Ko nga tatauranga i tukuna e te International Stainless Steel Forum (ISSF) i te Oketopa 7 e whakaatu ana i te haurua tuatahi o te tau 2021, i piki ake te whakangao maitai kowiri tira o te ao ki te 24.9% tau ki te 29.026 miriona taranata.I runga i te maha o nga rohe, kua piki ake te whakaputanga o nga rohe katoa i ia tau: kua piki a Europe mo te 20.3% ki te 3.827 miriona taranata, ko te United States kua piki ake mo te 18.7% ki te 1.277 miriona taranata, me te whenua o Haina kua piki ake mo te 20.8 % ki te 16.243 miriona taranata, haunga te tuawhenua o Haina, Ahia tae atu ki South Korea me Indonesia (te nuinga o Inia, Hapani me Taiwan) i tipu ma te 25.6% ki te 3.725 miriona taranata, me etahi atu rohe (te nuinga o Indonesia, South Korea, South Africa, Brazil, me Russia) i piki ake i te 53.7% ki te 3.953 miriona taranata.

I te hauwha tuarua o te tau 2021, he rite tonu te hanga o te kowiri tira o te ao ki te hauwhā o mua.I roto ia ratou, haunga te tuawhenua o Haina me Ahia kaore i a Haina, South Korea, me Indonesia, kua heke te tauwehenga o te marama-marama, me era atu rohe nui kua piki ake i ia marama.

Kowiri tira whakangao maitai mawhero (wae: mano taranata)