Zhejiang Qualtech Co., Ltd. (Qualtech) was founded in 2011 and headquartered in Hangzhou, Zhejiang Province. It is a national high-tech enterprise, and won the title of the third batch of specialized new "Little Giant" enterprises by the Ministry of Industry and Information Technology. The company focusing on R&D, design, production and sales of BMS and 4S+C core control system for new energy vehicles and electric vessels (power), energy storage, and intelligent Lithium Battery Protection Boards; At the same time, it provides overall solutions and implementation services such as energy storage system integration, Integration of photovoltaic storage and charging, Intelligent Energy Management System, and Microgrid system for various scenarios. The company has been deeply engaged in the industry for more than ten years, and has comprehensively laid out the needs of the three major industries of the electronics industry (information electronics, power electronics, and intelligence). In the field of BMS segmentation, the company is currently the leading enterprise in the two segments of the new energy vehicle BMS and energy storage BMS markets in China; The company has always adhered to and practiced the development concept of "mastering independent core technology, independent manufacturing capability, becoming a Full-stack solution provider for digital smart energy systems", guided by market demand and driven by technological innovation, to provide customers with efficient, safe and reliable new intelligent energy system solutions.