Cathay Capital-backed Caillau, a French equipment manufacturer specializing in sealing systems for the automotive and aeronautics industries, completed the acquisition of B&K Solare Zukunft, a solar energy equipment supplier. Financial terms were not disclosed. “The combination of our expertise, the complementarity of our product portfolios and our capacity for innovation will allow us to conquer new markets together and generate significant synergies,” Patrick Behnke, B&K Solare Zukunft Director.