1903
ZENNER was founded in saaebrucken，Germany
1945
Minol was founded in Stuttgart,Germany
2000
Set up Asia Pacific (China) production base
2011
Zenner started gas meter business in China (ZMT)
2014
Set up Hebei Huatong Gas Equipment Co.,Ltd. in Handan, Hebei
2017
Set up automatic gas meter production line with 5 million gas meters annual capacity
2019
Set up 200,000 square meters another factory in Anhui,Wuhu
2021
New Shanghai headquarters building construction started
2023
Shenzhen GEM listed
2024
Move to new headquarters building
