Bio-based feedstock share by material
Measurement answer
What this metric measures
Percentage of total feedstock or raw materials that is bio-based, measured by weight or mass and reported separately for each material type.
Specification
Metric specification
- Result format
- Structured table
- Unit
- percent of total feedstock or raw materials by weight or mass — source-defined reporting unit
- Reporting basis
- Not specified in extracted evidence
- Aggregation
- Report the percentage for each material type; do not aggregate material types unless the aggregation method and total feedstock or raw-material denominator are disclosed.
- Pillar
- Environmental
- Topic
- Feedstock sourcing
- Controlled domain
- Materials, circularity and waste
- Entity type
- Metric
Reporting boundary
Upstream supply-chain sources; total feedstock or raw materials used, measured by weight or mass.
Verified source occurrences
Framework coverage
This is one canonical metric. The bindings below show every verified framework occurrence without creating duplicate metric pages. Edition, disclosure, role, and relationship remain source-specific.
- Adopting DisclosureSource evidence
TNFD sector guidance
- Publisher
- Taskforce on Nature-related Financial Disclosures
- Edition
- Final English sector guidance collection through August 2026 (17 documents)
- Requirement
- Not Specified
- Relationship
- Defines Disclosure
- Mapping outcome
- Direct Evidence
- Source locator
- Page 56, Table 15: Additional sector disclosure indicators and metrics
- Adopting DisclosureC.A3.0
TNFD sector guidance
- Publisher
- Taskforce on Nature-related Financial Disclosures
- Edition
- Version 1.0, June 2024
- Requirement
- Recommended
- Relationship
- Maps Source Identity
- Mapping outcome
- Published
- Source locator
- Page 56, Table 15: Additional sector disclosure indicators and metrics
Value structure
Dimensions and units
- Unit
- percent of total feedstock or raw materials by weight or mass — source-defined reporting unit
- Reporting basis
- Not specified in extracted evidence
Unit meaning: Values use percent of total feedstock or raw materials by weight or mass under the disclosed TNFD sector-guidance method, reporting period and boundary.
Table fields and units
- Material type
- Bio-based feedstock or raw-material mass
- Total feedstock or raw-material mass
- Bio-based share (%)
Published dimensions
- Material type
- Feedstock or raw-material category
- Upstream supply-chain source
Calculation method
Formula information
- Status
- Specified
- Formula type
- Percentage
Formula
Bio-based feedstock share (%) = (M_bio-based / M_total) × 100Apply the source-defined TNFD sector-guidance method within the stated reporting boundary. This is a standalone, quantitatively reportable upstream feedstock-composition percentage. The material disaggregation and mass-based denominator are explicit in the extracted specification. No shortlisted existing metric has the same construct, boundary, value shape, and unit.
Variables
| Symbol | Variable | Definition | Unit |
|---|---|---|---|
M_bio-based | Bio-based feedstock or raw-material mass | Mass or weight of feedstock or raw materials classified as bio-based for the reported material type. | same mass or weight unit as M_total |
M_total | Total feedstock or raw-material mass | Total mass or weight of feedstock or raw materials for the reported material type. | mass or weight |
Verified sources
Evidence and status sources
Sustopedia checked each record-specific claim directly against primary publisher material. Labels distinguish current measurement authority from future compatibility and corroborative, legal, edition, or method status context. Corroborative evidence can support a stated limitation but cannot establish the core measurement by itself.
Measurement evidence
- Measurement evidenceChecked 30 August 2026
TNFD additional sector guidance collection
- Publisher
- Taskforce on Nature-related Financial Disclosures
- Edition
- Final English sector guidance collection through August 2026 (17 documents)
- Locator
- Page 56, Table 15: Additional sector disclosure indicators and metrics
Supports: The official TNFD sector guidance supports the identity, boundary and method basis of “Bio-based feedstock share by material”.
Open official source
Use with context
Interpretation boundaries
Method disclosures required
Source-edition basis: TNFD sector guidance, Final English sector guidance collection through August 2026 (17 documents).
- Define the criteria used to classify feedstock or raw materials as bio-based.
- Disclose whether weight or mass is used and apply the same basis to numerator and denominator.
- Disclose the material-level denominator population and any excluded feedstock or raw-material categories.
- Disaggregate the result by material type.
Record-specific limitations
- The extracted evidence does not specify a reporting-period convention.
- The extracted evidence does not define eligible bio-based-content criteria, chain-of-custody requirements, or treatment of mixed materials.
- A total across materials is not comparable unless material coverage and mass-basis methodology are disclosed.
Interpret this metric with the stated reporting boundary, period convention, value shape, and unit. Results prepared with different boundaries or conventions may not be directly comparable.
Measurement evidence supports the core record-specific claims described above. Corroborative evidence can support limitations, while compatibility and status sources provide their separately labelled context. None of these cards by itself determines an organisation's legal applicability, filing readiness, assurance status, or compliance conclusion.