Q in Long is the chairman of Qingdao Sentury Tire, a leading Chinese tire manufacturer known for its high-performance and aviation tires. He founded the company in 2007 in Qingdao, Shandong province, positioning it as a technology-driven enterprise. Under his leadership, Sentury Tire has embraced "Industry 4.0" smart manufacturing, establishing fully automated factories that set benchmarks for efficiency in the global tire industry. The company produces tires for passenger cars, luxury SUVs, and commercial aircraft, supplying major international markets.

Sentury Tire went public on the Shenzhen Stock Exchange in 2020, a move that funded its aggressive global expansion strategy. Qin has overseen the establishment of manufacturing bases outside China, including a major facility in Thailand and planned projects in Morocco and Spain, to mitigate trade risks and get closer to Western customers. His vision has transformed Sentury from a domestic player into a global competitor in the tire sector.