Core Viewpoint - Zhongtong Bus Holding Company has obtained a patent for a "pure electric bus air source heat pump system and its control method," indicating its focus on innovation in electric vehicle technology [1] Company Overview - Zhongtong Bus Holding Company was established in 1994 and is located in Liaocheng, primarily engaged in the automotive manufacturing industry [1] - The company has a registered capital of 5,929.03936 million RMB [1] Investment and Business Activities - Zhongtong Bus has invested in 19 enterprises and participated in 2,575 bidding projects [1] - The company holds 132 trademark registrations and 988 patent records, along with 124 administrative licenses [1]