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
662 644
Issued CORCs
1 158 145
Projects
87

Methodology

Retirement dateSort
Beneficiary
Retired CORCsSort
Projects
Methodologies
29 Jul 2025CNaught customers40Farm Gai Kaisa 159Biochar
24 Jul 2025- 1Four BordetBiochar
22 Jul 2025CNaught customers30Farm Gai Kaisa 159Biochar
16 Jul 2025- 4000Exomad Green, ConcepciónBiochar
15 Jul 2025La Compagnie Bourdonnante13Four BordetBiochar
11 Jul 2025Dayforce, Inc.375Exomad Green, ConcepciónBiochar
10 Jul 2025Anthesis753Douglas County Forest Products, Freres Lumber Co., Inc., Exomad Green, ConcepciónBiochar
08 Jul 2025- 5Carbon Cycle, 001, Rieden, DEBiochar
08 Jul 2025Nasdaq, Inc.8500Red Trail Energy LLCGeologically stored carbon
03 Jul 2025WRLD Foundation19InterEarth BowgadaTerrestrial Storage of Biomass
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