Ngomhlaka-9 Novemba, i-American Iron and Steel Association yamemezela ukuthi ngoSepthemba 2021, ukuthunyelwa kwensimbi e-US kwafinyelela kumathani ayizigidi ezingu-8.085, ukwanda konyaka nonyaka okungu-21.3% kanye nokwehla kwenyanga nonyaka okungu-3.8%.
Kusukela ngoJanuwari kuya kuSepthemba, ukuthunyelwa kwensimbi e-US kwakungamathani ayizigidi ezingama-70.739, okuwukwenyuka konyaka nonyaka okungu-17.0%.
Ngaphezu kwalokho, kusukela ngoJanuwari kuya kuSepthemba, ukuthunyelwa kwe-strip evikela ukugqwala e-US kukhuphuke ngo-19% unyaka nonyaka, ukuthunyelwa kwe-strip egoqekile ebandayo kukhuphuke ngo-17% unyaka nonyaka, kanti ukuthunyelwa kwe-strip egoqekile eshisayo kukhuphuke ngo-12% unyaka nonyaka.