The companies, all of which planned to list on
China's Shenzhen stock exchange, made the announcements in
filings to the exchange.
The China Regulatory Commission said in a statement late on
Sunday that it would strengthen its supervision of IPOs, after a
small drug maker postponed its share sale saying it was "too
The stock watchdog, which had promised a more hands-off approach
to IPOs after resuming them earlier this month following a
15-month hiatus, said it will step up monitoring of the deals
and their pricing.
(Reporting by Lu Jianxin and Pete
Sweeney; editing by Richard Pullin)
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