1970.9.28: Ụlọ ọrụ guzobere
Onye bu ya ụzọ bụ "Yuhang bamboo ware and rain tools factory".
1990-1999: Ihe ọhụrụ, mmepe ngwa ngwa
Wuru ụlọ nyocha nyocha 7, nwere ihe karịrị ndị ọrụ ọkachamara 200
Bụ onye mbụ ghọrọ ebe nyocha na mmepe ọkwa mpaghara
Teknụzụ mita ume ogologo ndụ nọ na-eduga, nwere ihe dịka 1/3 ahịa ahịa na China
Bụ onye mbụ ghọrọ ebe nyocha na mmepe ọkwa mpaghara
Teknụzụ mita ume ogologo ndụ nọ na-eduga, nwere ihe dịka 1/3 ahịa ahịa na China
2000-2008: Ntugharị teknụzụ
Site na onye na-emepụta mita ike gbanwere ka ọ bụrụ onye na-eweta ihe ngwọta niile
2009-2015: smart na agbakwunyere mmepe
Igwe eletrik jikọtara ọnụ, mita mmiri, mita gas, mita thermal, wdg mepụtara usoro njikwa ike dị elu'
Nwere usoro nyocha nke smart smart nke mba ụwa
Nwere usoro nyocha nke smart smart nke mba ụwa
2015
Ụgwọ nke ụlọ ọrụ Holley Metering Ltd.akpọgharịrị aha ya ka ọ bụrụ "Holley Technology Ltd."
2016-ugbu a: Ike na IoT, mgbanwe atụmatụ
Bido nnukwu mgbanwe atọ (IPD, IT, nrụpụta ọgụgụ isi)
Ntughari n'ozuzu na ike na atụmatụ gburugburu ụlọ ọrụ IoT.
Ntughari n'ozuzu na ike na atụmatụ gburugburu ụlọ ọrụ IoT.