RSPO Certification Models Explained: Identity Preserved (IP), Segregated (SG), and Mass Balance (MB)

Environmental and social sustainability has evolved from a corporate relations initiative into a core regulatory and commercial mandate for the global edible oil trade. For food manufacturers, retail brands, and chemical processors, verifying the sustainable origin of raw materials is essential to secure market access, particularly in heavily regulated markets. The Roundtable on Sustainable Palm Oil (RSPO) serves as the primary global standard for sustainable palm oil production. This guide analyzes the four main RSPO supply chain certification models—Identity Preserved, Segregated, Mass Balance, and RSPO Credits—to assist palm oil buying guide teams in making informed sourcing decisions.

Overview of RSPO and Supply Chain Certification Standards (SCCS)

The Roundtable on Sustainable Palm Oil (RSPO) is a multi-stakeholder non-profit organization that unites oil palm growers, processors, traders, consumer goods manufacturers, retailers, and environmental NGOs. The RSPO establishes strict Principles and Criteria (P&C) that growers must meet to achieve certification. These standards cover biodiversity preservation, land rights, fair labor practices, and greenhouse gas emission monitoring.

However, once certified sustainable palm oil (CSPO) leaves the plantation, it must be tracked through the entire supply chain to ensure credibility. The RSPO Supply Chain Certification Standard (SCCS) governs this process, providing guidelines for how processors, refiners, and distributors handle certified oil. To ensure a reliable, compliant supply chain, buyers partner with a certified bulk palm oil supplier that maintains full traceability protocols.

Identity Preserved (IP) Model: Maximum Physical Traceability

The Identity Preserved (IP) supply chain model offers the highest level of physical traceability. Under this system, certified sustainable palm oil from a single certified mill and its associated plantation base is kept completely physically isolated from all other palm oil sources throughout every stage of the supply chain. This means the oil is processed, stored, and shipped in dedicated, clean equipment that does not contain any other oils.

Because the oil is kept strictly separate, the final product can be traced directly back to its plantation of origin. This model is ideal for premium baby food brands, clean-label organic manufacturers, and companies with strict single-source sourcing policies. However, the IP model requires high capital investment and complex logistics. B2B buyers must coordinate with a dedicated crude palm oil supplier to arrange single-origin supply streams.

Segregated (SG) Model: Multi-Mill Sustainable Separation

The Segregated (SG) supply chain model allows certified sustainable palm oil from different RSPO-certified mills to be blended during transport and refining. However, the sustainable oil must be kept strictly separated from conventional, non-certified palm oil throughout the entire journey—from the initial crushing mill to the final packaging facility.

While the SG model does not track the oil back to a single plantation, it guarantees that 100% of the physical oil in the final product is certified sustainable. This makes it the preferred standard for European consumer brands and retailers that mandate a “zero deforestation” policy for their products. Brands often source refined sustainable fats from an established RBD palm oil supplier to secure consistent quality specifications.

Mass Balance (MB) Model: Administrative Tracking & Mixing

The Mass Balance (MB) model is the most widely used system because it accommodates existing supply chain logistics. Under this model, RSPO-certified sustainable palm oil is mixed with conventional palm oil in refineries, storage tanks, and shipping vessels. There is no physical segregation, meaning the final product contains a physical blend of certified and conventional oils.

Instead of physical tracking, the system relies on administrative volume accounting. Refiners and distributors use a credit-based ledger to ensure that the volume of certified sustainable oil sold does not exceed the volume of certified oil entered into the system. This model allows food companies to support sustainable farming without paying the high logistical premiums of physical segregation. Buyers sourcing MB oil work with an experienced RBD palm olein supplier to coordinate bulk shipments.

Book & Claim Model (RSPO Credits): The Certificate System

The Book & Claim model, also known as RSPO Credits, does not involve any physical tracing of sustainable oil. Under this system, certified oil palm growers sell sustainability credits on the online RSPO PalmTrace platform. Consumer goods manufacturers can buy these credits directly from growers to offset their conventional palm oil use.

