Copper Chemicals for Technology & Agriculture


Spiess-Urania Chemicals GmbH located in Hamburg is focused on the production, marketing and registration of copper chemicals and supplies a wide range of industries with special products. At our production site in Hamburg, we produce copper-based active ingredients as well as ready-to-use products.

Beside Cuprous Oxide, Red for antifouling paints, we supply our customers with Basic Copper Carbonate for the wood preservative industry and as feed additive in animal nutrition, as well as Copper Hydroxide for the wood preservative industry, for galvanization and many other chemical applications.

In agriculture, copper salts, used as protective fungicides and bactericides are of great importance. Spiess-Urania Chemicals GmbH produces the active ingredients Copper Hydroxide and Copper Oxychloride for use in the agricultural sector. These two copper salts are the basis for our ready-to-use plant protection products, which have been proven in practice for many years.

The copper products of Spiess-Urania Chemicals GmbH are marketed in more than 60 countries around the world. With our products, we serve the protection of materials, promote sustainability and increase food safety. In order to minimize environmental deposits while steadily improving their effectiveness and cost-efficiency, we continue to develop our products in close cooperation with our customers.

The history of Spiess-Urania Chemicals GmbH dates back to 1815. Due to constantly changing markets, the company developed steadily.

  • From the two companies C.F. Spiess & Sohn GmbH, Kleinkarlbach and Urania Chemicals GmbH, Hamburg Spiess-Urania Chemicals GmbH was founded in 1999.
  • In 2002, Mitsui & Co. Ltd., (Japan) invested in the company (80% of the shares).
  • In 2004, Mitsui & Co., Ltd. expanded its investment and became sole shareholder

As subsidiary of an internationally established trading group, we at Spiess-Urania Chemicals GmbH focus on copper chemicals for a successful business.

Affiliated Companies

The crop protection division of Spiess-Urania Chemicals GmbH merges with its sister company Certis Europe B.V..

Up-to-date information on the German and Austrian plant protection program and more will be available from 7 April 2018 at


For questions about the plant protection products please call for free 0800 8300 301.

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