Donghu New Technology Development Zone (Chinese: 东湖新技术产业开发区), also referred to as Optics Valley (Chinese: 光谷; pinyin: Guanggu)[1] or Guanggu, is a New Technology Development Zone in Wuhan, China.[2] It was established in 1988.[3] In 1991 it was approved as one of the National New Technology Development Zones of China.