Standardizing Sustainability Data: The Next Imperative for Chemical Sourcing

Chemical sourcing has long depended on the ability to compare equivalent products on a like-for-like basis. As sustainability becomes a core procurement criterion, that consistency is beginning to break down, which demands that organizations across regions set their sourcing standards to a different level.

Product carbon footprint (PCF) data and feedstock traceability are increasingly included in supplier submissions, yet the underlying methodologies, system boundaries, and chain-of-custody models often differ. The result is sustainability data that is difficult to compare and even harder to use in sourcing decisions.

As regulatory expectations, customer requirements, and corporate decarbonization targets converge, inconsistent data has become a commercial risk. It slows down the supplier selection process and complicates supplier switching. Scope 3 reporting suffers, and sourcing flexibility narrows, making it harder to evaluate and select suppliers on sustainability performance.

The longer this inconsistency problem persists, the greater the reliance on incumbent suppliers, not because alternatives are absent, but because they cannot be evaluated with confidence.

The Hidden Barrier to Sustainable Sourcing

Standardization rarely breaks down through intent. Suppliers operate under different regulatory requirements, customer expectations, and reporting frameworks, so their PCF data ends up built on different methodologies, boundaries, and assumptions, which limits comparability across suppliers.

Small and mid-sized suppliers feel this most acutely. Many rely on generic emission factors, limited primary data, and fragmented reporting systems, and their disclosures tend to be tailored to individual customers or regional requirements rather than built for broad market comparability.

Until reporting practices converge, inconsistent sustainability data remains a structural challenge, not an isolated supplier issue.

Why the Window for Action Is Closing

The economics of sustainability data have changed. What was once primarily a reporting requirement is becoming a prerequisite for regulatory compliance, supplier competitiveness, and sourcing decisions. Organizations can no longer rely on sustainability data that is difficult to compare or verify.

Three developments are accelerating this shift:

EU Carbon Border Adjustment Mechanism (CBAM): Since entering its definitive phase in 2026, CBAM has linked the carbon intensity of imported products to a direct financial obligation. Covering sectors including fertilizers, hydrogen, electricity, cement, iron and steel, and aluminum, it requires verified product-level emissions data and applies a carbon price aligned with the EU Emissions Trading System. The reference CBAM certificate price for the first quarter of 2026 was €75.36 per tonne of CO₂, reinforcing that embedded emissions now carry a measurable commercial cost.

Corporate Sustainability Reporting Directive (CSRD): CSRD expands sustainability reporting requirements across companies operating in or serving the EU market. Its emphasis on auditable Scope 3 disclosures is increasing demand for supplier-specific, product-level emissions data rather than portfolio averages.

Growing global disclosure expectations: Across major markets, regulators, investors, and customers are placing greater emphasis on traceable, decision-ready sustainability data. As a result, the quality and consistency of supplier emissions data are becoming increasingly important in procurement and supplier management.

Industry initiatives are reinforcing the same direction. Together for Sustainability (TfS), whose members represent a global annual turnover of more than €800 billion and a global spend of more than €500 billion, and the initiative is advancing common approaches for product carbon footprint (PCF) calculation and sustainability data exchange across the chemical industry.

Standardized sustainability data has moved from a reporting exercise to a prerequisite for efficient supplier qualification, regulatory compliance, and resilient sourcing decisions.

Industry Standards Are Creating a Common Foundation

The industry's response is not to create more sustainability data, but to make existing data comparable. Common standards are emerging to ensure product-level sustainability information is calculated, verified, and exchanged using consistent methodologies.

Two industry initiatives are particularly relevant to chemical procurement:

Together for Sustainability (TfS) PCF Guidelines: TfS has established a common methodology for calculating and exchanging product carbon footprint (PCF) data. The guidelines standardize system boundaries, data requirements, and calculation principles, enabling more consistent supplier comparisons. Version 3.0, published in December 2024, aligns with both ISO 14067 and the GHG Protocol.

International Sustainability and Carbon Certification (ISCC): ISCC provides a recognized framework for verifying the traceability of bio-based and circular feedstocks. Through standardized chain-of-custody models, including mass balance and segregation, it enables consistent verification of sustainable material flows across the value chain.

These efforts also connect to broader industry initiatives. TfS collaborates with the Partnership for Carbon Transparency (PACT), an initiative of the World Business Council for Sustainable Development (WBCSD), to advance interoperable product carbon data across value chains. While TfS focuses on the chemical industry's sustainability and PCF requirements, PACT addresses the broader challenge of exchanging carbon data consistently across companies and industries.

As common standards gain adoption, sustainability data becomes easier to compare, easier to trust, and easier to integrate into sourcing decisions alongside commercial and supply considerations.

From Standards to Adoption – GEP Experience

Standardization is already reshaping procurement across the value chain. In an ongoing engagement with a leading global consumer goods company, GEP is supporting the collection of PCF data from 300+ suppliers and enabling the buyer community through targeted training on the PCF collection process and requirements. This is helping establish a more consistent approach to supplier data collection and strengthen the integration of PCF information into procurement decisions.Market examples demonstrate the broader shift: BASF became the first company to receive TÜV Rheinland certification confirming that its automated product carbon footprint (PCF) methodology complies with the Together for Sustainability (TfS) standard. The system now generates cradle-to-gate PCFs for approximately 45,000 sales products, enabling consistent carbon data to support sourcing and product decisions.

The shift extends beyond chemical producers. Since January 2024, Haleon has incorporated supplier PCFs into supplier evaluations across more than £600 million of procurement activity and received over 300 supplier PCFs, demonstrating how standardized sustainability data can be embedded into procurement at scale.

Standardized sustainability data is evolving from a reporting requirement into a practical input for procurement decisions.

What Category Managers Should Prioritize

Standardization alone will not improve sourcing outcomes. Value is created when comparable sustainability data becomes part of everyday procurement decisions.

Four steps should guide that transition:

Step 1 - Standardize supplier data requirements: Establish a common baseline for sustainability data across the supplier base by aligning product carbon footprint (PCF) calculations, traceability requirements, and data exchange with recognized frameworks such as TfS, PACT, and ISCC.

Step 2 - Build supplier and buyer capability: Provide targeted training on PCF requirements, calculation approaches, traceability expectations, and data collection processes to enable suppliers and procurement teams to apply the standardized requirements consistently.

Step 3 - Make sustainability data decision-ready: Move beyond collecting sustainability data for reporting purposes. Integrate verified PCFs and traceability information into supplier qualification, RFx evaluations, and sourcing decisions alongside cost, quality, supply risk, and resilience.

Step 4 - Build a scalable data ecosystem: Standardized sustainability data belongs in procurement systems and governance, not standalone spreadsheets or one-off assessments.

The organizations that benefit most will be those that move beyond collecting sustainability data and use it consistently across the procurement process in line with recognized frameworks such as TfS, PACT, and ISCC. With a common data foundation, the right capabilities and clear integration into sourcing, sustainability information can support faster, better-informed supplier and sourcing decisions.

Author: Shivansh Arora