The company said the production freeze was intended to learn lessons from the flooding and eliminate safety hazards.
The Hong-Kong listed miner expressed confidence the short-term closure would not have a material impact on the operation of the company.
The underground mine produced 1.51 million tonnes of coal in 2011 for China Coal subsidiary Shanghai Energy.
Earlier this week, the Chinese government announced it was raising minimum coal mine safety requirements due to a string of fatal tragedies.
The revisions represented the country’s first significant security boost since previous standards set in 2004.