Skip to main content
PURBiochar, 2022ChinaGeneral Methodologyv2.0

Nian'da Biochar Facility

PUR-577494 ↗

#34of 44 in Biochar#176of 204 in China#79of 109 in Puro.earth (PUR)

4.2/ 10
Integrity
4.5
Transparency
4.0
Claim Safety
3.5
Documentation
5.0

Audit Analysis

The Nian'da Biochar Facility has a VVB-verified additionality assessment but suffers from significant gaps in permanence, leakage, and data quality. The most alarming issue is that the verified emissions reduction for a single 10-month monitoring period (330.96 tCO₂e) represents 97.8% of the entire 5-year lifetime claim (338.32 tCO₂e), raising serious over-crediting concerns. Multiple corrective actions related to LCA data inconsistencies and untraceable inputs further undermine confidence in the project's claims.

Red Flags

  • Verified ERR of 330.96 tCO₂e in a 10-month monitoring period equals 97.8% of the 5-year lifetime claim of 338.32 tCO₂e — a 587% over-delivery against pro-rata expectation, suggesting a fundamental error in either the baseline estimate or the monitoring data
  • Reversal events are explicitly 'not addressed' and no buffer pool percentage is stated, leaving biochar carbon permanence risk entirely unquantified
  • Three corrective actions (CARs) flag LCA emission calculation inputs as untraceable and data inconsistencies in biomass quantity, steel types, electricity invoices, and flue gas sources
  • Leakage deduction and justification are entirely absent from the extracted record for a biochar project where displaced biomass use is a plausible leakage pathway
  • FPIC was not conducted despite the project being in a community context in China

Credit Vintages Exhausted

IssuedRetiredAvailable
2025
3303300
Total3303300

Risk Indicators

Additionality

VVB-verified investment test

Permanence

Reversal risk unaddressed, no buffer pool

Leakage

No deduction or justification stated

Baseline

Project-specific, no reassessment date

Safeguards

Grievance mechanism present, FPIC not conducted

Double-claim

CORSIA and CCP status not stated

Where to buy

+ Know where to buy this?

Listing multiple projects? Send us a CSV at [email protected].

⚑ Dispute this rating
Analysis ProvenanceScored2026-08-19General Methodology v2.0

Are you the project owner?

Metadata correction (free)

Name, country, marketplace or links incorrect? Let us know.

Does not modify the score.

[email protected]

Pipeline re-run with new documents

Have updated documentation not yet included? You can request a new run of the pipeline with the new inputs.

Submit Documents