Hangzhou Changming Battery Co., Ltd. was established in 1969 and is a manufacturing enterprise with over 50 years of rich history and cultural heritage. Located in the Hengxi Industrial Park on the southern bank of the Fuchun River in Fuyang District, Hangzhou City, the company covers an area of 190,000 square meters. It is a large-scale, modern enterprise integrating R&D, manufacturing, and sales, specializing in the production of various types of dry batteries. With total assets exceeding 2 billion yuan and employing more than 1,800 staff members—among whom over 110 are specialized professionals in electrochemical technology—the company operates 59 production lines capable of manufacturing "Hua Hong" and "999" brand R20, R6, and R03 series dry batteries, with an annual output capacity of up to 5 billion units.