The foundation of the Gemcon Group, Castle Construction was established in 1979. We are engaged in consulting and contracting of civil, mechanical, electrical, and process engineering, as well as mining and hydrocarbon exploration.

Charka Steel is the only ISO 9001-certified high-carbon, high-tensile steel wire drawing factory in Bangladesh. Established in 2001, our factory produces a wide range of high-tensile, spiral, ribbed, PC steel wire.

Gemcon Limited is the first and largest manufacturer of Spun Pre-stressed Concrete (SPC) poles in Bangladesh. Our innovative technology creates poles with the highest density, lowest weight and best strength-to-weight ratio.