D & H Manufacturing is a key supplier to Applied Material, Novellus, Lam Research, and KLA Tencor specializing in complex, high precision machined parts and mechanical assemblies with a focus on the Semiconductor Industry. In 2008, D&H acquired CDS Engineering. In 2011, D&H launched a wholly owned subsidiary in Vietnam. Celestica on September 7, 2012 aquired 100% of the stock of D&H. D&H is expected to change its name to Celestica Precision Machining.