Changsha South Tantalum Niobium Co., Ltd(CSTN), a national high-tech enterprise, focuses its business on R&D and manufacture of tantalum, niobium, and tantalum and tungsten alloy materials and products since 2000.

Located at the Changsha development zone for high and new technological industry, we occupy an are of more than 30000 square meters. We are equipped with a comprehensive set of state-of-the-art producing machines and testing instruments. As a result, our annual production capacity reach over 200 tons.

We now have nearly 200 staff in total, among them 30% scientific research personnel of college degree or above.

With years of R&D, we have already achieved 13 national patents and other copyright patents, with independent intellectual property rights. From 2005, we have won ISO9001, ISO14000, ISO18000 certificates and many other National, provincial and municipal honorary certificates.

We own ourself import and export right. 85% of our products are sold to abroad, mainly in United States and Europe. In past over ten years, CSTN has provided its customers with the solutions to their materials technology problems in the main industry fields of chemical products, solar energy and semiconductor materials, powder metallurgy products, welding materials, diamond tools and medical materials. We win a great reputation of good quality and excellent service among our customers.