An arbitration clause contained in an original agreement automatically extends to subsequent supplementary or amending acts where the latter, although not expressly reproducing the arbitration clause, contain a general reference to the terms of the principal contract and constitute, in substance, a continuation of the same contractual relationship rather than an autonomous and novatory contract.
With regard to challenges to arbitral awards, an issue concerning the erroneous assessment of evidence relating to the occurrence of a contractual condition is inadmissible pursuant to Article 829 of the Code of Civil Procedure where it was not specifically raised in the arbitral proceedings, constituting a new issue excluded from the scrutiny of the Court of Appeal on challenge.
The five-year limitation period provided for by Article 2948, paragraph 4, of the Civil Code for interest does not apply to default interest arising from delay in payment of contractual consideration where the obligation does not have the character of periodicity, in which case the ordinary ten-year limitation period applies.