1999
1999- Hoʻokumu i ka mea kanu electrode graphite.
2000
2000- Kūʻai 10 + hui Mechanic Machines
2007
2007-I kūkulu hou ʻia 18- lumi apo i ka umu hoʻolapalapa
2014
2014-I kūkulu hou ʻia 20000KVA LWG graphitization umu ahi
2015
2014-Purcahse Nā mīkini hana kaiapuni hou
2016
2016-Kūkulu i ka 24 cans calciner
2017
2017-Hoʻohou i kūkulu hou i kahi hale kūʻai nui no ka graphite electrode a me CPC
2018
2018-Hoʻokipa ʻia kā mākou huahana a puni ka hale hana kila honua
2019
I ka hopena o 2019 E kūʻai aku i ka crusher hou a me nā lako screening
2020
I kēia lā ua lawa kā mākou ʻike ma ka hana ʻana a me ke kūʻai aku ʻana iā GE a me Carbon Additives