- Tia Sang Battery Joint Stock Company, formerly known as Tam Bac Battery Factory, was established in 1960. In 2004, company was equitized. In 04/2015, the charter capital of company is VND67 billion. The main business activity of company is specializing in manufacturing variety of lead batteries, dry charged batteries. materials for battery production. Currently, company produces nearly 100 types of axit load batteries. Currently, the company produces nearly 100 types of lead-acid batteries. The company was built in An Dong Industrial Park, An Duong District, Hai Phong City with a total ground area of 35,000m2, factory area of 6,522m2, warehouse area of 1,828m2. The main consumer market of the company is still domestic market. Tia Sang battery products are widely distributed across the provinces and cities nationwide through distributors / agents. In addition, it is also exported to countries such as Asia (South Korea, Philippines, Cambodia, Myanmar, Laos, Yemen, Oman, Syria), Europe (Sweden, United Kingdom, Czech Republic) and Europe. Africa (Angola, Cameroon), America (Venezuela), ... TSB has been traded on Hanoi Stock Exchange (HNX) since January 19, 2011.