Iwu nnyefe International Chamber of Commerce (ICC) bipụtara nke na-akọwa ka e si ekesa nnyefe, ihe egwu na mmefu n'etiti onye na-azụ ahịa na onye na-ere ahịa.
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Incoterms (Usoro Azụmahịa Mba Ụwa) bụ iwu ọkọlọtọ na-akọwa ebe a na-ebuga ngwaahịa, oge ihe egwu na-esi n'aka onye na-ere ahịa gafee n'aka onye na-azụ ahịa, na onye na-akwụ ụgwọ dịka mbufe, mkpuchi na kọstọm. Ụdị dị ugbu a bụ Incoterms 2020.
Incoterms anaghị achịkwa mbufe nwe ihe, usoro ịkwụ ụgwọ ma ọ bụ nkwekọrịta ahụ n'ozuzu ya; a ga-edepụta ihe ndị a iche na nkwekọrịta ire ahịa. A ga-ede iwu ahụ ya na ebe a kpọrọ aha na ụdị ya (dịka FOB Shanghai Incoterms 2020).