Born in 1963, Christian Siest is an ENSIC Engineer. After working for 3 years in the Department of Studies and Research at EDF, he joined the American Rohm and Haas Group in Picardy as a new works Engineer and then a Production Engineer. In 2000, when the industrial site was acquired by Rohm and Haas, Christian was appointed Production Manager of the Semoy plant and then Site Director in 2003.
Christian was able to transform the site to give it a safety culture based on interdependence, and a culture of operational excellence, mobilizing more than €10 million in work to modernize the infrastructure. He then approached Orrion Chemicals, a young SME just created, in order to proceed with the takeover of the Semoy site and part of its activity to avoid its closure, thus creating Orrion Chemicals Orgaform (OCO), which he becomes Director. He took over the Industrial Management of the Orrion Chemicals group in 2012 and then the Presidency in 2016.
In 2018, he was part of the first promotion of the BPI accelerator in the Chemistry sector.
In 2020, despite the health crisis, he finalized an acquisition operation (LMBO) with the Managing Director of OCO.
Christian Siest is Vice-President of FRANCE CHIMIE in the Center – Val de Loire region after having been President between 2006 and 2009.
When ORRION Chemicals Orgaform was created in 2010, Christian Touzin joined the team as Sales and R&D Director. By implementing new commercial strategies by segment, it has enabled OCO to increase turnover by 50% in France and internationally over the past 10 years, thus facilitating investment in new activities. In 2015, while retaining his operational functions, Christian was appointed General Manager of ORRION Chemicals Orgaform.In 2020, through an acquisition operation (LMBO), the Chairman and the General Manager become majority shareholders of the company.Holder of a double technical degree in chemical engineering from ESCOM and in management with an MBA from the IAE of Paris-Sorbonne, Christian TOUZIN began his career working for Solvay then for Rohm and Haas in commercial activities in increasingly technical. His dynamism to develop turnover and profitability leads him to evolve quickly.