A unified voice
for the ore-based metallics industry
The International Iron Metallics Association (IIMA) is dedicated to those involved in the ore-based metallics value chain – raw material supply, production and transformation, trading and distribution, transportation and logistics, technology and equipment. Its members account for more than 80% of production and international trade in ore-based metallics.
About OBMs
Find out more about Pig Iron, HBI and DRI, their uses, characteristics and production.
About IIMA
Who we are, our purpose and what we do
Team & structure
Meet our board, executive team and secretariat
Our members
A full list of our associate, producer and trader members and fellows
OBMs and the
circular economy
Ore-based metallics are pivotal in the pathways to carbon neutral steelmaking and in enabling the recycling of scrap and the circular economy. See more on our sustainability page.
IIMA Biannual Members' Meeting
29 September - 1 October 2025
São Paulo. Brazil
The dates have been confirmed for our next meeting. Registration will open soon.
Resources
Fact sheets on ore-based metallics
In our series of fact sheets, you will find explanations and information on all areas of OBMs, from general overviews to specific details of the benefits of particular OBMs/metals in different production methods and uses.
Logistics & technical guides
Our series of logistics & technical guides for merchant OBMs are leading industry documents on the safe shipping, handling, and quality of assessment.
Decarbonisation whitepapers
To be effective in tackling the challenges and opportunities, the merchant ore-based metallics sector has begun exploring its role and we have published our current findings in a whitepaper series.
What’s new
