Banpong Tapioca Flour Industrial Wastewater Treatment and Biogas Utilisation Project
#23of 111 in Biogas#7of 22 in Thailand#268of 629 in Verra (VCS)#4of 22 in AMS-III.H
Audit Analysis
A VCS biogas project (AMS-III.H) with confirmed additionality and no reversal events, but undermined by significant monitoring quality issues: 25 corrective action requests, multiple missing biogas records, a broken gas meter unused for over four months, and a 47% reduction in claimed emissions reductions by the VVB. The 0% leakage deduction rests on a thin 'deemed negligible' justification, and the project-specific baseline has not been reassessed since 2017.
Red Flags
- The monitoring report (Aug 2025) claimed 117,447 tCO2e for the 2021–2023 period, but the VVB verified only 61,799 tCO2e — a 47% reduction that signals substantial errors in the project's own calculations
- Seven material findings in the 2025 verification report include missing biogas records for GM1 over multiple months, gas meter GM6 broken and unused from January to May 2022, a calibration gap on GM4, and no temperature records or maintenance in line with the monitoring plan
- 25 corrective action requests (16 + 9) were raised during verification, covering incorrect baseline emission calculations, missing auxiliary electricity reporting, wrong COD reference point, and unjustified temperature/pressure corrections
- Crediting period start date is inconsistent: the 2018 verification report states 2006-03-28, while the 2025 verification report states 2016-03-28 — a ten-year discrepancy
- Leakage deduction is 0% with only a 'deemed negligible' justification, with no quantified assessment in the available documents
Credit Vintages
| Issued | Retired | Available | ||
|---|---|---|---|---|
| 2006 | 11,138 | 11,138 | 0 | |
| 2007 | 14,023 | 14,023 | 0 | |
| 2008 | 11,616 | 11,616 | 0 | |
| 2009 | 7,813 | 7,813 | 0 | |
| 2010 | 13,000 | 13,000 | 0 | |
| 2011 | 10,764 | 7,076 | 3,688 | |
| 2012 | 5,985 | 5,735 | 250 | |
| 2013 | 5,162 | 4,162 | 1,000 | |
| 2014 | 5,255 | 5,255 | 0 | |
| 2015 | 5,392 | 5,392 | 0 | |
| 2016 | 30,444 | 27,988 | 2,456 | |
| 2017 | 42,940 | 42,940 | 0 | |
| 2018 | 30,674 | 30,627 | 47 | |
| 2019 | 32,777 | 32,761 | 16 | |
| 2020 | 19,252 | 19,252 | 0 | |
| 2021 | 10,256 | 10,256 | 0 | |
| 2023 | 550 | 550 | 0 | |
| Total | 257,041 | 249,584 | 7,457 |
Risk Indicators
VVB-confirmed investment test
No reversals but buffer pool not stated
0% deduction, thin justification
Project-specific, reassessed 2017
FPIC, grievance, benefit sharing documented
CORSIA excluded, CCP status unknown
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