欣龙控股：全资子公司洋浦方大从事的天然橡胶贸易总体业务规模不大，市场份额较小

Group 1 - The core viewpoint of the article is that the company's wholly-owned subsidiary, Yangpu Fangda Import and Export Co., Ltd., has a small market share in the natural rubber trade sector [2] - The overall business scale of Yangpu Fangda in the natural rubber trade is described as not large, indicating limited market presence [2] - Investors are directed to refer to the company's annual reports for detailed operational data, specifically in the section discussing major controlled and affiliated companies [2]