I le aso 9 o Mati, 2020, le American Aluminum Association Common Alloy Aluminum Sheet Working Group ma kamupani e aofia ai, Aleris Rolled Products Inc., Arconic Inc., Constellium Rolled Products Ravenswood LLC, JWAluminum Company, Novelis Corporation ma Texarkana Aluminum, Inc. tuuina atu i le US Department of Commerce ma le US International Trade Commission mo Bahrain, Pasila, Croatia, Aikupito, Siamani, Eleni, Initia, Initonesia, Italia, Korea i Saute, Oman, Romania, Serbia, Slovenia, Aferika i Saute, Sepania, Taiwan Saina ma Turkey. Talosaga mo su'esu'ega e tetee atu i le lafoa'i ma le fa'asaoina o le pepa alumini masani.

I le taimi nei, ua amata le su'esu'ega a le Komisi o Fefa'ataua'iga Fa'avaomalo a le US, ma o le a filifili le Matagaluega o Pisinisi a le US pe faila se mataupu i totonu o le 20 aso.