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  WTO Panel Finds Tax 
Discriminatory and Contrary to WTO Rules
 WASHINGTON  
– U.S. Trade Representative Rob Portman applauded a World Trade 
Organization (WTO) panel decision issued today siding with the 
United 
States in its case against 
Mexico’s beverage tax.  Under the tax, soft drinks made with 
imported sweeteners, such as high-fructose corn syrup (HFCS) and beet sugar, are 
subject to a 20 percent tax on their sale and distribution.  Beverages made with Mexican cane sugar 
are tax-exempt.  The beverage tax 
resulted in an immediate drop in U.S. exports of HFCS to 
Mexico.  
As of 2004, U.S. exports of HFCS to 
Mexico remained at less than six percent of their 
pre-tax levels.  
 “This is an important win for our industry. 
The WTO panel could not have been clearer:  
Mexico’s beverage tax is discriminatory and 
contrary to WTO rules,” said Portman. 
“Mexico needs to eliminate this tax as soon as 
possible, and in doing so, I urge Mexico not to merely substitute one barrier to HFCS 
for another.  
Mexico must echo the 
United 
States’ commitment to free trade for all goods as 
the implementation of the final NAFTA duty reductions quickly approaches. We 
hope the recent announcement by Mexico to provide additional duty-free access for 
HFCS is a step in that direction.”
 The WTO panel report sided with the 
United 
States on all major issues in the dispute.  Specifically, the panel agreed that the 
beverage tax discriminates against U.S. products because it taxes the distribution 
and sale of beverages that use HFCS and beet sugar but does not tax beverages 
that use Mexican cane sugar.  The 
panel concluded that such discrimination is contrary to WTO rules – in 
particular, those rules that prohibit higher taxes on, and require no less 
favorable treatment for, imported products as compared to directly competitive 
or like domestic products.  The 
panel’s findings cover both beverages and the sweeteners HFCS and beet 
sugar.
 The WTO panel also agreed with the 
United 
States that several bookkeeping and reporting 
requirements associated with collection of the beverage tax afford less 
favorable treatment to HFCS and beet sugar as compared to Mexican cane sugar and 
are, therefore, also contrary to WTO rules.
 In the course of the dispute, the WTO panel 
rejected Mexico’s request for it to decline jurisdiction in 
favor of a North American Free Trade Agreement (NAFTA) dispute settlement panel. 
The panel concluded that WTO panels may not decline to exercise jurisdiction 
over disputes properly brought before them.  The panel also rejected 
Mexico's defense that, although discriminatory, its 
beverage tax is nonetheless justified as necessary to secure compliance with 
what, in Mexico's view, are 
U.S. obligations under the NAFTA.  As the 
United 
States explained before the WTO panel, although it 
shares Mexico’s desire to resolve differences over 
sweeteners, WTO dispute settlement is not the appropriate forum to resolve a 
disagreement under the NAFTA.  The 
United 
States did, however, reiterate its commitment to a 
negotiated solution to the NAFTA sweeteners dispute and continues to work hard 
to achieve that. 
 Background
 Mexico imposed the beverage tax on January 
1, 2002.  The beverage tax levies a 20 percent tax 
on soft drinks and other beverages, as well as on syrups and other products that 
can be diluted to produce soft drinks and other beverages (“soft drinks and 
syrups”). The beverage tax further imposes a 20 percent tax on services used to 
transfer soft drinks and syrups (e.g., distribution services).   In addition, the beverage tax 
subjects taxed products to several bookkeeping and reporting requirements.  The beverage tax only applies to soft 
drinks and syrups that use any sweetener other than cane sugar, such as HFCS or 
beet sugar.  Soft drinks and syrups 
sweetened exclusively with cane sugar are tax-exempt.  
 In 
Mexico, cane sugar is almost exclusively a domestic 
product, whereas before the tax, HFCS accounted for 99 percent of 
Mexico’s sweetener imports.  Thus, by taxing soft drinks and syrups 
made with HFCS, but not those made with cane sugar, 
Mexico imposed a tax designed to discriminate 
against imports. 
 The beverage tax had an immediate effect on 
HFCS.  Prior to its imposition, soft 
drink bottlers were the principal consumers of HFCS in 
Mexico and were increasingly substituting HFCS as a 
cost-effective alternative to cane sugar.  
The beverage tax reversed this trend as application of the beverage tax 
made the use of HFCS in soft drinks and syrups cost-prohibitive. 
 At the request of the 
United 
States, the WTO established the panel on 
July 6, 2004.  
Before the WTO panel, the United 
States claimed that the beverage tax is 
inconsistent with Mexico’s WTO obligations under Articles III:2 and 
III:4 of the General Agreement on Tariffs and Trade 1994.  The 
United 
States challenged the tax as applied on soft drinks 
and syrups, as well as on HFCS and beet sugar used to make soft drinks and 
syrups.  The panel found in favor of 
the United 
States on all counts, including rejecting 
Mexico’s defense that the beverage tax is justified 
as necessary to secure compliance with the NAFTA.
 The NAFTA calls for duties that remain on a 
handful of products, including sugar, to be eliminated by 2008. 
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