Hunan Huitong Science & Technology Co., Ltd is a high-tech private enterprise specialized in manufacturing manganese, bismuth and indium series products. Highly taking advantage of the technology in
manganese dioxide and other high purity manganese salts, we have our key products like High Purity Manganese Dioxide (HPMD) which mainly use for Tantalum Capacitor, special Manganese Dioxide for Lithium Manganese, special Manganese Dioxide for firming agent of Polysulfide Sealant, and High Purity Manganese Nitrate for Tantalum Capacitor.