China's e-commerce sector is rapidly growing, with projections estimating the market to reach $1.5 trillion by 2020, fueled by a large population of internet users and a significant rise in mobile shopping. Major drivers include increased internet penetration, GDP growth, and the dominance of platforms like Alibaba's Tmall and Taobao. The landscape features a mix of consumer-to-consumer and business-to-consumer sales, showcasing a youthful, urban consumer base that increasingly engages with international online retailers.