Involve your suppliers and decarbonize your purchasing

In France, since July 1, 2022, Decree 2022-982 has required companies to report on, define and demonstrate their low-carbon trajectory (transition plan), with immediate application.

The Scope 3 obligation (indirect GHG emissions) for companies with more than 500 people commits to taking into account the “carbon weight” of their purchases, and de facto involves their entire network (subsidiaries, partners, suppliers).

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Involve your suppliers in a process to reduce your carbon footprint.

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Collect precise emission factors from your suppliers.

Improve your carbon competitiveness©
by choosing your suppliers.

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Meet the new CSR and environmental requirements of calls for tender.

Create a more responsible and economical network

Invite your suppliers to calculate their emission factors for free on the GCI platform

Invite your suppliers in your low-carbon path and customize your information requests for each service and delivery.


Easily integrate all your suppliers on the platform, free of charge, for a shared low-carbon dynamic.


GCI allows for the detailed consideration of all three scopes, not just scopes 1 and 2, which generally represent less than 40% of GHG emissions.

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Collect data

Collect reliable, accurate and selective data from your suppliers

Specific request for emission factors for each product and service, with associated PCF (Product Carbon Footprint) qualification questionnaire, in accordance with ISO 14067 and the GHG Protocol.


If the supplier wants to display total transparency, they can also include the detailed list of components taken into account in the calculation of their emission factor, and communicate it to their customers, or a Trusted Third Party approved by GCI who will guarantee full compliance.


Use of composite emission factors calculated on the CCI platform or, by default, use of reference base factors (Base Carbone, Impacts, Inies, Ecoinvent, Defra, etc.)

Communicate and promote the Carbon competitiveness of your company

Opting for GCI allows you to have an objective vision, and to share your real carbon competitiveness®, taking into account all the GHG emissions of the three mandatory Scopes.


In France, the historical price/quality ratio, which was the main criterion used to assess an offer, has been replaced by the triptych quality/price/carbon since the decree of July 1, 2022.


Each buyer must reduce the carbon footprint of their activity to constantly improve the carbon competitiveness® of their company, and also reduce their future carbon tax base.


Suppliers must therefore fully measure and reduce their carbon footprint, to best reduce the "carbon weight" of their offerings, and thus constantly improve their carbon competitiveness®, at the risk of being excluded from a number of calls for offers.

Carbon inventory communication



We answer your questions!

What is decarbonizing purchasing?

Decarbonizing purchasing, also known as "low-carbon purchasing", means committing to practices aimed at reducing the greenhouse gas (GHG) emissions emitted during a company's or public authority's procurement process.

This means that organizations need to calculate the carbon footprint of their products and services, which also includes the activities associated with their production, transport and disposal - in other words, the entire supply chain. The challenge is to minimize this impact by choosing more environmentally sustainable products and suppliers.

The decarbonization of purchasing can include the following solutions:

  • Evaluating its business data through a greenhouse gas balance sheet
  • Choosing sustainable purchasing
  • Working with suppliers who have environmentally-friendly practices
  • Involvement in carbon contribution projects.

Decarbonizing purchasing is therefore a genuine strategy to be adopted by companies and local authorities. It is a way of meeting the challenge of reducing greenhouse gas emissions and promoting more sustainable, environmentally-friendly practices throughout the supply chain. And all this with the aim of contributing to the fight against climate change and promoting the transition to a low-carbon economy.

How can I invite my customers and suppliers to the GCI platform?

GCI offers a complete tool for sending invitations and emission factor requests/transmissions.

You can invite your suppliers to the platform so that they can calculate the carbon footprint of all their products. You can also transmit your own emission factors to your customers, enabling them to measure their carbon impact more accurately.

Is it simple for my suppliers or does it require training?

The platform is suitable for all users, from novices to experts. Thanks to video tutorials, FAQs and methodological guides, your suppliers can easily learn how to calculate the carbon footprint of products without having to undertake specific training on the subject.

What are the benefits for my suppliers?

The benefits are simple:

  • Free calculation of the carbon footprint of their products
  • Compliance of calculations with ISO 14067
  • Direct transmission of the calculated emission factors from the GCI platform to its customers.
Is the GCI platform free for my suppliers?

The tool for calculating the carbon footprint of products is available free of charge to all. Your suppliers can then calculate the emission factor of each product in their catalog.

If they wish to enter into a more complete process of realization of a carbon assessment of their company, they can also do it on the GCI platform for a cost from 450€.

What can I do if my supplier doesn't fill in the emission factors for its products?

While waiting to get the emission factors of your suppliers' products, you can:

  • Use an emission factor from a database provided by GCI (Base Carbone, BEIS ex-UK DEFRA, Ecoinvent, Inies, etc.....)
  • Use the Composite Emission Factor tools which allow you to calculate the carbon footprint of your suppliers' products based on information about the components and processes involved in manufacturing the products.
Does the data collected from my suppliers get included in my Carbon Inventory?

Yes, the data collected from your suppliers can be integrated into your Carbon Footprint. You can use your suppliers' emission factors directly in your Carbon Footprint in the "Incoming Materials and Services" section.