However, one must never forget that the primary exercise is to construe the words used by the parties in the context of the whole of the document with which one is concerned.
10 Each party argued from the principle against inconvenient interpretation. The plaintiff argued that the freezing of the financial obligations as between the vendor and purchaser would make sense. The clause under consideration was to provide a considerable portion of what the vendors were to obtain as consideration for the sale of their tenements. It would be improbable and inconvenient that the parties to an agreement would intend a calculation of the royalties that would vary over the years and perhaps from year to year. They would not willingly subject themselves to the basis of royalty being changed by the unforeseeable act of a third party, ie, legislation changing the content of the concept of taxable income.
11 The defendant argued that the inconvenience arising from a static interpretation outweighs the factors relating to uncertainty. It must have been recognised in 1968 that a 1968 criterion would be of declining relevance as the years went by. It must always have been apparent to the parties that, if a mining operation were commenced, the agreement would last for the life of the mine. The operation of the agreement would not be static in any event. The parties would have been aware that there were ongoing developments both technical and commercial that might affect a mining operation. It would be commercially nonsensical to have the contents of the royalties dependent on the 1968 environment. If the interpretation were static, the decisions and ATO rulings bearing on the quantum of taxable income would recede into the past as the ITAA was changed to respond to changing circumstances. Furthermore, it would be inconvenient for the purchaser to be compelled to go on producing a separate set of accounts or calculations based on antiquated tax principles.
12 In this case the principle that one must look at the precise words used in the agreement are of importance. The plaintiff points to the use of "from time to time" in connexion with the operation of law, both statutory and generally. If this usage were consistent it would, indeed, be of importance. However, the usage is not consistent. In clause 26 the language refers to "the Mining Acts of 1962 as amended", but refers to regulations, proclamations or declarations under them "as amended from time to time". The plaintiff says that "from time to time" at the end of the clause governs "as amended" after both the reference to the Acts and the reference to the regulations, etc. But I do not think that this is so, in view of the use of the separate expressions "as amended" and "as amended from time to time" after the Acts and the regulations, etc, respectively. It would be ridiculous if clause 26 were taken to refer to the Acts in a static fashion but to the regulations, etc, in an ambulatory way. This, to me, indicates that "as amended" and "as amended from time to time" are used indifferently in the language of this agreement and the significance argued for by the plaintiff cannot be attributed to their omission in clause 14(c). This is of some importance in deriving the intention of the parties to the agreement.
13 Despite the dicta in the authorities cited above, I do not think it is established that there is any presumption, or any strong or well established presumption, that a statute by reference to which substantive rights are defined in an agreement is to be taken as frozen at the date of the agreement. It may be better established by those authorities that in the case of procedural provisions an ambulatory interpretation is likely. But I prefer the view of Slade LJ in Brett supra that there is no presumption either way.
14 Had the parties to the agreement intended to render the references to the ITAA static, they could easily have done so by reference to the ITAA 1936 - 1968 (a form of citation then available, although abolished by the Acts Citation Act 1976 (Cth)) or by the use of the expression "as amended to the date of this agreement". The plaintiff's argument that the parties should be taken to have intended to fix their substantive rights so as to be constant is not without some force, but the defendant's argument of the inconvenience of adherence to a tax regime receding into the past and the ongoing necessity of separate accounting calculations is also of force. I bear in mind, though, that to parties in commerce "taxable income" is always an inconstant concept, changing in some fashion, or at least liable to change, virtually year by year. Yet it is by reference to that expression that the parties to the agreement chose to define their rights, though it must have been clear that the agreement had the potential for operation for years or decades into the future.
15 Though the matter is not without some difficulty, it is my view, looking at the whole of the terms of the agreement in the light of its potential long term operation, that the parties to it are to be taken as referring in clause 14(c) to the ITAA as amended from time to time.
16 Arguments have been put to me as to the form of the declaration which should be made. I am prepared to make the orders sought in prayers 1 and 2 of the further amended summons, which the parties deem useful and consent to, although there is no real dispute as to these matters. As is apparent, there is a real dispute as to the declaration sought by prayer 3. The plaintiff presses me to make the declarations in ample form that embody the full context of the clause. The defendant argues that this creates the risk of a gloss on the agreement. The argument as to the ambit of "as amended" was the only real dispute which the Court was asked do determine. Where there is lack of agreement as to the form which the declaration should take, the declaration should be limited to determination of the actual dispute before the Court and should avoid the risk of placing any gloss on the terms of the agreement as to which no argument took place.
17 Short minutes should be brought in to embody the decisions that I have come to. The plaintiff must bear the defendant's costs of the proceedings to date.
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