Factual background
5Before dealing with the cross-claim itself, it is necessary to say something more about the history of the dispute between Kation and Lamru.
6Following the appointment of a liquidator to Nortex, Lamru lodged a proof of debt for $2,301,985.79. Broadly speaking, that proof of debt had three components.
7One component was for Lamru's loan account balance which, at the date of liquidation, was said to be $786,279.37. A second component consisted of various claims in respect of benefits which were said to have been received improperly by Mr Lewis or Mr Mark Lewis, who was Mr Peter Lewis's son and who also worked in the business carried on by Nortex. A third component arose from what were said to be unequal profit distributions made to Kation and Lamru.
8The liquidator admitted Lamru's proof of debt for $494,921.37. In doing so, he accepted Lamru's claim in respect of the loan account subject to an adjustment. However, the liquidator rejected claims based on allegations that Mr Peter Lewis and Mr Mark Lewis had improperly received benefits from Nortex and claims based on the allegation of unequal profit distributions.
9Lamru lodged an appeal against the liquidator's partial rejection of its proof of debt and at the same time commenced separate proceedings against Kation, Mr Peter Lewis and Mr Mark Lewis in respect of the matters that had been raised in the proof of debt.
10Both proceedings came before Hamilton J. His Honour ordered that Lamru prepared a consolidated points of claim. The issues raised by an amended version of that claim were heard by his Honour over a lengthy period of time. His Honour delivered his principal judgment on 29 November 2004.
11One of the matters that it was necessary for Hamilton J to determine in the proceedings was the correct calculation of distributable income for the Trust in each financial year. One issue relevant to that question was whether Kation and Lamru had adopted two "accounting conventions" relating to the way in which certain items were to be dealt with in the accounts of Nortex (or the Trust) and, if so, whether those conventions were inconsistent with the trust deed governing the Trust. One of those conventions - referred to by the parties in the hearing before Hamilton J as the "differential interest convention" - turned on whether Kation and Lamru had reached an agreement in terms of the one in contention in these proceedings. On that issue, Hamilton J said (see Lewis v Nortex Pty Ltd (In Liq) [2004] NSWSC 1143 at [61]):
The "differential interest convention" flowed from an agreement that any money lent by the unit holders to the trust should be lent at interest. This convention was to deal with the situation where the amounts lent by the unit holders were unequal, which was virtually always the case. Rather than the unit holders charging and the trust paying this interest, the agreement constituting the convention was that the interest differential, ie, the difference between the amounts payable to the unit holders respectively, should be regarded as a debt payable between the unit holders directly. This was usually discharged by an adjustment of the amounts respectively credited to them as their shares of the free net income when determined.
Later, at [73], Hamilton J said:
Lastly, I should record a finding as to who were the parties to the agreements. First of all, the Lewis interests submitted that any agreements that there were (and they seemed to concede, as they had to, that they existed) were between only Kation and Lamru. Bearing in mind that the directors of Nortex were Lewis and Lamb and the unit holders Kation and Lamru, it should be taken that the agreement was a tripartite one, the consideration for the agreements among all three parties being the entry of the others into the agreements. In my view, Lewis and Lamb should be taken to have acted as directors of Nortex, as well as directors of their respective companies, in entering into the conventions. I find that Nortex was also a party to the agreements. But that matters little. Even if the conventions were agreements between Lamru and Kation only, those companies as unit holders agreed to direct, and did direct, the trustee to act in the way that it did. The result of that direction (Lamru and Kation being all the unit holders of the trust) was that there was no breach of trust, or certainly no breach of trust which could be relied on, in the trustee acting in the way it did. Agreements to which Lamru and Kation were parties, which there undoubtedly were, would be sufficient to ensure that result.
Finally, his Honour dealt with the question when the two conventions in issue came to an end. On that issue, his Honour concluded that there was no basis for finding that the conventions had terminated: see [2004] NSWSC 1143 at [74]-[75].
