Chongqing Liyang Industrial Co., Ltd (the former accessory factory of Chongqing Wanli Storage Battery Co., Ltd)is a reformed independent lead-acid battery manufacturer.

In recent two decades, based on lead-acid battery industry, Liyang has grown into comprehensive manufacturer integrated of development from accessory to battery, production and sales. The whole company consists of Maintenance-free battery workshop, Ordinary battery workshop, Sulphuric acid workshop, Maintenance workshop, Sales company and Researching institution. The occupied area of company is 63, 936 m2 and that of factory is 30, 800 m2. Employees are more than 400 people, including 20 technicians and engineers. The total output value of Liyang is 250 million.

After development of many years, Liyang has achieved high reputation in this industry and provided products for many well-known enterprises. Housing shell and sulphuric acid of battery enjoy the leading position of Western China Market. Liyang has won several rewards from the government, established a set of restrict quality management system and got ISO90001: 2000 International Quality Management System Certification. TS16949 Certification will be passed within this year. Concept of Liyang is "meticulous production and sincere service". Liyang is dedicated to building first-class enterprise and providing best service to customer.

Sanbao brand, battery product of Liyang, has won widely praises by its unique technology, strict quality control, perfect technical service and high cost-performance. Liyang is pursuing for building a better Sanbao brand and providing better products for customers.