The Corporate Sustainability Reporting Directive (CSRD) has significantly expanded sustainability reporting requirements for many companies operating in or supplying the European Union. Among its most discussed provisions is the disclosure of Scope 3 greenhouse gas emissions, which captures emissions occurring throughout a company's value chain rather than only within its own operations.
For chemical manufacturers, distributors and procurement professionals, understanding what the legislation actually requires is increasingly important. While many consultants promote extensive reporting frameworks, the legal requirements are defined by the European Sustainability Reporting Standards (ESRS), specifically ESRS E1 on climate change. Distinguishing mandatory disclosures from voluntary best practices helps organizations build practical and proportionate compliance programs.
Why Scope 3 Reporting Matters
Scope 3 emissions often represent a significant share of the overall greenhouse gas footprint for chemical companies because they include activities beyond direct manufacturing operations.
These emissions can arise from purchased raw materials, transportation, product distribution, downstream processing and other value chain activities.
Under CSRD, companies assess sustainability topics through a double materiality assessment. This considers both how sustainability issues affect the business and how the business affects people and the environment.
Where climate impacts are identified as material, ESRS E1 establishes the framework for climate-related reporting, including Scope 3 emissions where applicable.
What ESRS E1 Specifies
ESRS E1 provides the climate disclosure requirements that support CSRD reporting.
Rather than creating a single reporting template for every company, the standard requires disclosures that reflect the organization's material climate impacts, risks and opportunities identified through the reporting process.
For Scope 3 emissions, ESRS E1 focuses on value chain greenhouse gas emissions where they are relevant to the company's material climate assessment.
This means organizations should report according to the published standard rather than assuming every possible emissions category automatically requires identical treatment.
Understanding Scope 3 Value Chain Emissions
Scope 3 emissions extend beyond emissions produced directly by company facilities.
For chemical businesses, value chain emissions may include information associated with:
Purchased raw materials and chemical feedstocks.
Transportation and logistics activities.
Upstream supplier operations.
Downstream distribution and product use where relevant.
Other value chain activities identified under the applicable reporting framework.
Procurement teams therefore play an increasingly important role because supplier information contributes to overall emissions reporting.
Reliable supplier data supports both reporting quality and internal sustainability management.
The Role of Procurement Teams
Procurement departments increasingly serve as an important link between suppliers and corporate sustainability reporting.
Chemical companies often need emissions information from suppliers to complete value chain assessments under ESRS E1.
This does not necessarily mean every supplier must provide identical datasets. Instead, companies should collect information that supports the reporting requirements identified through their own materiality assessment.
Strong supplier engagement also improves data consistency across reporting periods.
Mandatory Disclosure Versus Voluntary Best Practice
One area that often creates confusion is the difference between legal reporting requirements and broader sustainability recommendations.
The mandatory obligations originate from CSRD and the published ESRS standards. These define what companies must disclose where the reporting requirements apply.
Many organizations also adopt additional practices that extend beyond the legal minimum. These may include collecting more detailed supplier information, performing enhanced carbon analyses or expanding sustainability metrics across global supply chains.
Such initiatives can strengthen sustainability programs, but they should not be confused with the specific disclosure obligations established by ESRS E1.
Understanding this distinction helps procurement teams prioritize resources effectively while maintaining regulatory compliance.
Building a Practical Scope 3 Compliance Process
Companies preparing for CSRD reporting benefit from establishing structured internal processes rather than relying on ad hoc data collection.
Practical preparation may include:
Identifying suppliers that contribute significantly to value chain emissions.
Establishing standardized processes for requesting emissions information.
Reviewing supplier documentation for consistency and completeness.
Coordinating procurement, sustainability and regulatory teams.
Maintaining records that support future reporting cycles.
These measures improve reporting quality while reducing administrative effort over time.
Looking Ahead for Chemical Companies
As CSRD implementation continues, Scope 3 reporting will remain an important area of focus for many chemical businesses operating within European supply chains.
Organizations should continue using the published ESRS E1 requirements as the primary reference point for compliance planning. At the same time, procurement teams should recognize that voluntary sustainability initiatives may extend beyond the reporting obligations established by the directive.
A clear understanding of what ESRS E1 actually requires allows companies to develop efficient reporting systems, strengthen supplier engagement and support regulatory compliance without creating unnecessary reporting burdens.
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