Na Febụwarị 24, 2022, Ụlọ Ọrụ Ọrụ Ókèala nke Canada (CBSA) mere mkpebi ikpeazụ nke nyocha mbụ nke mgbochi ọdịda anyanwụ na paịpụ carbon na alloy ígwè nke nwere dayameta buru ibu nke a na-agbakọta site na China na Japan. E mere nyocha mbụ nke ọdịda anyanwụ na-agbagọ na paịpụ ígwè carbon alloy nke nwere dayameta buru ibu nke a na-agbakọta site na China. Mkpebi ikpeazụ: ọ bụrụ na a kagbuo usoro mgbochi ịwụfu na mgbochi ugbu a, ịtụfu na enyemaka gọọmentị nke ngwaahịa ndị metụtara Canada ga-aga n'ihu ma ọ bụ mee ọzọ. A na-atụ anya na Ụlọikpe Azụmaahịa Mba Nile nke Kanada (citt) ga-eme mkpebi ikpeazụ gbasara mmebi ụlọ ọrụ site na nyocha mgbochi anyanwụ ugboro abụọ tupu Ọgọst 3, 2022. Koodu omenala nke ngwaahịa ndị metụtara tupu Febụwarị 4, 2021 bụ 7305.11.00.22, 7305.11.00.23, 7305.11.00.24, 7305.11.00.25, 7305.12.00.21, 7305.12.00.22, 7305.12.00.23, 7305.12.00.24, 7305.19.00.22, 7305.19.00.23, 7305.19.00.24 na 7305.19.00.25. Site na Febụwarị 4, 2021, dịka tebụl tarifụ emelitere si kwuo, koodu omenala nke ngwaahịa ndị metụtara bụ 7305.11.00.41, 7305.11.00.42, 7305.11.00.43, 7305.11.00.44, 7305.11.00.49, 7305.12.00.41, 7305.12.00.42, 7305.12.00.43, 7305.12.00.44, 7305.12.00.49, 7305.19.00.22, 7305.19.00.23, 7305.19.00.24 na 7305.19.00.25.
Na Machị 24, 2016, Kanada tinyere akwụkwọ nyocha mgbochi ịtụfu ihe na ọkpọkọ ígwè carbon alloy nke buru ibu nke a na-etinye na China na Japan, nakwa nyocha megide ngwaahịa ndị e si China ma ọ bụ si mba ọzọ ebubata. Na Septemba 20, 2016, ndị ọrụ ókèala Canada mere mkpebi ikpeazụ megide ịtụfu ihe na ngwaahịa ndị metụtara ikpe ahụ sitere na China na Japan, yana mkpebi ikpeazụ megide ịtụfu ihe na ngwaahịa ndị metụtara ikpe ahụ ebubata ma ọ bụ si China. Na Septemba 27 na 28, 2021, International Trade Tribunal of Canada (citt) na Canadian Border Service Agency (CBSA) wepụtara ọkwa iji mee nyocha mbụ megide ịtụfu ihe na nyocha na nyocha na ọkpọkọ ígwè carbon alloy nke buru ibu nke a na-etinye na China na Japan, na nyocha mbụ megide ọdịda anyanwụ na ọkpọkọ ígwè carbon alloy nke buru ibu nke a na-etinye na China.