(1) Disputes between a national or company of one Contracting Party and
the other Contracting Party concerning an obligation of the latter under
this Agreement in relation to an investment of the former which have not
been amicably settled shall, after a period of three months from written
notification to a claim, be submitted to international arbitration if the national or company concerned so wishes.

(2) Where the dispute is referred to international arbitration, the national
or company and the Contracting Party concerned in the dispute may
agree to refer the disput either to: