There appear to be 4 smelters in North America that handle Mo. Endako has its own, presumably on site. Only the Pennsylvanian smelter would appear to be  available for Sisson Brook but would have to ship concentrate by rail and/or sea through Saint John.

   If Endako has been able to support a smelter for 40 years on its own then Sisson Brook (and Adex's Mount Pleasant) should be able to support a more local smelter and reduce the transportation costs considerably.  Saint John is fast becoming the energy hub for eastern North America and could easily support a smelter. 

Molybdenum Refinery
Cyprus Molybdenum Co.
Ft. Madison IA

Sierrita Molybdenum Roasters
Phelps Dodge Sierrita Corp.
Green Valley AZ

Langeloth Molybdenum Roaster
Langeloth Metallurgical Co.
Langeloth PA

Endako Molybdenum Roaster
Placer Dome Canada Ltd.