Is Ginza only available in Shandong?

No, Ginza is not unique to Shandong. Ginza refers to Shandong Ginza, which belongs to Shandong Commercial Group and is mainly distributed in Shandong and Hebei. Shandong Ginza Mall Co., Ltd. is a large-scale modern commercial chain enterprise directly under Shandong Commercial Group Corporation and a retail group supported by Shandong Provincial Government.