What are the security companies of Guangzhou Metro?

Guangzhou Security Service Corporation (Fenggang Base of Metro Safety Department), Guangzhou Metro Group Co., Ltd., Guangzhou Metro Design and Research Institute Co., Ltd., etc. According to Baidu map query:

1. Guangzhou Security Service Corporation (Fenggang Base of Metro Security Department) is located in Dongjiu Lane, Yapu Street 16;

2. Guangzhou Metro Group Co., Ltd. is located in Xingang East Road, Haizhu District, Guangzhou City, Guangdong Province;

3. Guangzhou Metro Design and Research Institute Co., Ltd. is located at No.204 Huanshi West Road, Yuexiu District, Guangzhou City, Guangdong Province.