Proof of identity
Last updated 3 November 2025
A short history of the development of the BidCarbon Unit and Certificate (BUC) Registry.
The BUC Registry contract has been awarded to BidCarbon Big Data Chengdu Limited, a the mainland of China company.
November 2023
The BUC Registry is opened to authorised users. Organisations or individuals (non-government) can apply to open accounts and participate in the domestic and international trade of BidCarbon removal units.
January 2024
The BUC Registry upgraded to allow for BidCarbon removal units created under approved BidCarbon Standard Scheme projects to be issued and traded.
February 2024
September 2024
Award of auction business contract to BigCarbon Big Data Chengdu Limited.
Carbon credits
Learn about our markets, carbon credits, and supply and demand.
Buying and selling carbon data rights certificates
Learn how to trade carbon data rights certificates through the open market or BidCarbon marketplace.
Applying for carbon data rights certificates
Learn how to apply for a carbon data rights certificate to sell your BRUs.
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