izindlu GS upasile ISO9001-2015 inkqubo yolawulo lwesiqinisekiso inkqubo yomgangatho wamazwe ngamazwe, isiqinisekiso Class II kwikontraka yobuchwephesha ubunjineli isakhiwo intsimbi, isiqinisekiso Class I kuyilo metal (udonga) uyilo kunye nolwakhiwo, Class II isiqinisekiso kushishino lokwakha (ukwakha ubunjineli) uyilo, Isiqinisekiso seKlasi yesi-II yoyilo olukhethekileyo lwesakhiwo sensimbi ekhanyayo. Zonke iindawo zezindlu ezenziwe ngezindlu ze-GS ziphumelele uvavanyo lobuchwephesha, umgangatho unokuqinisekiswa, wamkelekile ukuba undwendwele inkampani yethu.
