Impala Platinum (OTCMKTS:IMPUY – Get Rating) and Sigma Lithium (NASDAQ:SGML – Get Rating) are both mid-cap basic materials companies, but which is the better investment? We will contrast the two companies based on the strength of their dividends, risk, earnings, valuation, analyst recommendations, institutional ownership and profitability. Institutional & Insider Ownership 6.6% of Sigma Lithium […]