Njengenye yezona ndawo zixhomekeke kakhulu kukhuphiswano lwenkampani, ii-insulators zethu zeplastikhi zeplastikhi zivunyiwe yi-UPC. Kwaye bafumana udumo olukhulu kwihlabathi liphela, ngakumbi eMntla Melika. Kwakhona, iimbambo zazo zivumela umbhobho ukuba uwele ngokulula nangokuthe cwaka xa umbhobho usanda kunye nezivumelwano.