Umsebenzi we-H&E unamava atyebileyo kubuchwephesha kunye nobuchwephesha kwiimveliso zabo iminyaka emininzi. Kwimveliso nganye, i-H & E kufuneka iphumelele uhlolo olungqongqo yi-QC kunye nenjineli xa ifuneka.
I-H&E izibophelele ekuboneleleni abathengi kumazwe aphesheya umgangatho ophezulu, iimveliso ezinexabiso eliphantsi kunye nokuhanjiswa okukhawulezayo. Zisa ezona mveliso zibalaseleyo kunye nenkonzo kubathengi kwaye useke ubudlelwane obusondeleyo beshishini ukuze baxhamle ngokufanayo kwixesha elide.