Who is the construction unit of Zhangzhou-Shantou high-speed railway?

Zhong Jian Strait Construction and Development Co., Ltd. According to the relevant information of Zhangshan High-speed Railway, Zhong Jian Strait Construction and Development Co., Ltd. (hereinafter referred to as "Zhong Jian Strait") is a large regional subsidiary of China State Construction Engineering Corporation (with a registered capital of 6,543.80 billion yuan). High-speed railway, referred to as high-speed railway for short, refers to a railway system with high design standards and high speed for the safe running of trains. Its concept is not limited to tracks, let alone trains. High-speed rail has different regulations in different countries, different times and different scientific research and academic fields.