PORTLAND, Ore. — (BUSINESS WIRE) — January 19, 2015 — Electro Scientific Industries, Inc. (Nasdaq: ESIO), a leading supplier of innovative laser-based manufacturing solutions for the microtechnology industry, today announced it has completed the acquisition of Topwin Optoelectronics, a fast-growing, innovative laser design and manufacturing systems company based in Wuhan, China.

The Topwin acquisition significantly increases ESI’s ability to design, build, and sell into the China market. Topwin’s design and manufacturing expertise, with its deep understanding of the China market, coupled with ESI's strong technology and customer service infrastructure, creates a unique opportunity to address the large and growing Chinese market for laser microfabrication tools.

About ESI, Inc.

ESI’s integrated solutions allow industrial designers and process engineers to control the power of laser light to transform materials in ways that differentiate their consumer electronics, wearable devices, semiconductor circuits and high-precision components for market advantage. ESI’s laser-based manufacturing solutions feature the micro-machining industry’s highest precision and speed, and lowest total cost of ownership. ESI is headquartered in Portland, Ore., with global operations from the Pacific Northwest to the Pacific Rim. More information is available at www.esi.com.

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ESI
Brian Smith, 503-672-5760
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