You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "The Hong Kong company listed on what, cooperates with the operator of Guangzhou-Shenzhen Railway?" whose answer is Hong Kong Exchange.
Each document should contain about 30 words, and these documents should contain useful information.

Query: MTR Corporation and its listing status
Useful Output:

Doc 1: This announcement and the listing documents attached hereto have been published for information purposes only as required by the Rules Governing
Doc 2: Reference is made to the notice of listing of the Programme on The Stock Exchange of Hong Kong Limited dated 29 October 2021 published by MTRCL
Doc 3: Reference is made to the notice of listing of the Programme on The Stock Exchange of Hong Kong Limited dated 31 October 2024 published by MTRCL
Doc 4: Its past status is irrelevant - it is now a listed company and hence in the private sector, and minority shareholders should have the usual rights to approve
Doc 5: MTR Corporation Limited is pleased to present its 2023. Annual Report, “Moving Forward”, an account of the. Company's results and achievements