The Responsible Minerals Initiative said this week that its auditing process won’t recognize the findings of the International Tin Supply Chain Initiative without companies doing extra due diligence on the source of their minerals.

ITSCI is a private sector scheme monitoring tin, tantalum and tungsten mines in Democratic Republic of Congo, Rwanda, and Burundi for human rights abuses.

To fill in the gaps and create estimates of critical minerals, geologists developed proxies to estimate tellurium content globally.

Fer et Titane plant in Sorel-Tracy to get upgrades that include electrifying furnaces and replacing coal in a push to cut the facility’s carbon emissions in half by 2030.

Company to evaluate whether antimony from its project in Idaho can meet military specifications to help secure America’s defense and commercial ammunition supply chain.