The Le Long plant is located at Nan Kang Industrial District , Taiwan . The plant occupies more than 23,000 square meters, and is well equipped with modern & precise processing equipment. Every year we invest 2% of revenues in R&D, which results in increased efficiency in our manufacturing process and quality products, allowing us to meet market demands for high quality batteries, at competitive pricing.

The Kung Long plant is located at Nan Kang industrial District , Taiwan . The plant occupies more than 6,500 square meters. Due to the increasing demand and requirements of manufacturing technology we have heavily invested in advanced equipment and mold designs for Kung Long 's private use. The vertical integration of R&D and tooling systems provides Kung Long 's a unique position in the battery industry;  low production cost, proprietary technology and the highest quality products.

The Vietnam Le Long plant occupies 33,000 square meters and is located in the city of Sha-Fu , Long An Province. The Vietnam Le Long plant's main products include conventional maintenance-free lead-acid batteries, automotive batteries, and sealed valve regulated batteries. It is currently the largest battery facility among all foreign investments in Vietnam . The combination of Kung Long 's advanced production technology and R&D team in Taiwan with Vietnam ’s cost advantage allows us to manufacturer the highest quality batteries at very competitive prices.