The mission of the International Antimony Association (i2a) is to conduct studies and to disseminate information concerning the safety and benefits of antimony and antimony compounds, by way of giving access to data, sharing and providing information on the content of data, for the benefit of producers and importers of antimony and antimony compounds world-wide regarding environmental, health and safety regulations of these antimony compounds.

i2a also provides pertinent scientific information to government agencies worldwide.

All i2a members ensure that antimony compounds are safely produced and applied.

REACH regulatory issues (Regulation (EC) n° 1907/2006), the conduct of studies and data gathering for REACH purposes in view of joint registration is a priority for i2a.


i2a represents producers, importers and distributors of 10antimony compounds:

  1. Antimony Metal
  2. Diantimony Trioxide
  3. Diantimony Trisulfide
  4. Diantimony Tris(ethylene glycolate)
  5. Antimony Trichloride
  6. Antimony Triacetate
  7. Diantimony Pentoxide
  8. Sodium Antimonate (A)
  9. Antimony Pentachloride
  10. Sodium Hexahydroxoantimonate


The Antimony Oxide Industry Association (AOIA) was formed in 1978 to meet the requirements of the antimony oxide industry in the USA. At the time the priority of the AOIA was to support the US Environmental Protection Agency's initiative (US EPA) to carry out carcinogenic studies.

In 1983, the AOIA was commissioned to conduct an inhalation study with rats. The peer reviewed study concluded that the exposure did not cause cancerous tumours in the lungs of rats. Over the years the Association continued to submit studies and inform the US government on many health issues.

In 2000, the International Antimony Oxide Industry Association (IAOIA) was formed by European and American (AOIA) antimony trioxide producers and the Japanese Mining Industry Association (JMIA) to develop a scientific programme and formal stakeholder communications on antimony trioxide.

In 2001, the US-based Antimony Oxide Industry Association (AOIA) ceased to exist and all relevant work was continued solely by the International Association, IAOIA.

A category for associate members has been added to meet the demand for other stake- holders to become involved in the organization. These stakeholders, including producers of related products, distributors and consumers choose to actively participate in issues that relate to antimony trioxide.

With the major producers of antimony trioxide worldwide united, IAOIA had a strong voice to defend its product.

To meet the EU-REACH regulatory requirements, IAOIA broadened its scope to cover other antimony substances as well.

Since January 2008, the Association became the International Antimony Association (i2a). It is a Belgian non-profit industry Association (vzw).
International Antimony Association VZW
Avenue de Broqueville 12
BE-1150 Brussels
T : +32 2 762 30 93
F : +32 2 762 82 29
VAT : BE 0894.536.176
E :
Création site internet | IDcreation 2012 | Last updated: 22/11/2017