Cookson from Wallsend near Newcastle-upon-Tyne in England starts producing lead salts as stabilisers for flexible PVC. Shortly after, Cookson opens a production plant in Sydney/Australia.
The Kautschuk-Gesellschaft, part of the Metallgesellschaft Group from Frankfurt/Main, embarks on the production and sales of stabilisers for PVC processing in Langelsheim. This business segment is transferred to the newly founded subsidiary Chemetall in 1982.
The Bleiberger Bergwerksunion (BBU) with its seat in Arnoldstein/Austria begins producing stabilisers.
Akdeniz Kimya was established.
Brazilian chemicals company Inbra begins manufacturing lead salts as PVC stabilisers. The stabiliser business is absorbed by the Chemetall Group in 1998.
Chemson was Born
Exports started to the Middle East by Akdeniz Kimya.
Stabiliser manufacturers Chemetall and Cookson combine their activities in a single joint venture. Chemson is born and starts operating from sites in Germany, England and Australia.
The Metallgesellschaft takes over the majority interests of the chemical business of the Bleiberger Bergwersunion (BBU).
Chemson purchases the remaining shares of BBU and the Cookson community shares.
The stabiliser activities of BBU and Cookson are bundled within the Chemson Group.
Exports started to North America and Europe by Akdeniz Kimya.
The US-American Chemical Group begins to manufacture PVC stabilisers at its Philadelphia site.
The lead oxide facility was established by Akdeniz Kimya.
Chemson buys shares in the Chemical Group.
The automation and modernization of the lead oxide facility was completed by Akdeniz Kimya.
In April 2000, a private group of investors and management take over the Chemson Group as part of a management buy-out. Chemson Polymer Additive AG is founded in Arnoldstein/Austria. As part of this development, Chemetall moves the stabiliser business of its Brazilian subsidiary Chemetall do Brasil to the new company. Also in 2000, Chemson takes over the remaining shares of the Chemical Group.
Chemson enters the Chinese market with the foundation of Dalian Chemson Chemical Products Co. Ltd. in Dalian/China.
Production of Ca-Zn based stabilizers was started by Akdeniz Kimya.
Production of Acrylic Processing Aids was started by Akdeniz Kimya..
Chemson Ltda., Durox Ltda. and Penos S. A. bundle their lead oxide activities within Durox Ltda. in Rio Claro/Brazil.
Betadiketone production was started by Akdeniz Kimya.
Chemson GmbH Frankfurt takes over the Allstab Chemicals Group. This takeover makes the Chemson Group the leading European provider of solid stabilisers for PVC processing.
Acrylic Impact Modifiers production was started by Akdeniz Kimya.
Calcium acetyl acetonate production was started by Akdeniz Kimya.
Acrylic Impact Modifier production capacity was increased by Akdeniz Kimya.
The Chemson Group is taken over by a mid-tier investment company.
Akdeniz Kimya took its position among the 10 fastest growing companies.
Akdeniz Kimya joined in the OYAK organization.
Chemson becomes part of the Turkish OYAK Group. Together with Akdeniz, also a member of the OYAK Group, Chemson becomes world market leader for PVC stabilisers.
Akdeniz Kimya and Chemson rose to the global leaders in the stabilizer sector with OYAK’s purchase of Chemson.
In September 2020, Akdeniz Kimya and Chemson merged into Akdeniz Chemson, of the leading producers of polymer additives, and the world market leader in the field of PVC stabilizer products.