Guangxi Baiduoshou Composting Project

Audit Analysis

The Guangxi Baiduoshou Composting Project is a VCS AMS-III.F manure management project with a VVB-confirmed investment additionality test and an avoidance-based design that carries minimal permanence risk. However, the project-specific modeled baseline, a 0% leakage deduction with contradictory justifications across documents, and a significant discrepancy between the original PDD lifetime estimate (570,160 tCO₂e) and the monitoring-period verified figure (77,393 tCO₂e) introduce moderate uncertainty. The project delivered roughly 74% of the pro-rata expectation for the elapsed monitoring period, which is conservative and reduces over-crediting risk.

Project Description

Red Flags

• ⚠The original PDD (Aug 2023) states a lifetime ERR of 570,160 tCO₂e while the updated PDD (Nov 2025) and verification report both cite 77,393 tCO₂e — a 7.4× discrepancy that, while likely reflecting different time bases (full 10-year crediting period vs. ~22-month monitoring period), signals a lack of clarity in how the ex-ante estimate was revised.
• ⚠Leakage justification is inconsistent: the monitoring report (Jan 2025) describes it as 'quantified' while the validation report (Jan 2025) describes it as 'deemed negligible,' and the deduction is 0% in both cases.
• ⚠Buffer pool percentage is not stated in any available document, leaving the permanence safeguard mechanism unquantified despite the project being an avoidance-type activity.
• ⚠Benefit-sharing description is contradictory: the validation report (Jan 2025) states it is not described, while the PDD (Nov 2025) states it is described.

Credit Vintages

No issuances recorded on the registry.