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.

Since established， our company keep developing and growing. Now， it has grown from a small company with a staff of only over thirty to a well-known enterprise with a staff of 82， a plant area of 8003㎡， a whole set of modern production and R&D equipment and detecting instrument， and a complete business model of R&D， manufacturing， marketing， and maintenance. As to R&D and product development， our company has obtained a patent(name of the patent: spinneret manufacturing method， patent No.:200510031587.3) and a patent of utility model(name of the patent: Copper Tantalum Anode， patent No.:ZL200820159465.1)， and a patent has obtained the notice of patent licensing and willbe authorized soon. Our company has been entitled as the High and New Tech Enterprise， and obtained the certificate of quality management system. With the self-importation and exportation rights， our products have been exported to many counties and regions， including the U.S.， Japan and the E.U.， and enjoy a good reputation in the market.

2013 The sales revenue of 2013 is 200 million, 160 million from international sales;

2013 Rated as“Key high and new-tech enterprise of National Torch Plan”by National Technology Department;

2013 The brand “Kun Lin” was approved by the State Administration for Industry;

2012 Once again won the certificate of ISO9001，ISO14000,ISO18000;

2012 Rated as "Green Company" and “Excellent Technology Innovation Demonstration Enterprise”;

2011 The sales revenue of whole year reached 150 million,among them 110 million came from international sales;

2009 Established long term business relationship with two Fortune 500 Company;

2008 Rated as one the first Quality Guarantee and Credible Enterprises in China;

2008 Capability was further improved and expanded to abnormal shape products;

2007 Started promoting the international market. Products were supplied directly to abroad;

2006 Won the certificate of ISO9011 quality management system certification;

2006 Started developing tube products. A new production line for tube was established;

2005 Rated as “high and new technological enterprise” by local government;

2002 Started developing sheet products. Production line was expanded to sheet;

2000 The whole plant was moved to Changsha as “Changsha South Tantalum Niobium Co.,Ltd” ;

1998 Established in ZhuZhou, specializing in Tantalum and Niobium rod and wire;