History

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Year 1870
Production of water glass (silicate) started in the company of Friedrich Wassmund, which was later moved to the TONASO complex.
Year 1882
The Association for Chemical and Metallurgical Production had begun cooperation with the company Solvay & Cie in Brussels (Spolek-Solvay Joint Undertaking) on the introduction of new soda ash production in the territory of Austria-Hungary.
Year 1890
Establishment of The English Austrian Sugar Refineries Limited in London (later Nestomitzer Zucker-Rafinerie mit dem Sitze in Aussig), which produced refined sugar on the site of the later TONASO site.
Year 1892
Establishment of a port on the Elbe.
Year 1905
The construction of a factory for the production of soda ash by the Solvay method (Soda Factory - TONASO) has started.
Year 1908
Start of production of soda ash.
Year 1910
Production of calcium chloride and ammonium chloride.
Year 1912
The production of water glass (silicates) was transferred to the TONASO complex.
Year 1917
Production of sodium and potassium chromate begun.
Year 1918
Limestone mining started in the Solvay mines in the village of Svatý Jan pod Skalou.
Year 1921
Production of ammonium dichromate begun.
Year 1922
Production of precipitated calcium carbonate started.
Year 1924
Production of sodium bicarbonate begun.
Year 1932
The production of refined sugar was ended.
Year 1933
The annual production of soda ash was 70 kt / year.
Year 1945
Nationalization of TONASO.
Year 1951
Production of chromium salts and mordants started.
Year 1983
The annual production of soda ash reached 120 kt / year.
Year 1991
The production of soda ash ended.
Year 1992
Privatization of the national company TONASO.
Year 1994
Discontinuation of sodium bicarbonate production.
Year 2007
Establishment of the company Vodní sklo, a.s.
Year 2007
Acquisition of Vodní sklo Brno, a.s.
Year 2008
Establishment of the van Baerle VS joint venture. s.r.o.
Year 2008
Certificate 9001
Year 2009
Production of lithium silicates started
Year 2010
Member of the CEES / Cefic consortium.
Year 2013
Production of electrical insulating coating started.
Year 2014
ISO 14001 certification.
Year 2015
Member of the Chemical Industry Association.
Year 2016
Responsible Care, Halal and Kosher certification.
Year 2018
Establishment of Tonaso Coatings, s.r.o. engaged in the production of silicate paints.
Year 2020
Acquisition of silicate production in the Ústí nad Labem - Střekov complex.
Year 2021
Start of production of solid calcium chloride in a new spray dryer.