Except with respect to any Claims under any Environmental Laws which are addressed exclusively in Section 4 11 , there is no Claim pending or, to the knowledge of VTDC, threatened against VTDC, Valero Port Arthur or any of their Affiliates or relating to any of their respective assets which, if adversely determined, would, individually or in the aggregate, have a Material Adverse Effect with respect to the Business or Valero Port Arthur, taken as a whole. To the knowledge of VTDC, the operations and business of Valero Port Arthur have been conducted by Valero Port Arthur in substantial compliance with all Applicable Laws except (a) as would not, individually or in the aggregate, have a Material Adverse Effect with respect to the Business or Valero Port Arthur, taken as a whole, and (b) with respect to Environmental Laws, which are addressed exclusively in Section 4.11 .