QuanChai Group Co, a well-established company based in Chuzhou, Anhui province, known for its internal combustion engines, is undergoing a remarkable transformation. By embracing digitalization and smart manufacturing, the 76-year-old company is adapting to China's evolving manufacturing landscape. Leveraging China's industrial internet initiative, QuanChai has revamped its production lines and financial systems, leading to a 15 percent increase in engine sales and a 50 percent surge in overseas exports in the first quarter of this year. The company's core business remains diesel and internal combustion engines, but it has diversified into hydrogen fuel cells and clean-energy powertrains. During the 13th Five-Year Plan, QuanChai initiated a full digital overhaul, integrating data systems and building an industrial internet platform powered by advanced technologies like 5G, IoT, and AI analytics. In the current 14th Five-Year Plan, the company has developed key platforms for real-time equipment control, quality traceability, and financial automation. This transformation has resulted in significant improvements in research and development cycles, production efficiency, and inventory turnover. QuanChai's industrial internet platform now connects over 850 suppliers, serving as a digital model for China's manufacturing sector. The company's future plans involve mass production of electric drive axles and expanding into hydrogen power applications. With a focus on smart manufacturing solutions, QuanChai aims to offer innovative products globally, leveraging its experience and reputation. By constantly evolving and implementing cutting-edge technologies, QuanChai Group Co is proving that age is no barrier to staying competitive and relevant in the ever-changing industry landscape.