Richline Group, a Berkshire Hathaway Company | 7,947 followers on LinkedIn. Foremost precious metals and materials manufacturer and marketer. | As a proud Berkshire Hathaway subsidiary, Richline Group has been a global leader in manufacturing and distributing precious and non-precious metals since 2007. Our fully integrated supply chain ensures top-tier responsible sourcing and compliance, every step of the way. Richline Group is comprised of four strategic business units: LeachGarner, Richline Jewelry, Rio Grande, and Inverness.