Our fee structure rewards scale and accommodates different levels of audit complexity. Pricing remains simple and accessible: no audit costs, no separate trading fee, and a fixed fee per unit at first transfer.
fee structure
The service fee structure is designed to be transparent, predictable, and scalable. It decouples the cost from the number of issued CORCs and does not rely on the value of the credit. It rewards for high volumes and scalability, accounts for varying levels of audit complexity, and creates a simple fee model by not having a secondary trading fee and instead having a fixed fee per unit retirement fee.
why Puro.earth
Transparent, predictable, and scalable
Supplier-controlled market access
Suppliers maintain full ownership of their buyer relationships and their CORCs. Puro.earth provides independent certification infrastructure without controlling commercial transactions, enabling direct market access and transparent pricing.
0% Secondary trading fees
To support high-volume trading and reduce friction for commodity traders and intermediaries, Puro.earth has eliminated fees for secondary transactions. Costs are instead consolidated into a single fixed retirement fee at the end of the credit lifecycle.
96% Volume discount potential
Our certification fee structure is decoupled from credit value and specifically designed to reward scalability. Unit costs drop to as low as €0.40 per unit for high-volume industrial suppliers.
€0 Retirement fees
We offer a full waiver of retirement and listing fees for customers who report long-term offtake agreements. This strategic waiver makes multi-year trades more cost-effective and encourages the advanced market commitments needed for project bankability.
transparency
Transparent and Simple Cost Structure
Annual Fee
After signing the Platform Agreement, the organization is created in the Puro registry and the users get access to their main account. It is possible to create a number of subaccounts to manage credits. The Annual Fee is 1400€ per 12-month period, starting from the date of signing.
The Puro.earth Service Fee
The service fee is either a fixed amount per CORC (CO2 Removal Certificate) depending on the reported cumulative volume of CORCs for the past 12 months or a flat fee if the production facility and output audit do not meet CORC minimums. The fee is determined by the volume of CORCs reported in the Output Report, which is submitted by the CO2 Removal Supplier to the Issuing Body. We do not charge extra for opening, closing, or reactivating accounts.
overview
Overview of the New Service Fee Structure
1. Fixed Fee per CORC or a Flat Fee
Fixed Fee per CORC
For all production facility and output audits deemed complete by the Issuing Body abovethe minimum CORC threshold, as defined in tier 1 of the pricing table in Section 6 below, the service fee is paid by the supplier when the CORC or credit is traded for the first time. The fee is invoiced to the supplier upon trade or retirement. Note that the retirement fees are still applicable unless waived per section 3 below.
Flat Fee
For all production facility and output audits deemed complete by the Issuing Body below the minimum CORC threshold, as defined in tier 1 of the pricing table in Section 6 below, a supplier will pay a fee of 12 000€ to be invoiced when Audit has been booked.
2. Volume-Based Pricing
Puro offers a steep discount per CORC if production facilities and output audits are above the required minimum CORC threshold. The volume step is determined by the reported output volume over the last 364 days. There are 37 discount steps that reduce the cost by a factor of 30 as volume grows, providing a more granular and scalable model.
3. Discounts and Fees
Issuance Payment Discount
Suppliers paying the service fee at the time of issuance receive a 5% discount.
Retirement Fee
A retirement fee of 0,25€ per retired CORC is charged to the account holder performing the retirement.
Retirement Fee Waiver
The retirement fee will be waived on retired CORC volumes where all the below conditions are met:
The Supplier has reported the sale in the Portal (MyPuro) within (a) 30-days of signing the sales agreement or (b) within 30-days of signing the Platform Agreement, whichever of (a) or (b) happens last.
The Supplier has reported all information from the sales agreement as required in the Portal (My Puro), notably all volumes (firm and optional), delivery dates and prices.
The Supplier is set to deliver CORCs under the sales agreement over a period spanning more than 1 calendar year.
The Supplier has submitted proof (redacted contract) for items above.
Puro.earth has confirmed to the Supplier that Retirement Fees on such reported CORC volumes will be waived.
Note that Puro.earth will continue to generate and send the invoice to the Account Holder retiring the CORCs, even though the Retirement Fee is zero. The invoice will include a note stating that the Retirement is part of the sales agreement reported to Puro. This is to notify the Account Holder that the retirement qualifies for an exemption from the Puro Retirement Fee.
There is no Secondary Trading Fee.
