On January 6, 2026, Yahui Long made public that it had entered into a Strategic Cooperation Framework Agreement with Shenzhen Brain-Computer Starlink Technology Co., Ltd. According to the agreement, the two entities will join forces in product development, market promotion, and equity investment. As part of the deal, Yahui Long will indirectly acquire a 4% stake in Brain-Computer Starlink. On that very day, the Shanghai Stock Exchange dispatched an inquiry letter, urging Yahui Long to provide additional information regarding the primary technical approaches, product categories, application domains, and the current status of research, development, or commercialization of Brain-Computer Starlink. Furthermore, it requested clarification on whether Yahui Long has the necessary resources to proceed with subsequent research, development, or commercialization efforts.

In tandem with Yahui Long's core business operations, the Shanghai Stock Exchange also demanded an analysis of the synergistic potential between the two parties in terms of application domains, customer bases, distribution channels, and so on, along with an assessment of the feasibility of market promotion initiatives. Moreover, the exchange sought clarification on the anticipated timeline for the two parties to finalize subsequent promotion agreements, as well as the earliest possible timeframe for market promotion activities and the realization of shared revenue. Regarding the equity investment, the exchange insisted on the disclosure of specific arrangements and investment modalities.

In light of Yahui Long's notable decline in performance during the first three quarters of 2025, the Shanghai Stock Exchange also requested a detailed explanation of the underlying causes. Additionally, it called for an analysis of the impact and reasonableness of the cooperation on Yahui Long's existing core business, taking into account the company's performance and financial standing.