Earlier in the day, Chilean copper producer Codelco and miner Southern Copper (NYSE: SCCO - news ) saw some spread tightening, with their 2044s and 2042s quoted at 245bp and 370bp, respectively.
What is the relationship between 'Codelco' and 'copper' in the context of the input sentence.
Options: product/material produced, position held, developer, director/manager