who does the united states export the most to?
Canada
neutral
 Beginning in 1994 , the U.S. entered into the North American Free Trade Agreement ( NAFTA ) , linking 450 million people producing $ 17 trillion worth of goods and services . The goal of the agreement was to eliminate trade and investment barriers among the U.S. , Canada , and Mexico by January 1 , 2008 ; trade among the partners has soared since the agreement went into force . 

entailment
 The U.S. , potentially the largest market for Brazilian ethanol imports , currently imposes a tariff on Brazilian ethanol of US $ 0 @.@ 54 per gallon in order to encourage domestic ethanol production and protect the budding ethanol industry in the United States . Historically , this tariff was intended to offset the 45 cent per gallon blender 's federal tax credit that is applied to ethanol no matter its country of origin . Exports of Brazilian ethanol to the U.S. reached a total of US $ 1 billion in 2006 , an increase of 1 @,@ 020 % over 2005 ( US $ 98 millions ) , but fell significantly in 2007 due to sharp increases in American ethanol production from corn . As shown in the table , the United States remains the largest single importer of Brazilian ethanol exports , though collectively the European Union and the CBI countries now import a similar amount . 

neutral
 U.S. sales 

neutral
 U.S. sales 

entailment
 Total import volume rose by 189 % from $ 13 @.@ 7 billion in 2000 to $ 39 @.@ 7 billion in 2005 and $ 55 @.@ 189 billion in 2009 . Iran 's major commercial partners are China , India , Germany , South Korea , Japan , France , Russia and Italy . From 1950 until 1978 , the United States was Iran 's foremost economic and military partner , playing a major role in infrastructure and industry modernization . It is reported that around 80 % of machinery and equipment in Iran is of German origin . 
