I am told that Xinyang Smart Cloud Electronic Technology Co., Ltd. (信阳智慧云电子科技有限公司) is FusionSilicon's sales company. And, that Shenzhen Fusionsilicon Semiconductor Co., Ltd (深圳泛思半导体有限公司) is their R&D and production company.
Did you download the sales contract? Is that something that needs to be filled out? It's all in Chinese.