We have an exclusive arrangement with AECL: we buy isotopes exclusively from AECL as our primary source of supply, and they sell isotopes exclusively to MDS Nordion. That arrangement under our current agreement is from the NRU reactor. The contract also requires AECL to provide isotopes to us for 40 years from the MAPLE dedicated isotope facility .
Our current arrangement is an interim arrangement, designed to serve until the MAPLE reactors were brought online. This contract also allows us, during times of planned or even unplanned reactor outage, to secure isotopes from other partners that we have around the world.