Below is the information acquired on TESSENDERLO GROUP NV, which is not yet included in our research perimeter.

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Last update 10 July 2021

Description of economic activities

Manufacture of other inorganic basic chemicals (NACE2 2013)

This company, with headquarters in Brussels, Belgium, is involved in the manufacture of inorganic chemicals, fine chemicals, plastics converting, PVC and natural organic products. It was founded in 1892. The group's principal activities are carried out in three primary segments: Chemicals, Specialties and Plastics converting. Its Chemicals comprises of three business units: Inorganics, Chlor-alkali and PVC. Inorganics include animal feed and fertilizers for use in dry areas and for highly sensitive crops such as vegetables, fruit, flowers and tobacco. Its specialties include the business units--Fine Chemicals, Gelatin and Natural Derivatives which include organic chlorine derivatives that are used in industrial chemicals, pharmaceuticals and agrochemicals. Its Gelatin activity, on the other hand, includes formulation and production of ingredients and additives for the food products industry while Plastic converting business units include plastic pipes, fittings and compounds. The company's brand names are ATS-Thio-Sul, KTS, CaTs and MagThio. It is the world's second largest manufacturer of potassium sulphate. The group ranks second in the world market, and first in the European market, for animal feed phosphates. In addition, it is the world's largest producer of liquid sulphur fertilizers (including ammonium thiosulphate, potassium thiosulphate, calcium thiosulphate and magnesium thiosulphate). The group is committed to further expand its business, principally through innovation and acquisitions of companies and to continue demonstrating the legitimacy of its industrial and financial coherence by constantly adjusting its resources to the structures, internal processes and working methods of all interested parties. The company's production sites for inorganic and chlore-alkali are situated in Ham and Tessenderlo (Belgium), in Europe and in Phoenix, Arizona (North America) while PVC products are manufactured in Belgium, in Beek (Netherlands) and in Mazingarbe (France). Its production sites for fine chemicals are in Lianyugang (China), Tessenderlo (Belgium), Maastricht (Netherlands), Leek and Widnes (United Kingdom) and Milan (Italy). Its pharmaceutical industries are located in Calais and Loos (France), Treviglio (Italy) and in Tessenderlo (Belgium). Its gelatin production processes also occurs in Vilvoorde and Nienburg (Belgium), Santa Fe (Argentina), Treforest (Wales) and Davenport (USA). Its production of food ingredients and additives as well as natural derivatives takes place in France. For the plastic conversion, the production units for PVC are in Oakmont (Pennsylvania), Quebec (Canada), Clerval (France) and Oeselgem (Belgium), while the plastic pipes and fittings are produced in Steenwijk (Germany), Overpelt (Belgium), Jelcz Laskowice (Poland) and in Quincieux and Sainte-Austreberthe in Hesdin (France). Its compound products are manufactured in Strasbourg and Tiffauges (France) and in Sochaczew (Poland). The company is also active in South America and other parts in the world. The company's business partner is BC Vilvoorde. The company is a member of IFP (Inorganic Feed Phosphates) Organization, Emfema Organization, APIC (Active Pharmaceutical Ingredients Committee), VAL-I-PAC, FCIB (Association of Executives in Finance, Credit and International Business) and EFES (EUROPEAN FEDERATION OF EMPLOYEE SHARE OWNERSHIP).

  • Belgium (BE)
  • Company type: Corporate
  • Parent company: VERBRUGGE
  • Chief Executive Officer (CEO): Mr Stefaan Arthur Jules Haspeslagh
  • CEO Total remuneration: N/A
  • Website:

Financial data

Number of employees


Revenue 1






1 numbers are in millions

  • RepRisk Indicator (last month):  N/A

Social dialog

  • Transnational Corporate Agreement (TCA): N/A
  • Global Framework Agreement (GFA): N/A
  • Societas Europaea (SE): N/A
  • Bangladesh Accord: N/A

European Works Councils

Standards and certifications

  • Global Compact: N/A
  • CDP (Carbon Disclosure Project): N/A
  • Modern Slavery Statement: N/A
  • Transparency Index: N/A
  • SA8000 Social Accountability: N/A
  • Integrated report: N/A
  • ISO26000: N/A
  • OECD Guidelines:
  • Social Development Goals (SDGs): N/A

Global Reporting Initiative certification

  • Global Reporting Initiative standards: N/A
  • Global Reporting Initiative GRI G4: N/A

Other company declarations

Other resources


  • Training policy: N/A
  • Policy to protect the right to health and safety in the workplaces where the company operates: N/A
  • Policy to protect the right to health and safety in the workplaces in the supply chain: N/A
  • Diversity policy: N/A

Universal declarations

Declarations and treaties recognised by the country where the company has its registered office

  • Universal Declaration of Human Rights:
  • European Convention on Human Rights (ECHR):
  • Charter of Fundamental Rights of CDFL Workers (Strasbourg Charter 1989):
  • Charter of Fundamental Rights of the European Union EU CFR (Nice Charter 2000):
  • Treaty on the Functioning of the European Union TFEU:
  • Registered office in an OECD country:
  • ILO C029 - Forced Labour Convention, 1930 (No. 29):
  • ILO C087 - Freedom of Association and Protection of the Right to Organise Convention, 1948 (No. 87):
  • ILO C098 - Right to Organise and Collective Bargaining Convention, 1949 (No. 98):
  • ILO C100 - Equal Remuneration Convention, 1951 (No. 100):
  • ILO C105 - Abolition of Forced Labour Convention, 1957 (No. 105):
  • ILO C111 - Discrimination (Employment and Occupation) Convention, 1958 (No. 111):
  • ILO C138 - Minimum Age Convention, 1973 (No. 138):
  • ILO C182 - Worst Forms of Child Labour Convention, 1999 (No. 182):

Directives applied in the company offices in EU 27

  • D. 80/987/EEC:
  • D. 89/391/EEC:
  • D. 98/59/EC:
  • D. 2000/43/EC:
  • D. 2000/78/EC:
  • D. 2001/23/EC:
  • Council D. 2001/86/EC:
  • D. 2002/14/EC:
  • D. 2002/73/EC:
  • Council D. 2003/72/EC:
  • EP and Council D. 2005/56/EC:
  • D. 2009/38/EC:
  • D. 2004/25/EC:
  • D. 2011/35/EU:

Presence in main rankings

  • Global 100 Most Sustainable Corporations: N/A
  • Global CSR Rep Trak 100: N/A
  • BrandZ Top 100 Most Valuable US Brands: N/A
  • The Worlds Best Multinational Workplaces: N/A
  • The Gartner Supply Chain Top 25: N/A
  • The Worlds Most Innovative Companies: N/A
  • The Diversity Inc Top 50 Companies: N/A
  • Best Global Websites: N/A
  • Green Ranking Global Top 500: N/A
  • Green Ranking Global Top 100: N/A

Reference trade unions