1958
Nanshi Village Established Nanshi Refractory Material Factory
1978
Renamed Zhangdian Glass Refractory Factory
1984
New name Zibo Yumin Refractory Co., Ltd
1991
The first refractory manufacturer in China successfully developed and produced synthetic sillimanite refractory products.
1995
Built a new plant, Renamed Zibo Yumin Refractory Material Technology Co., Ltd with two production sites
2002 ~ 2005
Built new tunnel kilns and shuttle kilns and upgraded production lines to clean energy natural gas
2009
A new production base was selected, and named as Zibo Yumin Base Pledge New Material Co., Ltd
2010
~
2014
New production lines were completed gradually and put into use
2015
Build isostatically pressed production line to produce Dense Series Refractories
2016
The old sites were tore down, The whole company moved to Zibo Yumin Base Pledge New Material Co., Ltd
2020
Build a new automatic production line, Today the annual supply ability increased to 80000 tons
