MKS Instruments, Inc. (MKS) is a worldwide provider of instruments, subsystems and process control solutions that measure, control, power, monitor and analyze critical parameters to improve process performance and productivity of advanced manufacturing processes. The Company also provides services relating to the maintenance and repair of its products, software maintenance, installation services and training. MKS groups its products into three product groups: Instruments and Control Systems, Power and Reactive Gas Products, and Vacuum Products. MKS’ products are used in diverse markets, applications and processes. The Company’s primary served markets are manufacturers of capital equipment for semiconductor devices and for other thin film applications including flat panel displays, solar cells, data storage media and other advanced coatings.