Ellington Electronics Technology Group 依頓電子科技股份有限公司 (simply known as Ellington PCB or Eton) is one of the leading Printed Circuit Board (PCB) manufacturers in China. It is a Hong Kong based company which is listed on the Shanghai Stock Exchange on 1 July 2014. In Year 2013, the company was ranked Top 5 in China and 37th in the world by revenue.