Bay Polymer LLC, part of the Siwin Corporation family, is a Northern-California plastic recycling business. Our founders have over 30 years of experience in the plastic recycling industry.

Today, our business specializes in selling reprocessed and virgin materials and buying scrap and regrind materials. We also offer tolling services for our customers. Along with our recycling expertise, Bay Polymer prioritizes excellent customer service and quality production.

We look forward to partnering with you for successful material flow solutions
• Plastic Recycling • Buy & Sell Plastic Scrap • Sell Reprocessed Material