Law and Sea
Formation of Contract
Formation of a time charterparty, same as a voyage charter, governed by the ordinary rules of the law of contract, i.e. there must be an offer and acceptance, then the parties must have agreed all the essential terms either in writing or verbally to make the contract binding.
Homburg Houtimport BV and others v Agrosin Private Ltd and another (The Starsin)  1 AC 715 per Lord Millet at paras 175-6:
175. The identity of the parties to a contract is fundamental. It is not simply a term or condition of the contract. It goes to the very existence of the contract itself. If it is uncertain, there is no contract. Like the nature and amount of the consideration and the intention to create legal relations it is a question of fact and may be established by evidence. Such evidence is admissible even where the contract is in writing, at least so long as it does not contradict its express terms, and possibly even where it does: see Young v Schuler (1883) 11 QBD 651 Chitty on Contracts 28th ed. p 633. But bills of lading are transferable documents of title, and the claimants are holders of the bills by endorsement. Consequently the evidence must be found within the four corners of the bills themselves.
176. Where a contract is contained in a signed and written document, the process of ascertaining the identity of the parties and the capacity in which they entered into the contract must begin with the signatures and any accompanying statement which describes the capacity in which the persons who appended their signatures did so. This may require interpretation, and to this extent the process may without inaccuracy be described as a process of construction. But it is not of the same order as the process of construing the detailed terms and conditions of the contract. These describe the incidents of the contract and the nature and extent of the parties' obligations to each other. But the identity of the parties themselves is not an incident of the contract. Where a signature is accompanied by a description of the capacity in which the signatory has appended his signature the description is not a term or condition of the contract. It is part of the signature and so part of the factual evidence of the identity of the party which is undertaking contractual liabilities under the contract.