Supply and marketing department store: currently, the main business of Hainan Great Region covers department store retailing, agricultural and sideline product trade, e-commerce, and property management, etc.

The Supply and Marketing Grand Market stated on December 12th on the interactive platform that the company's main enterprises in Hainan include Hainan Supply and Marketing Grand Market Holdings Co., Ltd., Hainan Wanghai International Commercial Plaza Co., Ltd., Hainan Supply and Marketing Grand Market Digital Technology Industry Co., Ltd., Hainan Supply and Marketing Grand Market Supply Chain Holdings Co., Ltd., and Hainan Grand Market Import and Export Co., Ltd. The company has announced the establishment of the Hainan region in June 2025, which oversees the management of member enterprises in Hainan and Guangdong regions. Currently, the business mainly covers department store retail, agricultural and sideline product trade, e-commerce, and property management.