CarbonMeld CarbonMeld Carbon Observatory
Workbench ProjectsDevelopersComparePortfolioCCP trackerA–Z index
Re-assessment pendingGSOtherSwitzerlandRegistry: Registered

GS11623 GS11627 RVPA-2 CO2 Sequestration at a Swiss Concrete Recycler using the Neustark Technology

Developer: Neustark AG

GS-4507 ↗ · current registry ID: GS11664

Worked comparison example (English)

#13of 27 in Switzerland#928of 2179 in Gold Standard (GS)

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

Assessment

CarbonMeld document-based assessment

01020304 Overall 5.6 / 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

Scored2026-09-02medium confidence

evidence: 20/29 registry documents analyzed · 4 red flags

Generated by CarbonMeld Analysis Pipeline · Methodology · Editorial Policy · About the System
Download Report (PDF)

How this analysis was made

Standard
Gold Standard (GS) How our current method reads projects of this standard
Methodology
Carbon sequestration through accelerated carbonation of concrete aggregate No methodology-specific rules: the general rules apply. Read the general rules
Our method
CarbonMeld methodology v2.1 · analysed on 2 Sep 2026 · 20/29 registry documents analyzed · re-assessment under v2.2 pending

Analysis

A Swiss CO₂ mineralization project using accelerated carbonation of concrete aggregate, verified by Earthood Services. The inherent permanence of geological carbonation is a strong integrity asset, but the project-specific baseline, absence of a stated buffer pool, and multiple unquantified parameters (leakage deduction, FNRB, usage rates) limit confidence. Data extraction confidence is low and several contradictions across monitoring reports reduce transparency.

Red Flags

4 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

Gates applied

The gates applied to this score are a Premium feature — Unlock with Premium

Detailed Analysis

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

Evidence

Unlock the full analysis

On this page: the analysis of 2 Sep 2026, marked “Re-assessment pending”. Per-dimension scores, risk indicators, 4 red flags, score factors, detailed analysis, and 29 registry documents (20 analyzed).

€9+ VAT per month · card subscription, renews automatically until you cancel

Every rated project, PDF reports, API access, portfolio alerts and per-dimension scores with red-flag details in side-by-side comparisons (public-data comparison is free; fair use: 30 projects per day). Cancel any time from your account page. Crypto: $9 for one month, no automatic renewal.

Price + VAT · By subscribing or paying you accept the Terms of Use — the card subscription renews every month until you cancel; digital content, no refunds. How Premium works

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 · read on 2 Nov 2026

    Covers: this project's credit records as read on the registry

  • Integrity label (ICVCM CCP)

    No ICVCM information

    No CCP label and no ICVCM decision found for this project's methodology.

  • Removal or reduction

    Carbon removal

    Takes CO₂ out of the atmosphere — the only type that can neutralise residual emissions in an SBTi net-zero claim.

    Source: registry label · read on 2 Nov 2026

    Covers: the project type, not a label on individual credits

  • 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:2026-11-02

Credit Vintages

IssuedRetiredAvailable
2022
101
2023
50500
2024
33330
Total84831

Retired by

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

Where to buy

Got an offer for these credits? Check it against the registry →

+ Know where to buy this?

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

⚑ Dispute this rating

Profile & governance

Methodology·Editorial Policy·About the System

Are you the project owner?

Metadata correction (free)

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

Does not modify the score.

[email protected] →

Contest this rating

Something wrong in the analysis, or a registry document we have not used? Send us the link to the public source: you get a reference and an answer within 30 days.

Contest this rating →

Similar projects

Same methodology or sector, the same registry first.