A Brief History Tosoh Quartz, Inc. was incorporated in the year 2000 but has been in operation in the United States since 1957 and in Europe since 1992. Located in Portland, Oregon and Durham, England, Tosoh Quartz, Inc. produces quartz glassware for the semiconductor industry for use in the processing of integrated circuits. Tosoh Quartz, Inc. has been dedicated to uncompromising quality and service since its inception. The employees of Tosoh Quartz, Inc., driven by their desire to produce the highest quality, technically correct product possible, possess an attention to detail and an "anything is possible" attitude. Through controlled growth and careful training, Tosoh Quartz, Inc. have become known in the semiconductor industry as the quartz fabrication shops whose specialty is providing the customer with products that other suppliers deemed impossible to fabricate. Over 450 employees working within 100,000 square feet in two facilities located in Portland, Oregon and Durham, England comprise the backbone of Tosoh Quartz, Inc. Our design engineering capabilities, training and technology exchange programs, coupled with the latest custom machinery and quality control equipment has allowed us to maintain our reputation of being the industry leader in technology and quality worldwide.