About us

Passion for iron salts

Managing Director:

Felix Aregger
More than 35 years of experience with iron salts, construction and further development of plants, production and distribution of iron salts.

2022
Commissioning of second production line (capacity expansion)
2022
2020
Over 40 years of experience with iron salts
Construction site Oensingen
2020
2010
Construction of the new production plant in Oensingen
Construction of a new plant. Oxygen replaces chlorine in the oxidation process.
(2009-2010)
2010
2009
Oxygen instead of chlorine
Development of the new oxygen process with a pilot plant.
2009
2008
Closure of the pulp mill
With the closure of the pulp factory, the chlorine source was lost and the lease was cancelled. This was followed by the demolition of the old factory building (2008-2010).
2008
2006
Felix Aregger new owner of Trifer AG
Felix Aregger buys the company from his father Anton Aregger, who is retiring.
2006
2001
Capacity expansion and construction of a new plant
Replacement of the previous chlorine sulphate production with a new plant and 3Rd capacity expansion.
2001
1995
Magnetit
Magnetite has been used as a contemporary raw material since 1995.
1995
1993
Scrap iron
Scrap iron as a raw material for the production of ferric chloride
1993
1989
Adaptation to the latest technologies and expansion
Expansion of the plant and adaptation to the latest technologies. Second capacity increase and start of ferric chloride production.
(1989-1993)
1989
1978
First capacity expansion
First capacity expansion and construction of an additional oxidation column.
1978
1977
Start Trifer AG
The founder of Trifer AG, Anton Aregger, begins his entrepreneurial activities. In 1977, he built the first plant for the production of ferric chlorosulphate in a pulp factory in Riedholz, Switzerland. The plant was already integrated backwards on a chlorine pipeline.
1977