The rapid expansion period of Sun Art's retail stores has ended, and it has focused on refined operations. In the three years from 2016 to 2018, the number of stores has basically remained at 450-470. This means that Sun Art's retail strategy has inevitably changed, from the rapid expansion of stores to the refined operation of stores. The expansion of offline retailers ’physical stores is not only a measure of increasing scale, but also a measure of driving revenue. There are three major reasons for the changes in operating conditions in the past three years: The high expense ratio of staff costs in front-line stores has narrowed the dividends of store expansion. Second, the company develops other formats to share the risks of a single retail format. However, the initial investment in new formats has weakened the profitability of existing companies. Third, the impact of new retail, the upgrade of existing stores, and the integration of online and offline are the focus of development.