FACTS
63 No ground of appeal challenged the findings of fact by the trial judge. What follows is a summary of the facts set out in paragraphs [2] to [81] of his Honour's reasons for decision.
64 AXA Health, a wholly owned subsidiary of AXA, inter alia, operated a profitable health insurance business trading as "HBA" in Victoria and "Mutual Community" in South Australia. By the end of 2000, a committee established to conduct a strategic review of AXA's health insurance business determined that AXA Health's position was unsustainable in the long term. A number of courses open to AXA were considered, including the acquisition of another health insurance business or businesses (Medical Benefits Fund of Australia Ltd (MBF), Medibank Private or the acquisition of a combination of smaller health insurers), a strategic alliance with MBF or, if none of those proved viable, the divestment of AXA Health. The committee's chairman (Mr Les Owen, AXA's Group Chief Executive (Mr Owen)) concluded the most propitious options were a merger with MBF or the sale of the existing business to MBF.
65 In early 2001, AXA engaged MBL (through its advisory arm (MBL Advisory)) to assist it in an approach to MBF. Despite negotiations in the first half of 2001 between AXA and MBF about the possible merger of MBF with the business of AXA Health, the negotiations had concluded unsuccessfully by July 2001.
66 On 27 July 2001 and again on 13 August 2001, MBF made "an indicative proposal" to AXA to acquire AXA Health. On 13 August, the headline price was increased to $535 million. Under both proposals, the sum to be paid at settlement was $250 million with the balance to be paid by way of vendor finance. AXA's board considered the proposal on 29 August 2001. MBF's offer was significantly below AXA's valuation of AXA Health of $675 million comprising a "stand alone" valuation of $570 million and an "agreed synergies" valuation of $105 million. The AXA board were told that the tax effects (a capital gains tax liability of approximately $140 million and revenue loss trade offs) would impact on the net proceeds. The board resolved to give MBF a short period of exclusivity it had requested (subject to appropriate milestones) to move the parties toward a satisfactory price and funding structure.
67 At about the same time, MBL Advisory was assisting AXA to locate other domestic and foreign sources of interest in AXA Health including meeting with representatives of British United Provident Insurance Ltd (BUPA) of the United Kingdom. Ms Marianne Birch, a Division Director with MBL Advisory (Ms Birch), was one of the group who met with BUPA. MBL Advisory ultimately concluded that there was little or no domestic or foreign interest in the acquisition of AXA Health. By October 2001, MBL Advisory was investigating two further options - an initial public offering (IPO) and a leveraged buy out (LBO) of AXA Health. The prospect of an LBO had been raised by Ms Susan Foster, AXA's Strategic Projects Manager (Ms Foster). MBL Advisory contacted another arm of MBL to assist - the Principal Transactions Group (MBL PTG). Mr Richard Facioni, an Executive Director of MBL (Mr Facioni), was the head of MBL PTG.
68 On 21 November 2001, MBL PTG made a presentation to AXA. Mr Owen, Ms Foster and Mr Andrew Penn, AXA's General Manager of Operations (Mr Penn), attended. (Mr Penn was the executive with overall responsibility of disposing of AXA Health on the most favourable terms). The LBO proposed by MBL PTG was that AXA Health be sold "into an unlisted, leveraged structure". A company would be established to acquire AXA Health in which MBL and other investors would hold the equity. Debt finance of $300 million would be obtained. The LBO proposal was to be conducted in parallel with a trade sale to MBF so that if AXA's negotiations with MBF succeeded, AXA Health could be on-sold from the MBL structure to MBF. (In fact, in the first week of November 2001, AXA and MBF were still seeking to effect a sale of AXA Health to MBF. Mr Owen of AXA granted MBF a further period of exclusivity until 31 December 2001).
69 The AXA board met on 30 November 2001. Mr Penn told the board that except for a sale to MBF, the prospects of disposing of AXA Health for a price in line with AXA's expectations were limited. The board resolved to continue discussions with MBF and progress investigations into the IPO and the LBO options to determine price and feasibility.
