M'modzi mwa otsogola padziko lonse lapansi opanga zida zapadera komanso zotsogola kwambiri za carbon black posachedwapa adalengeza kuti akukonzekera kukweza mitengo yazinthu zonse za carbon black zomwe zimapangidwa ku North America mu September uno.

Kuwonjezekaku kudabwera chifukwa cha kukwera mtengo kwa magwiridwe antchito okhudzana ndi machitidwe owongolera mpweya omwe akhazikitsidwa posachedwa komanso ndalama zofananira nazo zomwe zimafunikira kuti ntchito zisungidwe.Kuphatikiza apo, ndalama zolipirira ntchito, zolipirira ndi kubwezeredwa kwa voliyumu zidzasinthidwa kuti ziwonetsere mtengo wokwera wazinthu zogulira, kudzipereka kwakukulu ndi ziyembekezo zodalirika.

Kukwera kwamitengo kotereku kukuyembekezeka kupititsa patsogolo chitetezo ndi kukhazikika munjira zopangira mpweya wakuda.