MarketwatchNot sure how to post a link but its below. Marketwatch story on tungsten. Eric Coffin named Playfair as the junior with the best upside.
https://www.marketwatch.com/news/story/Story.aspx?guid=%7BFE6E56A3%2D7358%2D456D%2D8644%2DC57658EFB1A7%7D&siteid