An Investment of an Investor referred to in Article 1(7)(a)(ii), of a Contracting Party which is not party to an EIA or a member of a free-trade area or a customs union, shall be entitled to treatment accorded under such EIA, free-trade area or customs union, provided that the Investment:
(a) has its registered office, central administration or principal place of business in the Area of a party to that EIA or member of that free-trade area or customs union; or
(b) in case it only has its registered office in that Area, has an effective and continuous link with the economy of one of the parties to that EIA or member of that free-trade area or customs union.