7581
U.S. premiums added to LME official cash settlement price , except for copper , which is added to the COMEX spot month .
 LME, COMEX, U.S.
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 LME, COMEX, U.S.