Yesterday, Wrightson, the listed rural services firm controlled by China's Agria Corp, revealed the commission believe it had breached the Commerce Act over how it charged fees during the scheme's implementation and that it would "seek a pecuniary penalty from PGW".
Wrightson has cooperated with the investigation and said the penalty, while significant, is unlikely to be "materially price-sensitive".
Companies convicted of price-fixing can attract a maximum penalty that's the greater of $10 million, or three times the commercial gain, or if that can't be established easily, 10 per cent of turnover.
Rural Livestock chairman John Faulks said he didn't know about the investigation and declined to comment. Elders New Zealand also declined to comment.
Wrightson shares were unchanged at 47 cents on the NZX.