Tseng Chung Lee

Chief Executive Officer at MKS INC.

Net worth: 49 M $ as of 2026-05-30

63 year

83 connections

Producer Manufacturing

Electronic Technology

Finance

Profile

Presently, John Tseng Chung Lee holds the position of President, Chief Executive Officer & Director at MKS Instruments, Inc.
In the past Dr. Lee was Director at SiXtron Advanced Materials, Inc., Managing Director-Factory Technology & Projects at Applied Materials, Inc., Research Director at Lucent Technologies, Inc. and Member-Technical Staff at Bell Laboratories.
Dr. Lee received an undergraduate degree from Princeton University and a doctorate and a graduate degree from Massachusetts Institute of Technology.

Known holdings in public companies

Company	Date	Number of shares	Valuation	Valuation date
MKS INC. 0.21%	2026-05-21	144,696 ( 0.21% )	47 M $	2026-05-30
COGNEX CORPORATION 0.01%	2026-02-26	24,820 ( 0.01% )	2 M $	2026-05-30

Latest news about Tseng Chung Lee

06-03	Hong Kong vies to win over resource-rich Central Asia as Lee tours region	RE
03-25	Hong Kong regulator aims to clean up maintenance contracts after deadly fire	RE
01-26	Hong Kong agrees deal with Shanghai Gold Exchange for gold clearing system, warehousing	RE
12-12	Hong Kong leader says fire probe expected to conclude within 9 months	RE
12-02	Hong Kong orders judge-led inquiry into fire that killed 156	RE

Tseng Chung Lee active positions

Companies	Position	Start
MKS INC.	Chief Executive Officer	2019-12-31
COGNEX CORPORATION	Director/Board Member	2022-05-03

All active positions of Tseng Chung Lee

Former positions of Tseng Chung Lee

Companies	Position	End
Massachusetts High Technology Council, Inc. Massachusetts High Technology Council, Inc. Internet Software/ServicesTechnology Services Engages in collective and collaborative technologies	Chairman	2024-12-31
SiXtron Advanced Materials, Inc. SiXtron Advanced Materials, Inc. Industrial SpecialtiesProcess Industries Develops proprietary process to produce SiC based thin films	Chairman	2009-05-10
APPLIED MATERIALS, INC.	Corporate Officer/Principal	2007-09-30
Lucent Technologies, Inc. Lucent Technologies, Inc. Telecommunications EquipmentElectronic Technology Designs and builds a wide range of public and private networks, communications systems and software, and data networking systems, as well as telephone systems and microelectronic components	Chief Tech/Sci/R&D Officer	2001-12-31
Bell Laboratories Bell Laboratories Miscellaneous Commercial ServicesCommercial Services Provides research and development services	Corporate Officer/Principal	1996-12-31

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Training of Tseng Chung Lee

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Linked companies

Private companies	9
Applied Materials, Inc. Applied Materials, Inc. Industrial MachineryProducer Manufacturing Designs, develops, manufactures and sells equipment to fabricate semiconductor chips, spare parts, factory automation software & liquid crystal displays	Producer Manufacturing
Cognex Corp. Cognex Corp. Electronic Equipment/InstrumentsElectronic Technology Develops, manufactures and markets machine vision computer systems	Electronic Technology
Lucent Technologies, Inc. Lucent Technologies, Inc. Telecommunications EquipmentElectronic Technology Designs and builds a wide range of public and private networks, communications systems and software, and data networking systems, as well as telephone systems and microelectronic components	Electronic Technology
MKS, Inc. MKS, Inc. Industrial MachineryProducer Manufacturing Manufactures instruments, components and subsystems to measure, monitor, deliver, analyze, power and control critical parameters	Producer Manufacturing
Massachusetts Institute of Technology Massachusetts Institute of Technology Finance/Rental/LeasingFinance Functions as a College/University	Finance
Princeton University Princeton University Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
Bell Laboratories Bell Laboratories Miscellaneous Commercial ServicesCommercial Services Provides research and development services	Commercial Services
Massachusetts High Technology Council, Inc. Massachusetts High Technology Council, Inc. Internet Software/ServicesTechnology Services Engages in collective and collaborative technologies	Technology Services
SiXtron Advanced Materials, Inc. SiXtron Advanced Materials, Inc. Industrial SpecialtiesProcess Industries Develops proprietary process to produce SiC based thin films	Process Industries