Make your
concepts fly.

Calstar Sponge Ltd. is the way to fly
with your dream to  make them real in your life.
Be ready to start your journey with world class products.

Better steels for the
environment and humans

Our research and development team is working to find out a batter way to produce much batter still which will be best fit for the environment and humans

The fourth new episode of Futurising season two is now available!

Calstar Sponge LTD will launch very soon a new  series of its ‘Futurising’ podcast that focuses on the future of the steel industry and the challenges and opportunities.

We will double our production capacity by 2030

We are expanding everyday and we are working to incresing our production capacity everyday. Our target is to double our production capacity within 2030 to fulfill the demand of our customers.

What We Do

Promoting Steel

As a building material, steel offers a variety of benefits. It is not only flexible, robust, and durable, but also beautiful.

Working With Global Customer

Concerning issues affecting the steel sector, ISA keeps in regular contact with the government.

Spreading The Word

In addition to actively participating throughout the WSA, ISA also collaborates with sister organisations in Asia, including China.

Acting Globally

Along with being an active WSA member, ISA collaborates with sister groups throughout Asia, including China.

Calstar Sponge Ltd is growing now rapidly. We are now ready for future

Calstar Sponge Ltd. is developing everyday as we are prepearing ourselves to achive the position of one of the best sponge  iron manufacturer of the world. We are working to increase our production capacity to fulfill our customer’s demand, we are working to develop the quality of our product to make our client’s business profitable with 100% satisfaction. Our research team working day and night to make our products more environment friendly and good for humans.

Product Range

Sponge Iron

Sponge iron is formed through the reduction of iron ore to metallic iron through reaction with carbon in the form of coal, etc. at approx. 1100 degree Celsius. Sponge iron is also referred to as direct reduced iron, metalized iron, or hot briquetted iron.

Billet

Billets are folded into long wire-like structures, and steel bars get shaped. These hold all the characteristics of steel billets like their quality and solidness. They are significantly used in the construction of buildings.

Insight Story

Life cycle thinking

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Life cycle thinking

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.

Life cycle thinking

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.