-derived PHA.
- **2024-07** — Berkeley Lab profile on carbon-negative materials produced from ancient methanotrophic microbes.
- **2024** — Awarded DOE and BioMADE grants for distributed PHA manufacturing and biopolymer film R&D.
- **2023** — Ribbon-cutting at the Easterly Wastewater Treatment Plant Launch Facility in Vacaville.

## Links

- Website: https://mangomaterials.com
- LinkedIn: https://www.linkedin.com/company/mango-materials
- Twitter/X: https://twitter.com/mangomaterials
- Instagram: https://www.instagram.com/mangomaterials
- Facebook: https://www.facebook.com/mangomaterials

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Profile page: https://yespress.io/mango-materials
Published by YesPress — https://yespress.io
Last updated: 2026-06-28