While there is no sustainable oil in the physical product, Book & Claim directly supports certified farmers—especially independent smallholders who may not have access to segregated transport logistics. It is often used by companies as a starting point to support sustainable practices while they transition their supply chains toward physical models (MB or SG).

Comparison Matrix of RSPO Supply Chain Models

The table below summarizes the key operational differences between the four RSPO supply chain models:

RSPO Model	Physical Segregation	Traceability Target	Logistical Complexity	Premium Cost	Best Application
Identity Preserved (IP)	100% Strictly Isolated	Single certified mill	Very High	Premium High	Infant formula, organic brands, baby foods
Segregated (SG)	100% Sustainable Blend	Multiple certified mills	High	Moderate to High	European retail brands, cosmetic formulations
Mass Balance (MB)	No (Administratively Tracked)	Refinery input ratio	Low (Standard Logistics)	Low	Bulk frying, general food manufacturing
Book & Claim (Credits)	None (Virtual Trade)	Online PalmTrace certificate	Zero	Minimal	Smallholder support, early ESG transitions

B2B Procurement Guidelines for ESG Buyers

To successfully transition to sustainable palm oil sourcing, corporate procurement teams should follow a structured verification process. First, buyers must verify that their supplier is an active RSPO member with a valid Supply Chain Certificate (SCC). This membership can be verified directly on the public RSPO directory. Second, buyers should specify the required certification model (IP, SG, or MB) in all trade contracts and request the matching RSPO claim statement on all shipping documents (such as the Bill of Lading, Invoice, and palm oil Certificate of Analysis (COA)).

Furthermore, buyers should ensure that the logistics provider is certified to handle bulk liquids, preventing accidental contamination. For details on tank capacities and shipping containers, consult our dry fractionation process guide to understand how different solid and liquid fractions are separated. Sourcing from a verified sustainable palm oil supplier ensures that all shipments comply with international ESG requirements. Procurement teams should work with a verified bulk palm oil supplier to arrange efficient container configurations.

Frequently Asked Questions (FAQ)

What is the difference between Segregated (SG) and Identity Preserved (IP) palm oil?

Both models guarantee 100% sustainable physical oil. However, IP palm oil is kept separated by individual mill of origin, allowing direct traceability to a single mill. SG palm oil allows certified sustainable oil from different certified mills to be mixed together during storage and transport.

Does Mass Balance (MB) palm oil contain conventional palm oil?

Yes. In the Mass Balance model, certified sustainable oil is mixed with conventional oil. The system tracks the volumes administratively to ensure that the seller only claims sustainable volumes equal to the certified volumes they purchased.

What are RSPO Credits?

RSPO Credits are virtual certificates traded on the PalmTrace platform under the Book & Claim model. Buyers purchase credits to offset their conventional oil use, sending funds directly to certified growers without physical tracing.

Why is the Mass Balance model the most popular?

The Mass Balance model is popular because it does not require separate physical storage tanks or transport vessels. This allows refineries and shipping companies to use their standard logistics infrastructure, keeping prices low while supporting sustainable agriculture.

Are RSPO certified oils GMO-free?

Yes. All oil palm varieties cultivated globally are non-GMO. RSPO certification focuses on environmental and social sustainability, and the raw oil remains naturally non-GMO.

What is RSPO PalmTrace?

RSPO PalmTrace is the official marketplace and registry for RSPO-certified sustainable palm oil. It is used by members to register transactions, trade RSPO credits, and trace supply chain volumes globally.

How can a buyer verify a supplier’s RSPO status?

Buyers can verify status by searching the supplier’s company name on the official RSPO member directory. The directory lists membership type, license numbers, certificate validity, and annual progress reports.

Is RSPO certification recognized by the EU Deforestation Regulation (EUDR)?

While RSPO certification is a valuable due diligence tool, it does not guarantee automatic compliance with the EUDR. Importers must still provide plot-level geolocation coordinates and verify deforestation-free production, which RSPO supports through its mapping databases.