Private equity firm Bain Capital agreed to invest $1.8bn in II-VI, a provider of engineered materials and optoelectronic components. "We are thrilled to partner with Chuck and the II-VI management team, who have outstanding operational experience and a strong M&A track record. The combination of II-VI and Coherent will create a leading platform in the photonics industry. We are excited about what this combined company will achieve in the years to come," Steve Pagliuca, Bain Capital Co-Chairman.