AT&S also known as AT & S Austria Technologie & Systemtechnik Aktiengesellschaft designs and manufactures high-end printed circuit boards and substrates for semiconductors. The company is listed on the Vienna Stock Exchange. The company has six production sites worldwide Leoben & Fehring, Austria Nanjangud, India Chongqing & Shanghai, China Kulim, Malaysia and 9 sales support offices San Jose & Chicago, USA Düren, Germany Stockholm, Sweden Bengaluru, India Seoul, South Korea Tokyo, Japan Taipei, Taiwan Hong Kong, China Wikipedia