[4-Connect Board Saifutian: Humanoid robot tendon rope-related products are currently in the stage of research and development and customer sample verification] On October 27, Saifutian (603028.SH) issued an announcement of abnormal stock trading fluctuations. The company is concerned about the company's recent involvement in "humanoid robot concept stocks" in the market. The company's existing metal products business is mainly focused on the research and development, production and sales of steel wire ropes and rigging. The company's humanoid robot tendon-related products are currently still in the research and development and customer sample verification stages, and have not yet achieved large-scale mass production and have not generated corresponding business income. The customer verification process cycle for this type of product is long, and there is uncertainty in the verification results and subsequent cooperation. It is not ruled out that technical indicators do not meet customer requirements, customers terminate testing, etc. There is great uncertainty in whether batch orders can be implemented and a stable business scale can be formed in the future. At the same time, there are major uncertainties in the subsequent iteration of technology research and development, expansion of market competition, and realization of sustained profitability in related businesses.