The Shanghai and Shenzhen stock exchanges revised rules to allow dual-class shares listed on the Hong Kong stock exchange to be included in their stock connect schemes with their Hong Kong peer, effective Oct. 28, Reuters reported Oct. 19.

The revised rules would allow companies with dual-class shareholding structures to be included in the stock connect schemes between Hong Kong and mainland China. Under the revised rules, stocks qualified for inclusion in the stock connect scheme must meet certain thresholds in terms of liquidity, market cap and trading period, according to the report.

Further, stock must have a minimum listing history of six months plus 20 trading days on Hong Kong Exchanges & Clearing Ltd. and a minimum market cap of HK$20 billion on average during the 183 days before the vetting.

The Hong Kong and Chinese stock exchanges agreed in July 2018 to look into the issue of including dual-class shares in the stock connect scheme.