A Multiobjective Optimization Model of Production-Sourcing for Sustainable Supply Chain with Consideration of Social, Environmental, and Economic Factors

Table 4

Material prices for iron ore and coking coal (𝐶^𝑟_𝑖).

Price in $/ton	India	Brazil	Australia	USA	Canada
Iron ore	120	130	140	n/a*	n/a*
Coking coal	n/a*	n/a*	130	140	150

*Note: only the biggest exporting nations are taken into consideration.