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

24-26 March 2025
San Sebastian, Spain

Registration is open ahead of our upcoming first Members' Meeting for 2025.

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.