Investor Presentaiton

Complementary Technology Leaders ••mks Founded 1961 Headquarters in Andover, MA CY 2017 Revenue of $1.9B 4,900+ Employees . 1,500+ Global Patents R&D Spending ~$133M R&D Headcount ~750+ Leadership in UV and ultrafast lasers Motion, photonics & optics RF power & plasma Vacuum processing; precise control of pressure, flow & composition esi Founded 1944 Headquarters in Portland, OR CY 2017 Revenue of $304M 600+ Employees* 1,000+ Global Patents* R&D Spending ~$35M R&D Headcount ~140+* Leadership in Laser-based process equipment - Advanced PCB processing - Semi manufacturing - Component manufacturing ••mks Source 2017 MKSI 10K * Fiscal Year 2018 ESIO 10K MKS PROPRIETARY о о о ° 0 0 0 © O 19

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