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Shares in gold miner Niugini Mining Ltd surged 38 cents to A$ 3.75 early on Friday following confirmation on Thursday from Battle Mountain Gold that it was considering acquiring the 49.6 percent of Niugini it did not already own .
 Niugini Mining Ltd, A$, Battle Mountain Gold, Niugini
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 Niugini Mining Ltd, A$, Battle Mountain Gold, Niugini