In the case of Spreckels Sugar Refining Company v. McClain in 1903, the U.S Supreme Court ruled on a dispute involving import duties on sugar. The Spreckels Sugar Refining Company imported raw sugar from Hawaii and argued that it should be exempted from paying import duties under an act passed by Congress in 1890 which allowed for duty-free imports of certain goods from countries with reciprocal trade agreements. However, the Collector of Customs at New York port disagreed and imposed a duty charge on the company's imported sugar. The court held that although there was indeed a reciprocity treaty between Hawaii and United States when Congress enacted its law in 1890, this agreement had been superseded by subsequent legislation admitting Hawaii as a territory of United States in 1900. This new status meant that products originating from Hawaii were no longer considered foreign goods subject to import duties but domestic ones instead. Therefore, while acknowledging that changes to laws can sometimes lead to confusion or unintended consequences, Justice Edward Douglass White writing for majority concluded that since Hawaiian sugars were now classified as domestic produce they could not benefit any longer from exemptions originally designed for foreign goods under reciprocal trade treaties.

The dissenting opinion in the case of Spreckels Sugar Refining Company v. McClain argued that the majority's decision to uphold a tax on raw sugar imports was incorrect and inconsistent with previous rulings. The dissenting justices believed that this tax, which was imposed as part of an agreement between the United States and Hawaii prior to its annexation, should not be considered constitutional under U.S law because it violated principles of uniformity in taxation. They contended that once Hawaii became a territory of the U.S., all pre-existing agreements were superseded by federal law, including those related to taxation. Therefore, they concluded that imposing such taxes on goods from Hawaii amounted to discrimination against one state or territory over others – something expressly forbidden by the Constitution.