While there was a commitment in principle to the strategy of developing the portal, it was not a financial commitment of $100 million, he said.
"In this context, a commitment to a strategy is quite different to a commitment to spend money," he said.
"At no time did the words 'commitment to capital investment' mean we had signed off on a $100 million capital allocation. If that was the case, it would be in our accounts and there would be funding plans and all sorts of things.
"We affirmed a direction for the business and what that could look like. It was a commitment to trying to make that happen."
Paviour-Smith also described Clear's failure to meet three targets for the first earnout payment to Ralec. The initial target was trading of 1.5 million tonnes by June 30, 2010, with further targets of 3 million tonnes by June 2011 or 4.5 million tonnes by June 2012.
The second target was based on the successful delivery of the agri-portal.
"Clear had fallen well short of the targets required for this payout to be earned, with volumes respectively of only 14 per cent, 13 per cent and 17 per cent of the annual seasonal targets specified in the SPA [sale and purchase agreement]," he said.
North also asked Paviour-Smith about the board's reliance on information provided by Ralec. Ralec has argued the NZX board never considered predictions made by Clear before its acquisition. Paviour-Smith said the board knew the due diligence reports were the result of interaction between NZX management and Clear.
"It becomes obvious to anyone reading a due diligence report that there has been a very heavy level of interaction," Paviour-Smith said.
"A due diligence report is not a desktop exercise. They spent an extensive amount of time in the business. The board knows this is being produced after extensive engagement with the business people."
The case, which is ongoing, pre-dates much of NZX's existing management, having first hit the courts in 2011.