70 MBL PTG prepared a memorandum dated 7 December 2001 which proposed the creation of a new entity "BidCo" (BidCo) to acquire AXA Health. The memorandum also addressed, inter alia, the advantages and risks to MBL of such a transaction. Although the scrip-for-scrip exchange was not mentioned, the trial judge concluded that the evidence left "little doubt that at least someone in MBL PTG had it in mind to structure the transaction in such a way that capital gains tax would not be payable". On 9 December 2001, a form of the memorandum (in the same terms as the one prepared on 7 December 2001) was sent to the chief executive officer of MBL and to the head of the Investment Banking Group within MBL.
71 The AXA board met again on 20 December 2001. The board considered a paper (contributed to by MBL Advisory) which compared options for the disposal of AXA Health. The board endorsed a recommendation that AXA maintain a tough line with MBF and not to extend exclusivity beyond 31 December 2001 unless there was agreement on value and if not, then pursue the IPO / LBO without precluding ongoing discussions with MBF. A "Chinese wall" was in place between MBL Advisory and MBL PTG in relation to the disposal of AXA Health.
72 During January 2002, a number of events occurred. On 2 January 2002 (immediately after the exclusivity period provided to MBF had expired), MBL Advisory provided Mr Penn with a table setting out the net present value of the various options then potentially available for the sale of AXA Health. The tax payable by AXA was one of the economic implications. On 22 January 2002, MBL PTG prepared a confidential memorandum which identified the key steps in its proposal for an LBO of AXA Health. The memorandum again referred to the idea of MBL establishing BidCo, which would acquire AXA Health. The memorandum was the first documentary reference for the balance of the consideration (after the deposit) to be convertible shares in BidCo. BidCo ultimately became MHA.
73 On 16 January 2002, MBL Advisory met again with representatives of BUPA. Mr Owen was told of BUPA's interest. He authorised MBL Advisory to raise with BUPA the possibility of BUPA participating in the LBO proposed by MBL PTG, or of BUPA making a bid for the outright acquisition of AXA Health. BUPA told Ms Birch of MBL Advisory that BUPA could not finance an outright acquisition of AXA Health but was keen to participate in an LBO by contributing equity. Ms Birch told the BUPA representative that MBL Advisory could not deal with BUPA about equity participation in an LBO (because of the "Chinese wall") and gave the representative Mr Facioni's telephone number. Mr Facioni provided BUPA with a detailed briefing paper which, inter alia, summarised the financial position of AXA Health, the proposed structure for the LBO and provided that MBL would be retained to act as financial advisors to BidCo and would receive fees for financial advice and debt and equity arranging.
74 At the same time, AXA was still considering a sale of AXA Health to MBF. On 11 February 2002, Mr Penn advised Mr Owen his preference was for a direct sale to MBF rather than the LBO proposal. MBL PTG spent February preparing drafts of an "indicative bid" for AXA Health.
75 On 27 February 2002, AXA's board considered a paper prepared by Mr Owen. The paper informed the board that progress on both options (direct sale to MBF and the LBO) was continuing slowly and that AXA would continue with the strategy of working with both parties. The board minutes record that it appeared that the LBO team intended to realise the investment through a subsequent IPO and AXA would seek to ensure participation in any excess over the offer from the LBO team.
76 On 1 March 2002, MBL made a "non-binding" bid for AXA Health, described as an "unconditional underwriting". The bid's form was devised by MBL PTG and other groups in MBL, but not MBL Advisory. AXA had no input into the structure or form of the bid. Letters of support from third party investors were included in the bid. The bid contained, inter alia, provisions that:
1. MBL was not a strategic acquirer nor long term owner of AXA Health;
2. MBL would undertake the acquisition through a MBL special purpose company - MHA;
3. MBL would assume the risk of on-selling AXA Health either by on-sale to a private equity consortium or an IPO;
4. AXA was to receive a minimum price of $550 million plus up to a further $10 million if AXA Health was subsequently sold by way of an IPO within 12 months;
5. consideration of $550 million would be paid by a $65 million non-refundable deposit plus $485 million vendor financing in the form of converting vendor shares in AXA Health;
6. AXA would grant MBL a period of exclusivity during which time AXA would undertake not to enter into discussions with third parties in relation to a trade sale or IPO of AXA Health; and
7. an underwriting fee of $10 million plus stamp duty on share transfers would be payable by AXA to MBL.