4. Verification Complexity Level Premium
A premium is added for methodologies that are more complex to quantify and verify.Overview of the New Service Fee Structure
Methodology
Percentage
Biochar
0%
Geologically Stored Carbon
0%
Carbonated Materials
6%
Terrestrial Storage of Biomass
12%
Enhanced Rock Weathering
12%
SDGs
Percentage
SDG 13 – Climate Impact (included in service fee)
0%
Each extra SDG
2.5%
5. Pooling Admin Fee
A fee of 2 000 € per facility per year is charged for pooling volumes, invoiced when the pooling request is made.
6. Service Fee Table (including volume discount)
Tier
Reported output (CORC
Cost per reported CORC (€)
From
To
1
–
<= 1000
Flat fee applies See section 1 above
2
1 001
2 000
€ 10.00
3
2 001
5 000
€ 8.00
4
5 001
10 000
€ 7.75
5
10 001
20 000
€ 7.50
6
20 001
30 000
€ 7.00
7
30 001
40 000
€ 6.66
8
40 001
50 000
€ 6.33
9
50 001
60 000
€ 6.00
10
60 001
70 000
€ 5.50
11
70 001
80 000
€ 5.00
12
80 001
90 000
€ 4.50
13
90 001
100 000
€ 4.00
Tier
Reported output (CORC
Cost per reported CORC (€)
From
To
14
100 001
125 000
€ 3.50
15
125 001
150 000
€ 3.25
16
150 001
175 000
€ 3.00
17
175 001
200 000
€ 2.75
18
200 001
250 000
€ 2.50
19
250 001
300 000
€ 2.25
20
300 001
350 000
€ 2.20
21
350 001
400 000
€ 2.10
22
400 001
450 000
€ 2.00
23
450 001
500 000
€ 1.75
24
500 001
600 000
€ 1.50
25
600 001
700 000
€ 1.35
26
700 001
800 000
€ 1.20
Tier
Reported output (CORC
Cost per reported CORC (€)
From
To
27
800 001
900 000
€ 1.05
28
900 001
1 000 000
€ 0.90
29
1 000 001
2 000 000
€ 0.75
30
2 000 001
3 000 000
€ 0.70
31
3 000 001
4 000 000
€ 0.66
32
4 000 001
5 000 000
€ 0.61
33
5 000 001
6 000 000
€ 0.57
34
6 000 001
7 000 000
€ 0.53
35
7 000 001
8 000 000
€ 0.48
36
8 000 001
9 000 000
€ 0.44
37
9 000 001
10 000 000
€ 0.40
7. Increased Audit Frequency Under General Rules 4.1
The number of times a Supplier may submit Production Facility Audit documentation and/or an Output Report per Production Facility per 12-month period for Output Audit is determined by the table below:
CORCs per Production Facility per rolling 365-day Period
of Allowed Output Reports per Production Facility
60 000+
12 times per year
30 000–59 999
6 times per year
20 000–29 000
4 times per year
10 000–19 000
2 times per year
Below 9 999
1 times per year
Suppliers currently using Ongoing Issuance Rights as defined prior to General Rules 4.1 can continue doing so until the end of their current ongoing Monitoring Period.
timeline
Cost Timeline
Service Fee Calculator
The Puro.earth service fee calculator is an interactive tool to help you visualize your service fee pricing based on the volume of estimated annual output of CORCs and the price level of CORCs.
The Puro Registry is used for tracking the entire lifecycle of the credit. As we discontinued the secondary trading fee which would incur costs for each transaction, but was not welcomed by some commodity traders, we decided to move to single fixed cost at the end of the lifecycle to cover some of the costs of maintaining the system.
The new fee model will be operational at the beginning of October 2024. This means that for any transactions happening after that date, the new service fee applies. For existing CO2 Removal suppliers, the fees will be based on the cumulative volume over the last 364 days from the date of issuance of their CORCs.
On February 2, 2025, Puro implemented a new minimum CORC fee structure to enhance the efficiency of our audit processes and scale the CDR industry better, faster, and stronger. We also implemented a waiver that is a significant advantage for our customers that meet certain requirements, as it eliminates the Retirement Fee, making long-term offtake trades more cost-effective and attractive.
Register your interest here. For a supplier to be issued CO2 Removal Certificates (CORCs) the product that sequesters carbon and the production facility must be verified.
Once initially qualified by the Puro Team, there are three steps to making a claim that your production is carbon net-negative:
You must have documented evidence of the carbon footprint of your production: an Environmental Product Declaration (EPD) or a Lifecycle Assessment (LCA) for the cradle-to-gate carbon footprint of your production. If you don’t have an LCA or EPD, we can put you in contact with companies who can do it for you.
Send the EPD or LCA document to your account manager.
When we have this information, we will start a verification process by contacting you within the coming days.
This is the output volume that a CO2 removal supplier reports to the issuing body when submitting their production output report.
