Conflict minerals and child labour: Enabling better business with blockchain traceability 2025 Update: Off to a Fast Start! Read on → Search Join About About Explore membership Members Technical Advisory Council Governing Board Speakers Bureau Staff FAQ Store Contact us Technologies Ledger technologies Interoperability Integration & implementation Decentralized identity Cryptographic tools & protocols Project matrix Labs All projects Deploy Certified service providers Vendor directory Training partners Participate Why get involved? How to contribute Contribute to code Host your project with us Regional chapters Special interest groups Job board Resources Linux Foundation ID Logos & guidelines Trademarks & guidelines Charter Code of conduct Github repos Discord Wiki Mailing lists Report a security bug Learn Case studies Training & certifications Use case tracker Member webinars Insights News Blog Announcements Newsletters Events Events Meetups Meeting calendar Join Follow Us Supply Chain | Hyperledger Fabric Conflict minerals and child labour: Enabling better business with blockchain traceability Hyperledger Foundation | Jan 18, 2020 Solution UK-based Circulor created a unique traceability system with scanners, sensors, and weigh scales that generate reliable data at each step of the supply chain. Powered by a permissioned blockchain built on Hyperledger Fabric, the system uses facial recognition and QR codes to ensure that every bag of tantalum from Rwanda is mined, transported, and processed under approved conditions. Results The blockchain-based system is designed to slash the high cost for compliance, to satisfy regulators, and to reassure consumers. The system went live in three mines and an ore-sorting facility in Rwanda in fall of 2018. It now delivers a world first: mine-to-manufacturer traceability of this vital resource. View previous blog post Back to all blog posts View next blog post The latest community news in your inbox Select the checkboxes below for the monthly decentralized digest and dev/weekly newsletters About LF Decentralized Trust The Linux Foundation's flagship organization for the development and deployment of decentralized systems and technologies. About Members TAC Governing board Speakers bureau Staff FAQ Contact us Technologies Ledger technologies Interoperability Integration & implementation Decentralized identity Cryptographic tools & protocols Project matrix Labs Participate Why get involved? How to contribute Contribute to code Host your project with us Regional chapters Special interest groups Job board Deploy Certified service providers Vendor directory Training partners Resources Linux Foundation ID Logos & guidelines Trademarks & guidelines Charter Code of conduct Github repos Discord Wiki Mailing lists Report a security bug Learn Case studies Training & certifications Use case tracker Member webinars Insights Events Events Meetups Meeting calendar News Blog Announcements Newsletters Meeting Calendar Copyright © 2025 The Linux Foundation®. All rights reserved. LF Decentralized Trust is a trademark of The Linux Foundation. For a list of LF Decentralized Trust's trademarks, please see our Trademark Usage page. Linux is a registered trademark of Linus Torvalds. Privacy Policy and Terms of Use.