A matsayin ƙasashe da ke son kiyaye makamashi a masana'antar gilashi da rage hayaki mai gurbata muhalli, yawan amfani da makamashi a ƙarƙashin kulawar kasuwa don yawan damuwar da ke ƙaruwa. A halin yanzu, yawancin masu zuba jari da 'yan kasuwa sun san game da masana'antar gilashi ba su da yawa, a cewar wani ziyara da aka yi kwanan nan, zurfin bincike da bin diddigin bincike, ɗan gajeren bincike kan ci gaban masana'antar gilashi, don mu sami fahimtar masana'antar sosai.

Kamfanonin rarraba gilashin masana'antu a China galibi suna yaɗuwa ne a Liaoning, Hebei, Shandong, Jiangsu, Zhejiang, Guangdong, Fujian, yanzu haka suna cikin Inner Mongolia da kuma yankunan arewa maso yamma na tsakiya da gabas, akwai kuma wani ɓangare na layin samarwa. Halayen gilashin da kansa yana da rauni kuma ana iya raba iyakokin jigilar kaya zuwa yanayin siyarwa zuwa amfani da tallan mai zurfi a cikin kilomita 300, kilomita 300 ta hanyar zaɓar nau'in rarrabawa, kilomita 800 nesa.