In the 1980s, Coca-Cola USA made the switch from sugar to high fructose corn syrup, where it's the predominant soda sweetener found in the country today. But many other parts of the world, including Europe and Latin America, still employ cane sugar in their soft drinks.
There are a couple of reasons for this. In many countries, raw cane sugar is still less expensive to use in beverage manufacturing since pricey machinery is required to manufacture the type of high fructose corn syrup included in American sodas.
In the United States, the prices for making and processing high fructose corn syrup are actually less expensive than the current price for raw cane sugar, due to government subsidies paid to corn farmers and steep tariffs that limit sugar imports. Thus, high fructose corn syrup in America actually costs less than half the price of cane sugar.
Source: Flickr User Plinkk