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Re-assessment pendingGSBiogas - HeatChinaVintage 2018Registry: RegisteredAMS-I.C

Haikou Rural Methane Digesters Project in Hainan Province

Developer: Guizhou Honor Carbon Asset Management Co., Ltd

GS-461 ↗ · current registry ID: GS2664

Worked comparison example (English)

#278of 525 in Biogas#2095of 3065 in China#1431of 2172 in Gold Standard (GS)#132of 276 in AMS-I.C

Score from methodology v2.1 (analysis of 5 Sep 2026). Re-assessment under v2.2 pending.

Assessment

CarbonMeld document-based assessment

01020304 Overall 4.8 / 10
Integrity 🔒 Transparency 🔒 Claim Safety 🔒 Documentation 🔒
Dimension scores are locked — the faint arcs are empty tracks, not zero scores.

Scale 0–10 · method weights: integrity 35% · transparency 25% · claim safety 25% · documentation 15%.

Re-assessment pending · v2.1

Scored2026-09-05medium confidenceLatest monitoring period ends: 2023-04-27

evidence: 20/22 registry documents analyzed · 5 red flags

Generated by CarbonMeld Analysis Pipeline · Methodology · Editorial Policy · About the System
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Analysis

The Haikou Rural Methane Digesters Project has a VVB-confirmed additionality assessment and a quantified (albeit zero) leakage deduction, but is undermined by an extensive list of material findings and corrective actions spanning multiple verification cycles, a project-specific modeled baseline with no documented reassessment, and the absence of any buffer pool or permanence mechanism. The project delivered roughly 62% of its pro-rata ex-ante expectation for the elapsed monitoring period, a conservative outcome partly attributable to a documented swine-fever shock, but the volume of unresolved documentation and methodology issues raises meaningful concerns about the robustness of the underlying MRV.

Red Flags

5 red flags detected — Unlock with Premium

Findings

Risk Indicators

Additionality

🔒

Permanence

🔒

Leakage

🔒

Baseline

🔒

Safeguards

🔒

Double-claim

🔒

Risk indicator details are a Premium feature

Score Breakdown

Score factors per dimension are a Premium feature — Unlock with Premium

Detailed Analysis

The detailed per-dimension analysis is a Premium feature — Unlock with Premium

Evidence

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On this page: the analysis of 5 Sep 2026, marked “Re-assessment pending”. Per-dimension scores, risk indicators, 5 red flags, score factors, detailed analysis, and 22 registry documents (20 analyzed).

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Eligibility & market

What can you claim with this credit?

Four checks buyers ask about, from the registry and the Integrity Council (ICVCM).

  • Airlines (CORSIA)

    No CORSIA label on the registry

    Not usable for airlines' CORSIA obligations.

    Source: registry label

  • Integrity label (ICVCM CCP)

    Methodology under ICVCM assessmentAMS-I.C

    The Integrity Council has not decided on this methodology yet.

    Source: ICVCM assessment

  • Removal or reduction

    Emission reduction or avoidance

    Prevents or reduces emissions — fits contribution claims, not SBTi neutralisation.

    Source: registry label

  • Paris Agreement (Article 6)

    Not published

    This registry does not publish Article 6 authorizations.

Information only, from public sources. Claim rules (CORSIA, SBTi, EU rules on green claims) change: check them before making a public claim. Since 27 September 2026, EU consumer rules do not allow “climate neutral” product claims based on offsets.

Registry labels last checked:2026-09-27

Credit Vintages

IssuedRetiredAvailable
2013
36,28136,2810
2014
53,46653,024442
2015
53,36952,3091,060
2016
53,46252,2541,208
2017
51,99144,9936,998
2018
52,65831,00021,658
2019
28,39716,49411,903
Total329,624286,35543,269

Methodology versions used

The methodology version stated in each monitoring, verification and issuance document, by period, compared with the official methodology pages.

  1. 2013–2016AMS-I.C v19.0since replaced by v22.0

    verification report

    official page · verified on

  2. 2013–2016AMS-III.D v18.0since replaced by v22.0

    monitoring report

    official page · verified on

  3. 2013–2016AMS-III.R v3.0since replaced by v5.0

    verification report

    official page · verified on

  4. 2017–2019AMS-I.C v19.0since replaced by v22.0

    monitoring report + verification report

    official page · verified on

  5. 2017–2019AMS-III.Dversion not confirmed in the document text

    monitoring report

  6. 2017–2019AMS-III.R v3.0since replaced by v5.0

    monitoring report + verification report

    official page · verified on

  7. 2020–2023AMS-I.C v19.0since replaced by v22.0

    monitoring report + verification report

    official page · verified on

  8. 2020–2023AMS-III.R v3.0since replaced by v5.0

    monitoring report + verification report

    official page · verified on

  9. 2021–2023AMS-III.Dversion not confirmed in the document text

    monitoring report

  10. Period not statedAMS-I.Cversion not confirmed in the document text

    verification report

  11. Period not statedAMS-III.Rversion not confirmed in the document text

    verification report

  • AMS-I.C: Active (CDM / UNFCCC) · official page · verified on
  • AMS-III.D: Active (CDM / UNFCCC) · official page · verified on
  • AMS-III.R: Active (CDM / UNFCCC) · official page · verified on

A version is shown only when the document's own text writes it next to the methodology code. Current versions, status and CCP ranges come from the official pages linked, checked on the date shown.

Documents on the registry

Retired by

Organisations named as beneficiaries in the registry's public retirement records.

Where to buy

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Marketplaces

ClimateBridge Exchange

$6.00/tCO2

Vintage 2018

20,605 tCO2 available

checked on 26 Oct 2026

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Profile & governance

Analysis ProvenanceAMS-I.C; AMS-III.R
Methodology·Editorial Policy·About the System

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