IRTC establishes an international Round Table on approaches towards assessing materials criticality, taking place in the form of half-day workshops at established international conferences. Results will be published in the form of three joint scientific papers and a Roadmap on Criticality for authorities. The project is advancing the research in criticality assessment, fosters international exchange and education in the topic, identifies common ground and differences, and raises awareness towards materials criticality, especially in industry. It also lays the cornerstone for a long-lasting international network. The project is coordinated by ESM Foundation, Switzerland. The proposal was submitted within the 2017 Call for Internationalization Projects at EIT Raw Materials and accepted for funding in 2018 and 2019.