The law governing the arbitration agreement (i.e. the arbitration clause in a contract) potentially covers matters such as the existence, legality, interpretation, termination, and the identities of the parties to the arbitration clause. It is very common to not see any express provision on the law governing the arbitration clause. Contracting parties commonly make the assumption that the governing law of the contract will be the same law governing the arbitration clause.
(1) Governing law of the contract could be a strong indication of the governing law of the arbitration clause
The English Court of Appeal decision in Sulamérica CIA Nacional de Suguros SA and others v Enesa Engenharia SA and others  1 Lloyd’s Rep 671. In essence, the English Court of Appeal set out a three-stage enquiry in determining the law governing an arbitration agreement. (1) The express choice; (2) The implied choice in the absence of such an express choice; and (3) Where the parties had not made any choice, the proper law would be the law which the arbitration agreement has its closest and most real connection with. In particular for stage (2), the English Court of Appeal held that an express choice of law governing the substantive contract is a “strong indication of the parties’ intention in relation to the agreement to arbitrate.” On the specific facts of SulAmerica, the Court of Appeal agreed that the arbitration clause should be governed by the law of the seat (English law) and not the governing law of the contract (Brazil law). Nonetheless, the SulAmerica approach creates a rebuttable presumption that an express choice of law to govern the substantive contract would also apply to the arbitration clause. There have been English decisions that have since followed the SulAmerica approach.
(2) Or should the law of the seat of the arbitration be the governing law of the arbitration clause?
FirstLink Investments Corp Ltd v GT Payment Pte Ltd and others  SGHCR 12 departs from the SulAmerica approach in treating substantive law in the main contract being a strong indication of the parties’ intention to have that same substantive law be the law governing the arbitration clause. The case of Firstlink instead argues that, the natural inference ought to be that the law of the seat of arbitration should be the law governing the arbitration clause. This is because when commercial relationships break down and there is dispute resolution, the parties’ desire for neutrality comes to the fore. The law governing the performance of contractual obligations prior to the breakdown takes a backseat and primacy should be accorded to the neutral law selected by parties to govern the proceedings of dispute resolution.
In Malaysia, the High Court in Government of the Lao People’s Democratic Republic v Thai-Lao Lignite Co Ltd  3 MLJ 409, it was held that the law governing the arbitration clause should be the law of the seat of the arbitration (see  to ). On appeal, the Court of Appeal upheld the High Court decision but the Grounds of Judgment did not delve into the issue on the law governing the arbitration clause. This case is now pending an application for leave to appeal to the Federal Court.
The case of Thai-Lao Lignite demonstrates the significance of the law applicable to the arbitration clause. One of the contentions in the High Court for the setting aside of the award (as seen in the reported decision) was that Malaysian law should apply to the arbitration clause (as that is where the seat of arbitration is stipulated). From that, it would follow that the ‘party’ to the arbitration clause must be a signatory to the main agreement itself in order to be a party to the arbitration agreement. However, if the governing law of the main agreement (New York law) were to apply to the arbitration clause, under New York law, the concept of an “intended third party beneficiary” would be deemed to be a party to the arbitration agreement. Hence, a non-signatory to the main agreement but one which is an intended third party beneficiary, could rely on the arbitration clause and could be one of the claimants to initiate arbitral proceedings (just like in the facts of Thai-Lao Lignite. However, by applying Malaysian law to the arbitration clause, the High Court held that this was one of the grounds for setting aside the award. The Judicial Commissioner held that the arbitral tribunal had exceeded its jurisdiction by allowing a non-signatory and essentially, a non-party to claim in the arbitral proceedings.
(3) Takeaway Point: Expressly Provide for the Law Governing the Arbitration Clause
It is therefore best to expressly provide for the law governing the arbitration clause to negate any uncertainty. It will just require the simple provision such as “The law of this arbitration clause shall be [state the law e.g. the law of Malaysia]”