South Africa Exports of sulfates, alums, peroxosulfates (persulfates) to Swaziland was US$303.51 Thousand during 2022, according to the United Nations COMTRADE database on international trade. South Africa Exports of sulfates, alums, peroxosulfates (persulfates) to Swaziland - data, historical chart and statistics - was last updated on May of 2024.