77 On 8 March 2002, AXA responded to the bid. AXA gave, to adopt the words of the trial judge, "limited, provisional and somewhat cautious support to the MBL bid". AXA required a number of issues to be addressed (including that the voting and distribution entitlements of the vendor shares had to be increased) and proposed a number of other modifications (including a base price of $560 million and a requirement that AXA share, to the extent of 50%, in any profit made from the on-sale AXA Health under certain conditions).
78 After discussions between MBL and the proposed investors, on 16 April 2002 MBL submitted a revised non-binding bid for AXA Health. It followed the same general approach as the initial bid. The total price was increased to $560 million made up of $65 million cash deposit and convertible vendor shares to the value of $495 million, AXA was to be entitled to a share of 50% (reducing pro-rata to 30% over 12 months) of any profit made from any on-sale of AXA Health for more than $575 million (net of costs) within 12 months and, subject to negotiation, AXA would have 25% of the voting power at a general meeting of MHA and would have one seat on the board.
79 On 17 April 2002, the AXA board considered two options - the sale to MBF and MBL's non-binding bid. The scrip-for-scrip roll-over provisions in the MBL bid were discussed at this meeting. The board resolved that the MBL bid should be progressed to a heads of agreement and that MBF should be informed that although AXA would continue to negotiate with MBF, it was no longer the preferred buyer.
80 On 19 April 2002, AXA responded to the "key commercial issues" of MBL's revised bid. AXA's response included seeking to extend the profit share in the event of the IPO or trade sale to 18 months, and aggregating the underwriting fee and stamp duty at $10 million. Negotiations of the "key commercial issues" continued on 22, 24 and 26 April 2002.
81 On 29 April 2002, representatives from MBL Advisory (representing AXA), MBL PTG and BUPA met for the first and only time. The file note of the meeting records, inter alia,that AXA expressed concern that it would be "embarrassed by an on-sale through an IPO at a significant profit" and further questioned what benefit it would obtain from paying large fees to MBL to sell AXA Health to BUPA. The file note further recorded that AXA would seek "appropriate profit share terms" to address these concerns.
82 On the same day, 29 April 2002, AXA extended the period of exclusivity to MBL to 14 May 2002. As a result, AXA could negotiate with MBF but not with any other prospective acquirer, including BUPA. The concerns of AXA concerning BUPA's larger equity stake in the acquisition of AXA Health were again expressed in an email from Mr Owen on 7 May 2002, where he stated that AXA would "not be at all happy" if a trade sale to BUPA took place and that if BUPA were "changing their position in the whole business" that AXA should be talking with them directly. Mr Green responded on 8 May 2002. The issue was not addressed.
83 On 3 May 2002, AXA's solicitors produced a first draft of the heads of agreement. The parties to the agreement were to be AXA, MBL, MHA, and Macquarie Health Holdings Pty Ltd (MHH).
84 On 8 May 2002, Mr Bob Herbert of MBL sent an email to others within MBL attaching a draft transaction description of how AXA Health was to be acquired. The document described, in some detail, the proposed arrangement including aspects that had been negotiated with AXA and aspects that had been negotiated with BUPA. The document included a diagram that set out the "acquisition structure to facilitate a scrip-for-scrip bid for AXA Health", explaining the details of the companies and their relationship.
