US: Residents in Anaconda, Montana have put questions to a proposed copper slag processing plant project as part of a community outreach initiative. Premier Industries wants to build a plant to use copper slag left over from the local copper industry to produce proppant, a material used in oil fracking and natural gas extraction, according to the Montana Standard newspaper. The project, first announced in early 2016, is scheduled to start operation by the end of the first quarter of 2018. Questions from the local community covered jobs, the financial viability of the project and increased traffic.