Tanghe AMMS GHG Mitigation Project

Audit Analysis

The Tanghe AMMS project is a VCS-registered anaerobic manure management system in China that avoids methane emissions from uncovered anaerobic lagoons. Additionality is confirmed by the VVB via a combined test, and leakage is quantified, but permanence risk is inadequately addressed (no buffer pool stated, reversals not assessed), FPIC was not conducted, and material findings reveal gaps in the investment analysis and an inconsistent explanation of the project's relationship to the Chinese ETS. The project delivered approximately 87% of its pro-rata ex-ante expectation for the elapsed monitoring period, indicating conservative rather than aggressive crediting.

Project Description

Red Flags

• ⚠FPIC was not conducted despite the project affecting local communities in China
• ⚠Buffer pool percentage is not stated and reversal events are marked as not addressed, leaving permanence risk unquantified
• ⚠Material findings flag missing investment analysis dates/sources and missing assessment of input value validity in the additionality section
• ⚠Inconsistent explanation of the project's participation in the Chinese ETS noted in the verification report
• ⚠Baseline is project-specific and modeled rather than jurisdictional, increasing baseline uncertainty

Credit Vintages

No issuances recorded on the registry.