85 On the same day, 8 May 2002, Mr Herbert wrote another memorandum jointly with Mr Greg Pahek (an executive of MBL PTG) seeking approval for the establishment of three special purpose companies required to complete the acquisition of AXA Health. These companies were MHH, MHA and MHF. MHH was to have 100 ordinary shares of which 99 were to be held by MBL and one was to be held by BDW Nominees Pty Ltd (a special purpose company owned by MBL's legal advisors, Blake Dawson Waldron). MHA was to have 100 ordinary shares of which 99 were to be held by MBL and one was to be held by MHH. MHF was to be wholly owned by MHA. The memorandum included another diagram explaining the structure of the proposed acquisition. The companies were duly incorporated on 10 May 2002.
86 Between 10 and 20 May 2002, further draft heads of agreement were being prepared by AXA's solicitors. During this time, the agreement was renamed the "Underwriting Agreement". On 20 May 2002, a new warranty was inserted to be given by MBL that MHH would not be a wholly owned subsidiary of MBL. On 22 May 2002, MBL and BUPA Australia Pty Ltd (BAPL, the wholly owned subsidiary of BUPA) procured the incorporation of a company called MB Health Holdings Pty Ltd (MB Health). By 22 May 2002, the price being offered by MBL had risen to a total of $595 million, comprising of a deposit of $57.6 million and vendor shares in MHA of $537.4 million.
87 Meanwhile, AXA continued to deal with MBF as a possible (though not a preferred) buyer.
88 On 27 May 2002, Mr Facioni put the proposal for the acquisition of AXA Health (the Proposition Summary) to senior executives in MBL for approval. The Proposition Summary provided that the transaction would occur in four stages. The first stage was the establishment of the transaction entities MHF (described as "Fundco"), MHH, MHA and MB Health (described as "NewCo"), which had already occurred (see [85] and [86] above). The Proposition Summary provided that MB Health's role would be to acquire AXA Health either by the exercise of a put option by AXA to provide AXA with a "fallback" method of completing the sale of AXA Health, or, in the event that such an option was not exercised, by the acquisition of MHF from MHA. MB Health would also have the task of raising debt funding from the banks, the equity funding from MBL and BAPL, to fund the acquisition of AXA Health.
89 The second stage was the "announcement", which proposed that MBL would enter into a series of agreements which would "evidence the various parties' intentions in respect of AXA Health". These agreements were a binding conditional underwriting agreement with AXA, a binding equity participation agreement with BUPA and BAPL, two put options granted by BAPL to MBL, one call option granted by MBL to BAPL and credit-approved commitments from two named banks.
90 The third stage was described as "financial close" which described the execution of the sale documentation to acquire AXA Health and was divided into four categories, namely, capitalisation of the structure, the acquisition of AXA Health, the MBL sell-down, and banking arrangements.
91 The final stage was "completion" which described the procedures necessary to settle the sale. The Proposition Summary further outlined, inter alia, the transaction's risks and benefits to MBL. The Proposition Summary was approved by the executives subject to 14 conditions.
92 On 30 May 2002, MBL, BAPL, MB Health and BUPA entered into an "Equity Participation Agreement". By this agreement, MBL and BAPL agreed to establish a consortium to own and operate AXA Health, and that MB Health would be the vehicle through which this would occur. MBL and BAPL would each have a 50% interest in MB Health, to be adjusted by factors such as "any sell-down" by MBL under the agreement. Under the Equity Participation Agreement, BAPL granted MBL two put options and MBL granted BAPL one call option in respect of MBL's shares in MB Health.
