Critical Materials Circularity Network (CMCN)
Exploring how circular systems can support secure, sustainable supplies of the critical materials needed for a low-carbon future.
About the network
The Critical Materials Circularity Network (CMCN) explores how circular systems for critical materials can be designed, governed and scaled in practice.
Materials such as lithium, cobalt and rare earths are essential to electrification and low-carbon technologies. However, current linear models of production and consumption present challenges for their secure, affordable and sustainable supply.
Our interdisciplinary network investigates how materials and products can remain in use for longer, how circular supply chains can be developed and how organisations can make the transition to more responsible and resilient systems.

Circular supply chains
We examine take-back systems, reverse logistics, capacity planning and partnerships that can help create more resilient circular value chains.
Circular business models
We explore second-life applications, product-service systems, ownership models and new ways to create and capture value from materials and products.

Digitalisation and governance
We investigate traceability, digital product and material passports, and how organisations can develop more responsible and transparent supply chains.

Measurement, finance and policy
We consider material flow and carbon accounting, cost-benefit analysis, ESG assurance, investment mechanisms and the regulatory frameworks needed to support circular systems.
Who we are
The network brings together researchers from Newcastle University and collaborators with expertise spanning operations, supply chain management, sustainability, work and employment, accounting, marketing and engineering.
Convenors
Convenor: Dr Jiayao Hu
Co-convenor: Dr Yan Jiang
Newcastle University members
Newcastle University Business School
- Dr Jiayao Hu
- Professor Chris Hicks
- Professor Ying Yang
- Professor Noemi Sinkovics
- Dr Ana Lopes
- Dr Erwei Xiang
- Dr Paul Liu
- Dr Haiyan Lu
- Dr Xiaotian Xie
- Dr Rohit Sharma
- Dr Yan Jiang
- He Zhu (PhD student)
- Yiding Shi (PhD student)
School of Engineering
- Dr Yimeng Liu
Find out more
For enquiries about membership, collaboration or research activities, please contact the network convenors.
Professor Jytte Seested Nielsen – jytte.nielsen@ncl.ac.uk
Dr Till Weber – till.weber@ncl.ac.uk
