AptarGroup, Inc. engages in the design, manufacture, drug delivery, consumer product dispensing, sealing and active packaging solutions, and services for the prescription drug, consumer health care, injectable, active packaging, beauty, personal care, home care, and food and beverages industries. It operates through the following segments: Pharma, Beauty, Closures, and Corporate and Other. The Pharma segment sells proprietary dispensing systems, drug delivery systems, sealing solutions, pharma packaging, and services to the prescription drug industry. The Beauty segment refers to dispensing systems and sealing solutions to the beauty, personal care and home care markets. The Closures segment is involved with dispensing closures, sealing solutions and food service trays to the food, beverage, personal care, home care, beauty and other markets. The company was founded in 1940 and is headquartered in Crystal Lake, IL.

Entegris, Inc. engages in the development, manufacture, and supply of specialty materials for the microelectronics industry. It operates through the Materials Solutions (MS) and Advanced Purity Solutions (APS) segments. The Materials Solutions segment provides materials-based solutions, such as chemical vapor and atomic layer deposition materials, chemical mechanical planarization ("CMP") slurries and pads, ion implantation specialty gases, formulated etch and clean materials, and other specialty materials that enable customers to achieve better device performance and faster time to yield, while providing for lower total cost of ownership. The Advanced Purity Solutions segment offers filtration, purification and contamination-control solutions that improve customers' yield, device reliability and cost by ensuring the purity of critical liquid chemistries and gases and the cleanliness of wafers and other substrates used throughout semiconductor manufacturing processes, the semiconductor ecosystem and other high-technology industries. The company was founded in 1966 and is headquartered in Billerica, MA.