Labour will push for an inquiry into Solid Energy's near failure by the auditor-general, state owned enterprises spokesman Clayton Cosgrove says.
Mr Cosgrove's request for a select committee inquiry into the state-owned coal company's near collapse was voted down this morning by National MPs on the commerce committee.
However Mr Cosgrove told the Herald Labour would write to the auditor-general seeking an inquiry because it believed that after only three hours of parliamentary hearings into the company's problems, important information was still to be revealed.
Mr Cosgrove said he was aware of "other matters'' regarding the company's problems that had yet to be disclosed.
He said Labour had pushed for a select committee hearing so particular individuals would be able to offer important information with parliamentary protection.