Extensive development, irrational expansion, light technological progress and slow product upgrades are the main reasons for the excessive structural surplus of tire products and the large number of enterprises.
Amaka ya kupanga amatayala ya kwa Stertt yalanda pa ciputulwa ca calo conse, kabili na kabili e citungu ca kubalilapo mu China ukusondwelela ukufumyapo amaka ya kupanga ku numa(000)} amabuteko yambi ne misumba fibomba uyu mulimo wesu.
Ukulingana na makampani ayashapwililike, mupepi na makampani 24 aya matayala mu fya makwebo yonse yafumine mu cifulo ca kushitishamo ukufuma mu 2016 ukufika mu 2017, kabili fyonse ifya kufumamo fya matayala ya kusalululapo fyacefiwa ukufika kuli 19 milioni ya {4} Amatayala ayacepa aya radials yali mupepi na 33 milioni, ukubikapo na mamilioni ya mamilioni ya 899 )
Ukufuma ku mweshi wa Cikungu, mupepi na makampani 12 mu fya makwebo yali no kulolela ukupanga, ukuleka ukupanga, ukuonaika, no kufuma mu cifulo ca kushitishishamo pa mulandu wa mafya pamo nga ukucingililwa ku ndalama no kucingililwa ku cifulo(11) Bafumishepo pa 9 {5} amamilioni ya mamilioni ya cimuti kabili mupepi na 29 {amamilioni ya mamilioni. Imipangile ya fipe fya matayala.