The company was founded by Late Alhaji Abdur Rahim in 1958 at Shyampur, Dhaka with a very small mill known as National Foundry. Factory was located on 4 bighas land with only 30 employees. National Foundry was the producer of hand-loom pinions, manhole covers, iron pipes & cisterns made of cast iron.
The first re-rolling mill was commissioned to manufacture 40 grade deformed bars in 1968.
Owing to the success of the re-rolling mill and high customer demand, a second mill was established in 1976 at Shyampur, Known as Diamond Steel Products Company Private Limited.
Rahim Group ventured into ship breaking or ship demolition industry in 1983 to obtain metal scrap. Till date, Rahim Group has successfully dismantled 49 ships of various sizes from different countries. The year of 1983 also marked the birth of Rahim Steel Mill at Kachpur, Sonargaon.
Continuing expansion, the first steel plant in Bangladesh was established at Kachpur in 1984 by Late Alhaji Abdur Rahim. His vision, dedication and hard work made it also possible to establish the first Bangladeshi industrial gas manufacturing plant for Oxygen, Acetylene and Nitrogen.
Rahim Group ventured into manufacturing of mild steel angles, channels, shafts and plain bars in 1995 through the establishment of Sonargaon Steels at Kachpur.
Not afraid of expanding horizons, the first 30 MW power plant, Rahim Energy was established on 1st December 2002, thus starting yet another journey into energy industry.
In March 2003, Rahim Steel Mill started manufacturing mild steel commercial plates. It is the first factory to manufacture mild steel commercial plates in Bangladesh and meets 20% of the country’s total demand of the product.
In 2004, Rahim Steel Mill was approved by Germanischer Lloyd of Germany for manufacturing hull structural steel plates in GL-A-grade for ship building.
In 2005, Bangladesh’ first coke plant, Carbon Bangladesh Limited started its operation in Kachpur.
In January 2009, another 32 MW plant was established to meet the growing energy demands of the factories established by Rahim Group. Currently, Rahim Energy Produces up to 62 MW of Energy.
In November 2010, for the first time in Bangladesh, Rahim Group started exporting Ferro Silicon products of value up to 5 million US Dollars to Italy, Netherlands, Luxemburg, India, Germany, Switzerland and Bulgaria.