1989 - 1995
- 1989 Conex extruder invention and patent application by Kari Kirjavainen
- Next year basic research work started at VTT Technical Research Centre of Finland
- 1993-1995 Conex technology research project by VTT with industrial partners

1995
- Conenor Ltd. found and grants Pipe License to Uponor Oyj and Cable License to NK Cables Oy, M. Vilkki nominated for acting Conenor MD
- Conex Extrusions Oy found for Conex extruder manufacturing
- Two parallel development projects started at VTT by Uponor and NK Cables in industrial scale resulting manufacturing of 6 Conex extruders by Nextrom

1999
- Nextrom Holding S.A. increases its share in Conex Extrusions Oy to 40%
- Nextrom Holding S.A. acquires all 100% shares of Conex Extrusions Oy
- Conenor sells out Conex technology rights in applications Solid Films, Blow Moulding, Cable and Soft Tube Packaging to Nextrom Holding S.A.
- Conenor sells Conex Pipe Patents to Uponor Innovation AB

2001
- Conenor Ltd. acquires all 25% Conenor shares from Uponor and M. Vilkki becomes the second partner of the company
- Nextrom Holding S.A. founds subsidiary Conex Technologies S.A. and allocates all its Conex operations in it
- Nextrom Holding S.A. and NK Communications Oy found a joint venture Conex Cables Oy for marketing and sales of Conex in cable industry
- Conenor focuses in development of new Conex-processes and applications
(WPC and others)
- acquisition of all TRIAXCELL-patents and IPR from Kari Kirjavainen
- start-up of TRIAXCELL-development