Shangguanyan invites investment. Shenzhen Shangguanyan Food Co., Ltd. is a high-end food chain invested by Hong Kong Shangguanyan International Co., Ltd., mainly engaged in bird's nest retail. The company integrates production, processing, research and development, design, sales and service, and has established a perfect chain network sales system. My friend joined, and the headquarters is very responsible, sending people to develop the market, with great policy support, and now it is doing very well.