93 On the same day, 30 May 2002, MBL forwarded its proposed offer for the sale of AXA Health to AXA. As the trial judge's reasons for decision explained:
[61] Also on 30 May 2002 (which was a Friday), MBL forwarded its "proposed offer" for the sale of AXA Health to [AXA], attaching agreements in executable form, in which it made its preparedness to execute those agreements conditional upon [AXA] confirming in writing, by 7.00 pm on Monday 3 June 2002, that it ([AXA]) had ceased discussions and negotiations with all other prospective bidders, including MBF. Indeed, MBL's letter of 30 May stated that, absent [AXA] indicating its intention to "proceed with [the] proposal" by 7.00 pm on 3 June, the proposal would be withdrawn. [AXA's] sub-committee met on the afternoon of 3 June 2002. It considered a further letter of that day from MBL which pointed out certain benefits which the MBL proposal involved for [AXA], and which extended the 7.00 pm deadline for acceptance to midnight. On the same day, Mr Owen wrote to Mr Conde indicating a preparedness to sign an agreement for the sale of AXA Health to MBF that day, so long as certain conditions could be met. Mr Owen spoke to Mr Conde by telephone on the evening of 3 June, in the course of which it became clear that [AXA] would be unable to conclude an agreement with MBF. Mr Owen so informed the sub-committee at about 9.15 pm. The sub-committee then decided that [AXA] should accept the offer from MBL.
[62] MBL was informed of that decision. Negotiations between [AXA] and MBL re-commenced at about 11.30 pm on 3 June 2002, an in-principle agreement was reached at about 9.00 am on 4 June 2002, the transaction documents were circulated for comment at about 1.00 pm, and the documents were executed at about 8.00 pm. The transaction documents so executed were the Underwriting Agreement, to which the parties were [AXA], MBL, MHA and MHH, and an "Equity Sell Down Agreement", to which the parties were [AXA], MBL and MHA.
94 The Underwriting Agreement provided that on the Completion Date (30 August 2002), AXA would exchange, and MHA would buy, the shares in AXA Health: cl 4.1 of the Underwriting Agreement. In exchange for the shares in AXA Health, MHA would pay $57.6 million in cash to AXA and MHA would issue to AXA 537.4 million shares with a value of $537.4 million, totalling $595 million: cl 4.2 of the Underwriting Agreement. This amount was later adjusted pursuant to the agreement to $570 million. The Underwriting Agreement further provided for a put option to be granted to AXA (cl 10(a), Sch 3) and for MBL and MHH to grant AXA a call option over their ordinary shares in MHA (cl 11, Sch 4). These options were only be exercised if the "vendor shares" (convertible ordinary shares in the capital of MHA) were converted and would expire if not exercised within two months of conversion or upon the exercise of the put option (whichever occurred first). The agreement further described the vendor shares, redeemable preference shares and the voting rights in MHA that the holder of the vendor shares would obtain. Finally, the Underwriting Agreement provided, inter alia, that AXA agreed to pay MBL an "underwriting fee" of $5 million on the Completion Date.
95 Also on 4 June 2002, AXA, MBL and MHA executed the Equity Sell Down Agreement. The agreement enabled AXA to participate in such profit that may be made by the on-sale of AXA Health, while at the same time allowing MBL a return on its investment. Under this agreement, AXA agreed to pay MBL an "equity sell-down fee" of $5 million in consideration for MBL procuring MHA to satisfy its obligations under the agreement.
96 Between 4 June 2002 and 30 August 2002, the parties engaged in "intense negotiations" and entered into a number of further agreements to complete the transaction. The trial judge described the period immediately prior to the Completion Date (30 August 2002) as follows:
[76] It seems that the last week before execution of the transaction documents was a very busy time for all concerned. On 25 August 2002, the parties on the BUPA side of MBL, as it were, executed a deed to amend the Equity Participation Agreement. In relation to MBL's shareholding in MB Health, BAPL granted to MBL a put option and MBL granted to BAPL a call option, the exercise of which in each case was tied to the exercise by [AXA] of its right to convert its vendor shares in MHA, the exercise by [AXA] of its put option over those shares, or the expiry of that put option, as the case required. On the same day, those parties executed a shareholders' deed to regulate the operation and governance of MB Health.
[77] On 26 August 2002 [AXA], MBL, MHA and MHH by deed amended the Underwriting Agreement. One of the amendments was to replace cl 4.1 with the following:
"4.1 Exchange of Shares
(a) The parties agree that on the Completion Date, AXA will exchange and MHA will buy the Shares for the Purchase Price free of Encumbrances and other third party rights.
