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Tometich named president of Hemlock Semiconductor; Doornbos remains CEO


Andrew E. Tometich was named president of the entities comprising the Hemlock Semiconductor Group, effective immediately. Richard S. Doornbos remains chief executive officer.

“Hemlock Semiconductor’s rapid expansion in the past five years – and our expectation of continued growth – requires expanded leadership as we solidify our position as one of the global leaders in the solar and semiconductor industries,” said Doornbos. “Andy’s demonstrated capacity for strategic thinking and his broad, deep and diverse experience in business management will help to assure our continued success.”

Doornbos has provided leadership of Hemlock Semiconductor’s growth since 2006, overseeing more than $4.5 billion of investment and record financial performance.

“Rick’s leadership during this period of unprecedented growth has driven Hemlock Semiconductor into a new era,” said Tometich. “I am eager and privileged to have the opportunity to work alongside Rick and the entire Hemlock Semiconductor team.”

Tometich joined Dow Corning Corporation in 1989, and most recently served as business vice president of strategic feedstocks for Dow Corning’s Core Products Business. He has served on Hemlock Semiconductor’s board of directors since 2010.

In his more than 22-year career at Dow Corning, Tometich has served in various commercial, business development and executive positions in the United States and Europe. He has served on the board of directors of several Dow Corning entities and ventures, including West Virginia Alloy L.L.C., Québec Silicon L.L.P., Dow Corning Ltd., Dow Corning Sti Inc. and several Multibase entities.

Tometich holds a bachelor’s degree from the University of Notre Dame, a master’s of business administration from the Kellogg School of Management at Northwestern University and has completed formal executive-level studies at INSEAD.

About Hemlock Semiconductor Group
Hemlock Semiconductor Group ( consists of several joint venture companies owned by Dow Corning Corporation, Shin-Etsu Handotai and Mitsubishi Materials Corporation. Hemlock Semiconductor is a leading provider of polycrystalline silicon and other silicon-based products used in the manufacturing of semiconductor devices and solar cells and modules. Hemlock Semiconductor began its operations in 1961.

About Dow Corning
Dow Corning ( provides performance-enhancing solutions to serve the diverse needs of more than 25,000 customers worldwide. A global leader in silicones, silicon-based technology and innovation, Dow Corning offers more than 7,000 products and services via the company’s Dow Corning® and XIAMETER® brands. Dow Corning is equally owned by The Dow Chemical Company and Corning, Incorporated. More than half of Dow Corning’s annual sales are outside the United States. Dow Corning’s global operations adhere to the American Chemistry Council’s Responsible Care® initiative, a stringent set of standards designed to advance the safe and secure management of chemical products and processes.


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