The plan to create a customs union that included the Transvaal was also little to the taste of President Kruger's Hollander advisers as they were invested in the plans of the Netherlands Railway Company, who owned the railways of the Transvaal.
Planen om at skabe en toldunion som inkluderede Transvaal, faldt dessuden ikke præsident Krugers hollandske rådgivere i smag, siden de deltog i planerne til Hollands jernbaneselskab som ejede jernbanerne i Transvaal.