Group 1 - Tim Worstall is a wholesaler of rare earth metals and an expert in scandium, contributing to various media outlets [1] - The article emphasizes the importance of understanding details in financial instruments [1] Group 2 - The disclosure from Seeking Alpha states that past performance does not guarantee future results and no investment advice is provided [2] - Analysts contributing to Seeking Alpha may not be licensed or certified by any regulatory body [2]