What about zero-nicotine e-liquid(s)?

According to the South African Health Organization's guidelines, tobacco products are defined as "any product made or derived from tobacco," and this definition also extends to encompass "any component, part, or accessory," including electronic cigarettes and electronic nicotine delivery systems (ENDS). In simpler terms, if a zero-nicotine e-liquid can be used in any product classified as a tobacco product by the South African Health Organization, it is also classified as a tobacco product, subject to all associated regulations and restrictions.