(b) MHA may, on Completion, direct AXA to execute an instrument of transfer of the Shares to Newco or other nominee company.
(c) Where MHA gives a direction in accordance with clause 4.1(b), the duly executed instruments of transfer to be delivered by AXA on Completion must be in favour of Newco or other nominee company."
On the same day, [AXA], MBL, MHA and MHF by deed replaced the Equity Sell Down Agreement. At least to the extent relevant for present purposes, what I have written in para 74 may likewise be said about the deed of 26 August (save for the fact that "NewCo" had by then been interposed in the form of MHF, and was itself a party to the deed). On the same day, [AXA], MBL, MHA, MHH and The National Mutual Life Association of Australasia Limited executed the Covenant Agreement. It contained a range of provisions calculated to govern the parties' obligations in the intervening period while the commercial business of AXA Health was effectively under the control of MBL, but might (depending on how matters turned out) ultimately be returned to [AXA]. …
[78] On 29 August 2002, MHA and MHF entered into what was described as "MHA Undertaking". By it, MHA agreed to direct [AXA] to execute an instrument of transfer of its shares in AXA Health to MHF, and agreed to pay [AXA] the purchase price for those shares. MHA assigned to MHF certain benefits, or expected benefits, arising under detailed provisions of other instruments then executed or expected to be executed. The consideration passing from MHF to MHA was an agreement to issue to MHA, upon completion under the Underwriting Agreement, 240,000,000 ordinary shares in MHF (of a value, it seems, of $240m). MHF also agreed to pay to MHA, on the "settlement date", the sum of $330m, described as "deferred consideration". The "settlement date" was the earlier of two dates, one of which was the date specified by [AXA] for the conversion of its vendor shares in MHA in a notice of intention to convert (if one were given) in that behalf. As will appear, the combination of these sums ($240m and $330m) represented the agreed sale price of AXA Health ($570m).
[79] On 29 August 2002, MHA and MB Health executed an agreement called "Consortium Acquisition Agreement". A condition precedent to the operation of that agreement was that [AXA] was no longer able to exercise the put option granted to it by MB Health in relation to its vendor shares in MHA. The terms of the put option were such that, if [AXA] had given a notice to convert the vendor shares into ordinary shares, it could no longer be exercised. The effect of these provisions was, therefore, that the giving by [AXA] of a notice of conversion in relation to the vendor shares would bring the Consortium Acquisition Agreement into operation. Under that agreement, MHA agreed to sell and MB Health agreed to buy all of the issued share capital in MHF.
97 On 30 August 2002, completion of the transaction took place. MHA directed AXA to execute an instrument of transfer of its shares in AXA Health to MHF. The transfer occurred and MHA paid AXA the sum of $57 million in cash and issued 513 million $1 convertible preference shares to AXA. MBL and MHH granted to AXA call options over the ordinary shares held by them in MHA and MB Health granted to AXA a put option over the convertible vendor shares. AXA duly paid the underwriting fee of $5 million to MBL. MBL subscribed 57 million $1 redeemable preference shares in MHA and paid $57 million to MHA for that issue.
98 Finally, on 7 February 2003, AXA gave notice of the conversion of its vendor shares in MHA (effective on 28 February 2003), and further gave notice that it would exercise the call options granted by MBL and MHH. As explained by the trial judge:
[The conversion of AXA's vendor shares] triggered the operation of the consortium acquisition agreement as between MHA and MB Health and the "MHA Undertaking" as between MHA and MHF. MHA's shareholding in MHF was acquired by MB Health for the sum of $240m, and MHF paid MHA the "deferred consideration" which, after adjustment, amounted to $317.85m. In the result, MHA's only asset was cash in the sum of $557.85m. MHF, which owned all the shares in AXA Health, was in turn owned by MB Health.