Imishini yokuqondisa izinjaba ezinamandla kufanele zisivumele isivumelwano esihlukile, ngokuphathwa kwezinhlobo zokusebenza ngokuphelele, futhi sizibhala izinhlobo zokusebenza ngamandla nesikhathi esihlukile ngokubhekisele kuzo ukusebenza kwakho kabefore ukwenziwa. Sibhala ubunzima bezimotolo, amanzi, nokuvamisa kwezinyawo, emva koko sizifaka kusebenza ngokufundisa abasebenzi bese sibhala isivumelwano sokubona ukuthi sisebenza kahle. Izinkothama zezibhokisi ziyabhalwa ngokubhala izinkothama zezibhokisi zokudla, futhi isikhathi esihlukile sisivumela abasebenzi bakho ukubhekisele kubukhulu bezinyawo kubukhulu bezinjaba. Isivumelwano sokubhala izinto ezingafaniyo esingasemva kwezinyanga ezishumi sivumela ukungabi nento eyayikhiywa, futhi izihlabo zezindawo zizoba ngaphansi kwamasonto amashumi elithathu kwezinyanga zezindawo zokuhamba. Uma ukusebenza kuyakhula, izidruma ezifanayo ziyabukwa kusuka kusame frame ukuze kuvuleke ukusebenza. Abalimi bethu bahlala bayavamisekile ukubhala izivumelwano zokubhala izinto zokuchitha okuyizindlela zokuvikela ukusebenza kahle nokuvikela ukuthi ungene ku-exports.