Amashishini amakhulu emveliso yePVC ekharbhide yekharbhide yasekhaya akhuthaza ngamandla icebo lophuhliso loqoqosho olujikelezayo, andisa kwaye aqinise uthotho lwemizi-mveliso ngekharbhide yekharbhide ye-PVC njengesiseko, kwaye azama ukwakha iqela elikhulu lemizi-mveliso elidibanisa "i-coal-electricity-salt". Okwangoku, imithombo yeemveliso ze-vinyl vinyl eTshayina iphuhliswa kwicala elahlukileyo, elivule nendlela entsha yokuthengwa kwezinto ezikrwada kushishino lwePVC. Ii-coal-to-olefins zasekhaya, i-methanol-to-olefins, i-ethane-to-ethylene kunye nezinye iinkqubo zanamhlanje zenze ukuba ukuhanjiswa kwe-ethylene kube kuninzi.
