2012 Acquisition of a Czech company producing air tanks, Worthington Cylinders a.s., on 31 October, 2012.
2013 Worthington Cylinders a.s. was renamed Frauenthal Automotive Hustopeče s.r.o. on January 1, 2013 On 01 May, 2013, the air tank manufacturing plant in Ahlen was sold.
2014 Reorganisation of Frauenthal Automotive Division into a business unit. From it, the Business Unit Airtank with two air tank manufacturing plants in Germany and the Czech Republic is created.
2019 Integration of the Airtank business unit into the Gnotec business unit. Both business units remain as separate entities.
2021 Name changed to Frauenthal Airtank Elterlein GmbH