Ocean Bound Plastic (OBP) Supply Chain

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1. What is Ocean Bound Plastic (OBP)?

Ocean Bound Plastic (OBP) is defined by Zero Plastics Oceans (ZPO) as plastic waste that is at risk of entering the ocean. Specifically, it refers to plastic within a 50 km radius of coastlines, as well as plastics from rivers, shorelines, and coastal areas, that have not been properly managed. Without intervention, this material would likely end up in marine ecosystems. The OBP standard, governed by the non-profit Zero Plastics Oceans, provides a rigorous framework for collection, recycling, and certification, ensuring that plastic waste is intercepted before it becomes marine litter.

For B2B buyers, OBP represents a premium recycled feedstock that combines environmental impact with traceable supply chains. Unlike generic PCR (Post-Consumer Recycled), OBP carries a documented provenance that appeals to brands targeting net-zero plastic leakage and UN Sustainable Development Goal 14 (Life Below Water).

2. OBP Collection Types: Fishing Gear, Riverine & Coastal

OBP is categorized into three primary collection streams, each with distinct logistics, contamination profiles, and recycling pathways. Understanding these types is critical for supply chain managers and procurement specialists.

2.1 Fishing Gear (Abandoned, Lost, or Discarded – ALDFG)

Derelict fishing nets, ropes, and traps (often called “ghost gear”) constitute a high-volume, high-impact OBP source. These materials are typically collected via partnerships with fishing communities, port authorities, and NGOs. Fishing gear OBP is often made of HDPE, PP, or nylon (PA). It requires specialized shredding and washing due to salt, sand, and organic matter. The resulting PCR pellets have high mechanical properties, suitable for automotive, industrial packaging, and outdoor furniture.

2.2 Riverine OBP

Plastic collected from rivers, estuaries, and waterways before it reaches the ocean. Riverine OBP is often heterogeneous (bottles, bags, wrappers) and may contain high moisture and organic residues. Collection booms, river barriers, and community cleanups are common. This stream requires intensive sorting and washing. The PCR output is often used for non-food packaging, construction materials, and textile fibers (with GRS certification).

2.3 Coastal OBP

Plastic collected from beaches, shorelines, and coastal communities (within 50 km of the coast). This includes consumer waste, microplastics, and mixed packaging. Coastal OBP is often degraded by UV and salt, leading to lower intrinsic viscosity (IV) for PET and reduced mechanical strength for polyolefins. However, with advanced compounding, it can be used in dark-colored masterbatches, pallets, and heavy-duty bags.

3. ISCC PLUS OBP Certification: The Gold Standard for Traceability

ISCC PLUS (International Sustainability & Carbon Certification) is a globally recognized certification scheme that covers the entire supply chain of recycled and bio-based materials. When combined with OBP, ISCC PLUS OBP certification verifies that plastic waste was collected from ocean-bound environments and processed through a mass balance or physical segregation system. Key requirements include:

• Chain of Custody: Documented from collection point to final product.
• Social & Environmental Criteria: No child labor, fair wages, and biodiversity protection.
• Greenhouse Gas Reduction: Minimum 50% CO₂e reduction vs. virgin plastic (verified by life cycle assessment).
• Third-Party Audits: Annual audits by accredited bodies like Control Union or SGS.

Topcentral® holds both ISCC PLUS and GRS certifications for its OBP-to-PCR pellet production lines. This dual certification allows B2B customers to claim both “Ocean Bound Plastic” and “Recycled Content” in their products, meeting EU Single-Use Plastics Directive and US FTC Green Guides requirements.

4. Traceability Chain: From OBP Collection to PCR Pellet

A credible OBP supply chain requires end-to-end traceability. Here is the step-by-step process used by Topcentral® and certified recyclers:

1. Collection & Segregation: OBP is collected by authorized waste pickers, cooperatives, or municipal systems. Each batch is weighed, categorized (fishing gear/riverine/coastal), and tagged with a unique ID.
2. Pre-processing & Baling: Material is washed, dried, and baled at regional hubs. Bales are labeled with OBP certificate number and origin GPS coordinates.
3. Transport to Recycling Facility: Bales are shipped to ISCC PLUS certified recyclers (e.g., Topcentral® plants). Transport documents include bill of lading and chain of custody records.
4. Mechanical Recycling: Shredding, intensive washing (hot/cold), sink-float separation, extrusion, and pelletizing. Quality control checks for contamination, melt flow index (MFI), and color.
5. PCR Pellet Certification: Each batch of pellets receives a Certificate of Conformity (CoC) stating % OBP content, polymer type, and ISCC PLUS mass balance credit.
6. Final Product: Pellets are shipped to injection molders, film extruders, or textile spinners. Topcentral® provides a Digital Product Passport with QR code for instant verification.

This traceability chain ensures that every kilogram of PCR pellet can be traced back to the specific ocean-bound collection site, giving brands confidence in their sustainability claims.

5. OBP Pricing Premium: Market Data & Benchmarks

OBP-certified PCR pellets command a significant premium over conventional PCR and virgin plastics. Based on Topcentral®’s 2024–2025 global B2B pricing index (FOB basis, Asia Pacific & Europe):

Note: Pricing varies by region, volume, color (natural vs. mixed), and certification scope. Topcentral® offers fixed-price annual contracts for high-volume OBP buyers, with a price lock guarantee.

6. GRS vs OBP: Key Differences for B2B Buyers

Both GRS (Global Recycled Standard) and OBP (Ocean Bound Plastic) certification are widely used, but they serve different purposes. The table below clarifies the distinctions for procurement and compliance teams.