化(hua)工(gong)園(yuan)(yuan)區是指(zhi)由多個相關聯的化(hua)工(gong)企業(ye)或項目構成，以(yi)發展石化(hua)和(he)(he)化(hua)工(gong)產業(ye)為導向(xiang)，地理邊界和(he)(he)管理主體明確，基礎設(she)施(shi)和(he)(he)管理體系完整(zheng)的工(gong)業(ye)區域，包(bao)括(kuo)專門設(she)置(zhi)的化(hua)工(gong)園(yuan)(yuan)區以(yi)及在各類開發區或其(qi)他工(gong)業(ye)園(yuan)(yuan)區內相對獨(du)立設(she)置(zhi)的以(yi)石化(hua)和(he)(he)化(hua)工(gong)為主導的產業(ye)園(yuan)(yuan)或集(ji)中區兩類。

在(zai)第二批化(hua)(hua)工(gong)(gong)園區(qu)（化(hua)(hua)工(gong)(gong)集中(zhong)(zhong)區(qu)）名(ming)單(dan)中(zhong)(zhong)，化(hua)(hua)工(gong)(gong)園區(qu)僅(jin)有(you)(you)1個，為內蒙(meng)古鄂(e)爾多(duo)斯上(shang)海廟(miao)經(jing)濟開發(fa)區(qu)，其(qi)余10個均為化(hua)(hua)工(gong)(gong)集中(zhong)(zhong)區(qu)；從地(di)區(qu)分布來看，鄂(e)爾多(duo)斯市(shi)有(you)(you)3入(ru)選(xuan)，是入(ru)選(xuan)數量最多(duo)的(de)地(di)區(qu)，其(qi)次是呼(hu)和浩特市(shi)、赤(chi)峰(feng)市(shi)和巴彥淖爾市(shi)，各有(you)(you)2個，包頭市(shi)、烏蘭察布市(shi)則(ze)各有(you)(you)1入(ru)選(xuan)。