Ultra Clean Holdings, a developer and supplier of critical subsystems, ultra-high purity cleaning and analytical services primarily for the semiconductor industry, completed the acquisition of Ham-Let, a manufacturer of instrumentation and valves and fittings, subsea valves, large bore cryogenic valves and gas delivery systems, for $348m. "This transaction represents a significant benefit to Ham-Let, its employees, its customers and its shareholders. By leveraging UCT's global footprint, we can deliver a broader range of solutions and increase the combined company's strategic relevance to its customers. We look forward to working closely with UCT to ensure a smooth transition," Amir Widmann, Ham-Let CEO.