Our special guest is the award-winning Chief Marketing Officer for the Richline Group, Mark talks about Corporate Social Responsibility, the need for ethically sourced gems and jewelry metals, and TrustChain. Recently the Richline Group, which is owned by Berkshire Hathaway, joined with IBM to develop what has been called, TrustChain. In essence, it's blockchain technology to track the origin of jewelry and ensure it's ethically sourced.