Puro Registry for durable carbon
removal credits

On the Puro Registry you can view CO2 Removal Certificates, or CORCs, that have been retired and the projects that issued them. CORCs are retired when a beneficiary makes a net zero or carbon neutrality claim that is supported by the CORCs’ carbon removal properties. Each CORC represents a Net Carbon Dioxide Removal volume of one (1) metric ton of Long-Term CO2 Removal.

Retired CORCs
640 429
Issued CORCs
1 119 344
Projects
84

Methodology

Retirement dateSort
Beneficiary
Retired CORCsSort
Projects
Methodologies
27 May 2025CNaught customers10Farm Gai Kaisa 159Biochar
22 May 2025Ampere Support Office B.V.67Freres Lumber Co., Inc.Biochar
22 May 2025- 185Freres Lumber Co., Inc.Biochar
22 May 2025Sparebanken Norge27OBIO RudshøgdaBiochar
21 May 2025GitLab Inc.10Restoration FuelsBiochar
21 May 2025GitLab Inc.78Aperam BioEnergiaBiochar
21 May 2025Carbon Finance Labs llc136Sonnenerde Pyreg 500, ECOERA Millennium 1 Hammenhög Skånefrö, ECHO2 Holla-Fresh, Aperam BioEnergiaBiochar
20 May 2025- 56Alcom-01-NuevaEcijaPhilippinesBiochar
20 May 2025Down to Earth3OBIO RudshøgdaBiochar
19 May 2025Zooplus25Oregon Biochar SolutionsBiochar
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