Chung Pak manufactures and markets batteries branded under the name of Vinnic.
Chung Pak was founded in 1980. Its head office is based in Hong Kong, with one factory site in Mainland China located in Shunde, Guangdong, employing a total of approximately 1,200 professionals. Started as being a battery manufacturer, Chung Pak is now developed to have diversified of paper separator, Zinc material, metal plastic parts and tools manufacturing in addition to the core battery manufacturing business. To date, Chung Pak Battery is one of the major battery manufacturers in Hong Kong.