(a) An arbitration or conciliation agreement is international if:
(1) the places of business of the parties to the agreement are located in different states when the agreement is concluded;
(2) any of the following places is located outside any state in which a party has a place of business:
(A) the place of arbitration or conciliation determined under the arbitration or conciliation agreement;
(B) a place where a substantial part of the obligations of the commercial relationship is to be performed; or
(C) the place with which the subject matter of the dispute is most closely connected;
(3) each party has expressly agreed that the subject matter of the arbitration or conciliation agreement relates to commercial interests in more than one state; or
(4) the arbitration or conciliation agreement arises out of a legal relationship that has another reasonable relation with more than one state.
(b) Subsection (a)(4) applies without regard to whether the legal relationship is contractual.

(c) For purposes of this section, the place of business of a party who has more than one place of business is the place that has the closest relationship to the arbitration or conciliation agreement. If a party does not have a place of business, the party’s place of business is the party’s habitual residence.
(d) For purposes of this section, the states of the United States and the District of Columbia are one state.