公司简介 [About us] (in Chinese (China)). China Railway Group Limited. Archived from the original on 16 December 2018. Retrieved 24 February 2019.
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企业机构变迁沿革 (in Chinese (China)). China Railway First Survey and Design Institute Group. 12 June 2008. Archived from the original on 24 February 2019. Retrieved 24 February 2019.
"Relationship with CRECG"(PDF). Global Offering (Prospectus). Translated by anonymous. China Railway Group Limited. 22 November 2007. Archived from the original on 18 February 2019. Retrieved 18 February 2019 – via Hong Kong Exchanges and Clearing website.
企业机构变迁沿革 (in Chinese (China)). China Railway First Survey and Design Institute Group. 12 June 2008. Archived from the original on 24 February 2019. Retrieved 24 February 2019.
"Relationship with CRECG"(PDF). Global Offering (Prospectus). Translated by anonymous. China Railway Group Limited. 22 November 2007. Archived from the original on 18 February 2019. Retrieved 18 February 2019 – via Hong Kong Exchanges and Clearing website.