Rhône Capital, a private equity firm, agreed to acquire a 20% stake in RHI Magnesita, a supplier of refractory products, systems and services, for £268m ($331m). RHI Magnesita, together with its subsidiaries, is a global supplier of high‐grade refractory products, systems and solutions which are critical for high‐temperature processes in a wide range of industries, including steel, cement, non‐ferrous metals and glass.