88Consequently, Article 13(2) of the basic regulation must be interpreted as meaning that an assembly operation in the Community or in a non-member country is to be regarded as circumventing the measures in force where, as well as satisfying the other conditions referred to in that provision, the parts constituting 60% or more of the total value of the parts of the assembled product are from countries subject to the measures, unless the trader concerned provides the Community institutions with proof that those parts originated in another country.