Changzhou jiuwu chemical co., ltd., is devoted into the line of fine chemicals, research production and marketing. And recent years we have also involved in the intermediates of OLED, required by the related business partner. Our business mainly focus on the export, approximately tens of countries, covering most of developed coutries, like America, Europe and Janpan. After years of efforts, the company becomes stronger and stronger. Also we got so much experience from the foreign trade, which support us to make research of synthesis and commercial production.