John R Keith Pty Ltd v Multiplex Constructions (NSW) Pty Ltd

The case of John R Keith Pty Ltd v Multiplex Constructions (NSW) Pty Ltd concerned the formation of a contract for the design and construction of hydraulics services for the Stadium Australia project. The plaintiff, John R Keith Pty Ltd, was invited by the defendant, Multiplex Constructions (NSW) Pty Ltd, to tender for the project. The tender documents included a standard subcontract agreement, which the plaintiff used as a basis for its tender proposal. The plaintiff submitted a series of revised proposals, and after being notified as the preferred tenderer, it commenced work. However, no formal signed agreement was entered into by the parties. The central issue in the case was whether a binding and enforceable subcontract was formed between the plaintiff and the defendant during the ongoing negotiations, and if so, whether the arbitration clause in the subcontract required the proceedings to be stayed.

The court examined the nature of the negotiations and the intention of the parties to determine if a binding contract was formed. The court considered the Masters v Cameron classes and the classical theory of contract formation, which focuses on the objective determination of the parties' intentions. The court also evaluated the relevance of prior negotiations and subsequent conduct, as well as the admissibility of post-contractual conduct in determining the existence of a contract. The court held that the parties had reached a consensus capable of forming a contract and that the subsequent negotiations over the terms of the subcontract did not negate the existence of a binding agreement. The court found that the alternative proposal put forth by the plaintiff did not constitute an abandonment of the terms of the original subcontract.

Ultimately, the court held that a binding and enforceable subcontract was formed between the plaintiff and the defendant. The court determined that the arbitration clause in the subcontract required the proceedings to be stayed pursuant to section 53(1) of the Commercial Arbitration Act 1984 (NSW). The court's decision was based on the objective determination of the parties' intentions and the consensus reached during the negotiations. The court also considered the relevance of the prior negotiations and subsequent conduct in determining the existence of a binding agreement. The court's decision resulted in the stay of the proceedings and the referral of the dispute to arbitration in accordance with the terms of the subcontract.