Supply chain interactions are complex in general and can be viewed as a networked enterprise .In this paper, we address information system interoperability for exploring and analysing the interoperation problem in heterogeneous networked enterprises systems. We propose a common shared ontology based framework for networked enterprises interoperability for the context of information flows in supply chain interactions. A supply chain ontology,SCOR ontology,is developed based on the SCOR operation reference model. Subsequently, by formalising the similar concepts of SCOR ontology and product ontology, ONTO-PDM, using Description Logic, we propose a product-centric supply chain ontology framework for facilitating the interoperation between all enterprise applications involved in an extended supply chain. A case study of a Supply Chain Make-to-Order process is used to demonstrate the feasibility of the approach.