We support clients across the U.S.
Consumer goods & packaging
Industrial manufacturing
Retail brands & private-label production
Construction materials & building products
Film & flexible packaging
If you’re a brand owner, manufacturer or waste management partner looking to optimize your plastic streams, we’d love to work with you.
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About Us
Your Partner for Advanced Post Industrial Plastic Recycling & Circular Solutions
At Cornerstone Plastic Recycling, we’re committed to turning plastic waste into high-value resources — for our customers, our community and our planet. Based in Charleston S.C, we serve manufacturers, brand-owners and waste-stream partners across the region and across the USA and Canada with reliable, transparent, circular recycling solutions.
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Our Story
Founded in 2022 by Sal Rigoroso (Formally Charleston Plastics), Cornerstone Plastic Recycling was born from a vision: that plastic waste shouldn’t be the end of the line — it should be the start of new value. With backgrounds in materials engineering and sustainability, our leadership assembled a team dedicated to financial, environmental and operational efficiency in recycling. Starting with post-industrial plastics, we’ve grown into a full-service recycling provider with scaling infrastructure, quality control, and trusted downstream markets.
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What We Do
Plastic Collection & Sorting — we accept and manage plastic waste streams (e.g., bottles, film, rigid, flex) and sort by polymer, resin type and color to maximise value.
Recycling & Reprocessing — using industry-leading equipment and protocols, we process plastics into clean flakes, pellets or other feedstock for reuse in manufacturing.
Closed-Loop & Circular Solutions — we partner with brands and OEMs to design and implement flexible systems where recycled plastic re-enters production, reducing reliance on virgin resin.
Consulting & Compliance Support — we help clients meet sustainability goals, recycled content targets, regulatory standards, and document chain-of-custody for plastics streams.
By providing the full continuum — from waste stream to recycled feedstock — we help our clients streamline their supply chain, reduce costs, minimise environmental impact and strengthen their brand’s sustainability story.
Our Core Values
Quality & Integrity – We maintain rigorous standards at every step: collection, sorting, processing, and delivery. We stand behind accuracy, consistency and traceability.
Environmental Responsibility – We believe in responsible recycling that honours the planet: reducing waste, diverting plastic from landfills and lowering carbon footprint.
Customer-Focused Innovation – We work closely with clients to solve their unique challenges: custom resin blends, color match, recycled content percentages, just-in-time supply.
Transparency & Partnership – We build strong relationships with suppliers, collectors and customers; we share data, communicate openly, and deliver on commitments.
Why Choose Us?
Specialized in Post-Industrial Plastic Waste (not generic waste) — our team understands polymer streams, resin codes, market values, end-markets, and regulations.
Fully integrated: one point of contact from pickup to delivered recycled feedstock — fewer hand-offs, fewer surprises.
Proven results: We help our clients reduce material waste, cut raw-material costs, increase recycled content, and improve sustainability KPIs.
Commitment to traceability: from waste-stream intake to final product, we maintain documentation and supply-chain clarity.
Sustainability partner: we help brands not just manage waste but transform it into a compelling environmental differentiator.
Ready to turn your plastic waste into value? Contact us today for a free consultation and custom recycling plan. We’ll walk you through our process, show you how we’ve helped others, and deliver a roadmap to recycled-content success.
Our Mission
To enable a circular economy for plastics by delivering scalable, high-quality recycling services and feedstock, empowering manufacturers and brands to shift from take-make-dispose toward reuse, regeneration and resilience