Question: The Hong Kong company listed on what, cooperates with the operator of Guangzhou-Shenzhen Railway?
Sentence (from "Guangshen Railway (company)"): Guangshen Railway Co., Ltd. (GSRC) is the operator of Guangzhou-Shenzhen Railway (Guang-shen Railway), the 152-kilometre railway link between Guangzhou and Shenzhen in Guangdong, China.
Relevant evidence: Yes