Vuba aha, isoko rya aluminiyumu ryerekanye imbaraga zikomeye zo kuzamuka, aluminium LME yanditse inyungu zayo buri cyumweru muri iki cyumweru kuva hagati muri Mata. Shanghai Metal Exchange ya aluminiyumu nayo yatumye izamuka rikabije, imyigaragambyo yungukiwe cyane cyane n’ibikoresho fatizo bikomoka ku bicuruzwa ndetse n’ibiteganijwe ku isoko ry’igabanuka ry’Amerika muri Nzeri.

Kuva ku wa gatanu (23 Kanama) saa 15:09 Isaha ya Beijing, amasezerano ya LME y'amezi atatu ya aluminium yazamutseho 0.7%, naho $ 2496.50 kuri toni, yiyongeraho 5.5% mu cyumweru.ku gihe kimwe, icyicaro gikuru cya Shanghai Metal Exchange Ukwakira- ukwezi kwa aluminium amasezerano nubwo yakosowe gato mugihe cyo gufunga, yagabanutseho 0.1% kugeza US $ 19.795 (US $ 2.774.16) kuri toni, ariko kwiyongera kwicyumweru byari bigeze kuri 2.5%.

Kuzamuka kw'ibiciro bya aluminiyumu byafashijwe bwa mbere n’impagarara ku ruhande rutanga. Vuba aha, gukomeza gukwirakwiza isi yose ya alumina na bauxite, ibi bizamura igiciro cyo gukora aluminium kandi bishimangira ibiciro byisoko. By'umwihariko ku isoko rya alumina, ibura ry'ibicuruzwa, Ibarura mu bice byinshi by’ibicuruzwa bitanga umusaruro uri hafi yo kugabanuka.

Niba amakimbirane mu masoko ya alumina na bauxite akomeje, igiciro cya aluminium gishobora kuzamuka cyane. Mugihe igabanywa rya LME spot aluminium kuva mumezi atatu yigihe kizaza yagabanutse kugera kuri $ 17.08 kuri toni. Nurwego rwo hasi kuva 1 Gicurasi, ariko ntibisobanuye ko aluminium ari ngufi. Mubyukuri, ibarura rya LME aluminium ryaragabanutse kugera kuri toni 877.950, ni ryo hasi cyane kuva ku ya 8 Gicurasi, ariko riracyari hejuru ya 65% ugereranije no mu gihe kimwe cy’umwaka ushize.