12In a later judgment (Lewis v Nortex Pty Ltd (In Liq) [2006] NSWSC 480), Hamilton J went on to make findings in relation to the precise amount of each of Kation's and Lamru's loan account balances as at the date of liquidation. Having made those findings, his Honour made the following declaration:
(7) Declare that as a result of the foregoing declarations and orders the balances of the loan accounts with Nortex of Lamru and Kation respectively as at the date of the commencement of the winding up of Nortex (2 September 1997) should stand at:
Lamru - $1,149,745.62
Kation - $679,579.55
13There was an appeal from Hamilton J's judgment: Kation Pty Ltd v Lamru Pty Ltd (2009) 257 ALR 336; [2009] NSWCA 145. Although the Court of Appeal varied the orders made by Hamilton J in some respects, it left untouched the findings his Honour had made in relation to the differential interest convention: see [2009] NSWCA 145 at [141]-[142]. In a supplementary judgment (Kation Pty Ltd v Lamru Pty Ltd (No 2) [2009] NSWCA 428), the Court of Appeal varied the declaration made by Hamilton J in respect of the loan account balances: see [2009] NSWCA 428 at [30]ff.
14Following the decisions of the Court of Appeal, the court on 23 July 2010 made consolidated orders in terms of those made by Hamilton J as varied by the Court of Appeal. Relevantly, those orders provided:
(2) In relation to the issues concerning the agreements referred to in the proceedings as the add-backs convention and the differential interest convention ("the conventions"):
(a) DECLARE that the implementation of the conventions did not constitute a breach or breaches of trust;
(b) DECLARE that the conventions continue in operation and have not ceased to have effect;
...
(7)DECLARE that as a result of the foregoing declarations and orders the balances of the loan accounts with Nortex of Lamru and Kation respectively as at the date of the commencement of the winding up of Nortex (2 September 1997) should stand at:
Lamru - $1,197,673
Kation - $631,651.
15In these proceedings, Lamru relies on the findings made by Hamilton J and the declarations made by the court as creating issue estoppels in relation to the existence and terms of the agreement on which it sues. In addition, Mr Lamb swore an affidavit setting out in detail the conversation he said he had with Mr Lewis in 1990, when he was negotiating to acquire a 40 percent interest in the Trust, concerning the agreement in relation to the loan accounts. That evidence was in these terms:
Lewis said: We treat everything in the same way. Profits are split in proportion to ownership. Cash sales are split in the same proportion. Any private type items like salaries and motor expenses are treated as advances against our profit shares. It is only fair that we maintain loan accounts with Nortex in the same in proportion [sic] as our ownership. Any over or under lending is effectively a loan between the unit-holders so we agree an interest adjustment for the difference.
According to Mr Lamb, after Mr Lewis produced a document, the conversation continued:
Lewis said: In order to adjust for the over or under lending by the unit holders to Nortex, we calculate the average balance of the loan accounts for the year. Once these are agreed between us, we calculate the difference to see who has effectively been lending money to the other unit holder. By agreement, we make an interest adjustment between us. In this case Dufty and I agreed to round off to $10,000.
I said: OK, that seems fair.
16Later, at some time around 1991, Mr Lamb said that he and Mr Lewis had a discussion in words to the following effect:
Lewis said: As Nortex banks with the Commonwealth Bank, we use the Commonwealth Home loan rate to adjust between the unit holders for the over or under lending to Nortex.
I said: That seems reasonable. I agree.
17Mr Lewis did not give evidence. Mr Lamb was cross examined. However, it was not put to him that his account of the conversations he had with Mr Lewis concerning the agreement was incorrect. It was suggested to Mr Lamb that the adjustments made in accordance with the agreement were dealt with by adjustments to the loan account. Mr Lamb agreed that that was so in 1991 to 1994, but he said nothing about later years and he was not pressed on the issue.
18Having regard to the fact that Mr Lewis did not give evidence and that Mr Lamb was not cross-examined on his evidence of the conversations, I accept the evidence given by Mr Lamb concerning the agreement in relation to the loan accounts. In any event, an issue estoppel exists in relation to that issue arising from the findings of Hamilton J.