1989
鈻睮n 1989, officially changed its name to "Dongying Shandong petrochemical plant"..
鈻睲ay 29, 1989, according to the eastern engendering (1989) No. 4 "Dongying District Development Committee on District chemical factory level and nature of notice" to confirm for the group of science and technology enterprises.
鈻睮n October 15, 1989, by the Dongying District chemical plant officially changed its name to "Dongying Shandong petrochemical plant".