Ko te wā utu paerewa mō te pakihi-ki-te-pākihi he 30% te moni tāpui i te whakaūnga o te ota, 70% te toenga i mua i te tuku . Mō ngā raina whakaputa ritenga nui, mō ngā kaupapa utu-matua nui rānei, ka taea e mātou te whiriwhiri i ngā utu tohu paetae i runga i te ahunga whakamua o te kaupapa. E whakaaetia ana ngā Reta Whiwhinga (L/C) i te arotakenga o mua. Ko ngā utu katoa ka whakahuatia i roto i te USD. Ko ngā tikanga utu whakamutunga ka whakaūngia i roto i te kirimana hoko.
Ko Shenzhen Hasung Precious Metals Equipment Technology Co., Ltd. he kamupene miihini hangarau kei te tonga o Haina, i roto i te tāone ataahua me te tino tere te tipu ohaoha, arā, ko Shenzhen. He kaiārahi hangarau te kamupene i roto i te ao o ngā taputapu whakamahana me te whakarewa mō te umanga konganuku utu nui me ngā rauemi hou.
Mā te mōhiotanga pakari ki te hangarau whakarewa korehau ka taea e mātou te mahi ki ngā kiritaki ahumahi ki te whakarewa i te maitai whakarewa-teitei, te koranu platinum-rhodium e hiahiatia ana te korehau teitei, te koura me te hiriwa, me ētahi atu.