and the manufacturing facilities followed in 1966, vacating the Macadam Avenue site. The complex on N.W. Science Park Drive, which remained ESI's headquarters until 2021, had a Portland mailing address, but was not in the city of Portland proper; it occupied unincorporated land which is now adjacent to the city limits of Beaverton. ESI became a publicly traded company in 1983. It traded on the NASDAQ stock exchange under the ticker symbol ESIO. The company opened its first foreign sales office in 1978, in Munich, Germany, and later opened offices in several countries in Southeast Asia. As of 2007 the company also had offices for direct sales in several European countries, as well. Several small companies were acquired by ESI in the late 1990s, including Dynamotion Corp. (of California) in 1997, Chip Star Inc. (California) in 1997, Applied Intelligent Systems Inc. (AISI) (Michigan) in 1997 and Testec Corp. (Arizona) in 1999. A new manufacturing facility was opened in Klamath Falls, Oregon, in early 2001. The company acquired California-based New Wave Research Inc. in 2007. At the beginning of 2009, Electro Scientific had around 700 employees, about half of whom were located in Oregon. Edward C. Grady was named as the president and CEO of ESI in February 2014. The company acquired fiber laser manufacturer Eolite Systems in June 2012, the semiconductor systems business from GSI Group in May 2013, and Chinese laser firm Wuhan Topwin Optoelectronics Technology Co. in January 2015. In August 2016, the company announced that Michael Burger, formerly CEO of Cascade Microtech, would succeed Edward Grady as CEO effective October 3, 2016. Annexation fight In 2005, ESI joined Columbia Sportswear, Tektronix and other Washington County companies in an effort led by Nike to convince the state legislature to prohibit the practice of forcible annexation of "islands" of unincorporated land that have become surrounded by a city. The Nike effort stemmed from an aggressive annexation policy being practiced by the city of Beaverton in 2004, under which the city had added more than of unincorporated land, including the headquarters of Leupold & Stevens (located almost adjacent to ESI, but on the opposite side of the Sunset Highway freeway). Although the then-headquarters sites of ESI and Columbia are not on "islands" surrounded by Beaverton, both directly abut the city boundary, and company officials were concerned about the likely eventual effect of the city's annexation practices should future annexations cause