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Related party transactions (Tables)

9 Months Ended

Sep. 30, 2016

Related Party Transactions [Abstract]

Schedule of related party transactions

A summary of the aforementioned significant related party transactions for the three and nine months ended September 30, 2016 and 2015 is as follows: 

	Three months ended September 30,							Nine months ended September 30,
	2016			2015				2016			2015
Net sales to Glencore	$	301,111		$	428,018			$	871,771		$	1,517,428
Purchases from Glencore	62,317			86,664				156,507			328,120
Purchases from BHH	2,568			13,515				7,666			41,768

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- Definition

Tabular disclosure of related party transactions. Examples of related party transactions include, but are not limited to, transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners and (d) affiliates.

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