NatSteel Holdings takes a multi-pronged approach to caring for our environment. We encourage our staff to take responsibility for the environment, and optimise the production life cycle to reduce waste, conserve energy and prevent pollution.

Over the past two decades, more than $20 million has been invested in pollution-control equipment and barriers to protect the environment.


Radioactive Scrap Monitoring System
We were the regional pioneers in radiation detection for our steel scrap operations back in 1994. Our steel products are certified as compliant with the safety standards of the International Atomic Energy Agency.


Reutilisation of Steel Slag
By effectively converting steel slag (a major by-product from the melting of steel scrap) into slag premix for road construction, NatSteel Holdings achieved waste minimisation, cost reduction, the conservation of natural resources and landfill space, and more durable roads.


Finger Shaft Furnace
By investing in the finger shaft furnace to replace the conventional electric arc furnace, we reduced energy usage by 25 percent.

Steel scrap is melted in batches at the furnace. The energy available in the exhaust gases (also known as flue) from the melting process can be recovered by passing the hot flue through the next batch of steel scrap, thus preheating it. The finger shaft forms the preheating chamber for the passage of the hot flue.


Hot Charging
In the late 1990s, our engineers modified the production process at the rolling mill by linking the operation of the Meltshop directly to the reheating furnace at the rolling mill via an automated conveyor system.

To roll billets into rebars or rods, the billets need to be at a temperature of around 1,100 degrees Celsius. Instead of reheating billets from room temperature, the automated conveyor system enabled the billets to arrive at the reheating furnace at temperatures of 700 to 750 degrees Celsius, thus saving reheating costs.

As a result, fuel consumption was reduced by more than 40 percent. There were manpower and time savings too with the automated conveyor system as the billets need not be trucked from the Meltshop to the reheating furnace.


Water Recycling
We built a drainage system to collect and recycle water used for cooling down billets as they pass through the rolling mill.