<prompt> Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu: Passage: The London Metal Exchange LME ndiyo inotengeserana zvenguva yemberi ine nyika guru musika mune zvokusarudza uye ramangwana zvibvumirano pamusoro base nemamwe nesimbi. Sezvo LME inopa zvibvumirano nemisi yekupera kwezuva nezuva kwemwedzi mitatu kubva pazuva rekutengesa, zvibvumirano zvevhiki nevhiki kusvika kumwedzi mitanhatu, uye zvibvumirano zvemwedzi kusvika kumwedzi 123, inobvumirawo kutengesa mari. Inopa kuchengetedza, kutarisisa mitengo yepasi rose, uye sarudzo yekuendesa chaiko kugadzirisa zvibvumirano. Kubvira muna 2012 yave iri yeHong Kong Exchanges and Clearing mushure mekunge vagovani veLME vavhota muna Chikunguru 2012 kuti vabvumidze kutengeswa kwekutsinhana pamutengo we 1.4 bhiriyoni. Mubvunzo: chii chinopiwa neLondon Metal exchange munyika yose?  <response>: kutarisisa mitengo 