香港证券交易所 - 上市事宜规则及指引
主要股东 - 股东大会投票权的10%及以上
“substantial shareholder” in relation to a company means a person (including a holder of depositary receipts) who is entitled to exercise, or control the exercise of, 10% or more of the voting power at any general meeting of the company.
Hong Kong Stock Exchange - Rules and Guidance on Listing Matters
Hong Kong Stock Exchange - Main Board Listing Rules
上海证券交易所 - 找不到!
Shanghai Stock Exchange - Laws & Regulations - Framework
Rules Governing the Listing of Stocks on Shanghai Stock Exchange