Ua hōʻike ʻia nā helu helu e ka International Stainless Steel Forum (ISSF) ma ʻOkakopa 7 i ka hapa mua o 2021, ua hoʻonui ʻia ka hoʻonui ʻia ʻana o ke kila stainless steel honua ma kahi o 24.9% makahiki-ma-makahiki i 29.026 miliona tons.Ma ke ʻano o kekahi mau ʻāpana, ua hoʻonui ʻia ka huahana o nā wahi āpau i kēlā me kēia makahiki: ua hoʻonui ʻia ʻo ʻEulopa ma kahi o 20,3% a i 3,827 miliona tons, ʻo ʻAmelika Hui Pū ʻIa ma kahi o 18,7% a 1,277 miliona tons, a ua hoʻonui ʻia ʻo Kina ma kahi o 20,8. % i ka 16.243 miliona tons, koe nae ka aina nui o Kina, Asia me South Korea a me Indonesia (ka nui o India, Iapana a me Taiwan) i ulu ma kahi o 25.6% a 3.725 miliona tons, a me na wahi e ae (ka nui o Indonesia, South Korea, South Africa, Brazil, a Ua ulu ʻo Russia ma kahi o 53.7% a i 3.953 miliona tons.

I ka hapaha lua o 2021, ua like like ka hana ʻana o ke kila kila kila honua me ka hapaha mua.Ma waena o lākou, koe wale nō ka ʻāina nui ʻo Kina a me ʻAsia me ka ʻole o Kina, South Korea, a me Indonesia, ua emi ka ratio o ka mahina ma ka mahina, a ua hoʻonui ʻia nā wahi nui ʻē aʻe i kēlā me kēia mahina.

Hana ʻia ke kila kila kila (unit: tausani tons)