Ukuhlanya kwezinkinga ezingaphezulu zonke ziyaphendula kubazikhipha bezokusekela, futhi izikhumba zesithili sokwakha ziyasebenza njengomkhakha wokuphakama kwemithambo yezobuchwepheshe. Ngoba sibizwa ngokuba sibabili bokwakha isithili, siyakhulisa izikhumba zesithili sokwakha ezihigh-grade—kodwa kuzo kuzikhiqiza izikhumba zesithili, izikhumba zesithili ze-H, nezikhumba zesithili zokubuka phansi—okuzokwakha ngokuphelele kwezinhlelo zokuproducwa zokuziphatha ngokwezinye ukuze zifanele kwezinhlelo zokubeka ngezinsizakalo nezinhlelo zokubeka izinkampani. Lezi zikhumba zesithili sokwakha ziyavalekwa ngokuthi zinamandla amaningi okukhupha nokunquma izindawo ezide ngaphandle kokusekela phakathi, okwenza izindawo eziphakeme, eziphindele, okufanele kwezindawo zokusebenza, kwezindawo zokusebenza zokuthengisa, kanye nezindawo zokubuyisela. Ukukhokhwa kwethu okuphelele kwezimali kuvumela ukuthi zonke lezi zikhumba zesithili sokwakha zibe nenkimbinkimbi yezimali nezinhlelo zokusebenza, ziyakwazi ukusekela izinkampani ezingaphezulu, izindawo eziningi, noma izindawo zokusebenza zokugcina. Ngokuthi sibhishela izikhumba zesithili sokwakha eziphambili, sibhishela umkhakha owodwa okufanele ukuvumela ukuthi izindawo zokusebenza zokusekela isithili zibe nesikhungo, isikhungo, nokuphumelela kwezindawo zokusebenza zokusekela isithili zonke emhlabeni.