The operator of the New Zealand stock exchange says it is continuing to consider a complaint about Refining NZ's announcement to the market on Monday.
Under listing rules, a company is required to release to the market any information that a reasonable person would expect to have a material effect on the price of that firm's shares.
"NZX is continuing to consider the complaint lodged in respect of NZ Refining's announcement of 18 September. Those inquiries will follow the process for investigations as detailed in NZX's enforcement policy, and as such, NZX is not in a position to provide further information at this time," a spokeswoman for NZX said today.
"It is also important to note that not all information relevant to a listed company, its operations or commercial arrangements, will be material information for the purposes of the listing rules," she said.
"Information that is not material information is not subject to the obligations for immediate disclosure. In addition, NZX notes that information may develop over time, in circumstances where a company is required to assess that developing information to make an informed determination on its potential materiality.