Erdemir and İsdemir, subsidiaries of OYAK Mining and Metallurgy, continue to take strategic steps toward sustainable growth and their Net Zero Roadmap goals. Accelerating investments aligned with these objectives, Erdemir announced via KAP statements the commissioning of its 4th Coke Battery and By-Products Facility, while İsdemir reported the launch of its next-generation No.1 Blast Furnace.
OYAK Mining and Metallurgy companies Erdemir and İsdemir have put two major investments into operation in line with their Net Zero Roadmap and sustainable growth objectives. Erdemir has completed the construction of its 4th Coke Battery and By-Products Plant, while İsdemir has commenced production at Türkiye's highest-capacity, next-generation No.1 Blast Furnace.
Erdemir, which carries out all its operations in line with the principles of responsible production and sustainability, will enhance its competitive strength with the investment in the 4th Coke Battery and By-Products Facility, a reflection of its environmentally conscious production approach.
Commissioned to balance coke production, improve environmental performance, and establish a new by-products facility, the plant has an annual production capacity of 800,000 tons. The 4th coke battery, which will reduce Erdemir’s reliance on imported coke and external sources, also strengthens production supply security and lowers costs.
First and second batteries retired
Built to replace the first and second batteries that had been operational since 1965, the new 4th coke battery and by-products facility is equipped with advanced dust collection and filtration systems and a high-level automation infrastructure. Engineering, planning, implementation, contracting, procurement, construction, installation, and testing processes were carried out by Erdemir Engineering and Erdemir teams composed of experts. This investment reflects Erdemir’s engineering strength and capacity for innovation and highlights the company’s commitment to conducting industrial activities with environmental responsibility.
With the commissioning of the 4th Coke Battery and By-Products Facility, the 1st and 2nd coke batteries, which had been in service since 1965 and consisted of 74 furnaces, were completely shut down. The 1st and 2nd coke batteries, among the oldest active coke batteries in the world and having completed their economic lifespan, were decommissioned after 60 years of uninterrupted service with the final furnace push, and production at the remaining furnaces was completely ceased.
İsdemir commissions Türkiye’s highest-capacity blast furnace
İsdemir, in a strategic move to increase production capacity and enhance its competitiveness in the sector, has commissioned Türkiye’s highest-capacity next-generation blast furnace. Designed and constructed with the contributions of Turkish engineers, the new furnace is set to significantly advance the company’s carbon neutrality targets and sustainable growth vision by improving energy efficiency, lowering costs, and adopting environmentally friendly production methods.
With an annual liquid pig iron production capacity of 2.8 million tons, the original No.1 blast furnace, first commissioned on December 21, 1975, and which produced a total of 16,334,913 tons of liquid pig iron by May 19, 2016, has been completely redesigned and rebuilt using cutting-edge technology. This next-generation blast furnace features advanced systems that improve operational efficiency, reduce emissions, and support energy recovery, all contributing to İsdemir’s carbon neutrality goals.
The number of tuyeres in İsdemir’s new blast furnace has been increased from 16 to 32, and the number of tapping holes from 1 to 4, enabling a faster and more efficient production process. The raw material feeding system has been modernized, and upgrades to the heating system have optimized energy usage. Furthermore, advanced monitoring and analysis systems have improved process control and efficiency, while eco-friendly gas recovery technology has helped reduce emissions, marking a significant step toward sustainable production. Thanks to its advanced energy conversion system (TRT - Top Gas Recovery), the new blast furnace has achieved an electricity generation capacity of 13.5 MW, representing a major leap forward in energy efficiency.
