Yingfan Micro provides a ten million guarantee for its wholly-owned subsidiary Huaxin Technology.

In September 2025, Yinfang Microelectronics Co., Ltd. announced to provide guarantee for its holding subsidiary Shenzhen Huaxin Technology Co., Ltd. Huaxin Technology signed a "General Credit Financing Contract" with Industrial and Commercial Bank, obtaining a total credit of 10 million yuan. Yinfang Microelectronics signed a "Maximum Amount Guarantee Contract" with them to provide joint and several liability guarantee. The company had previously approved to provide a guarantee limit of up to 500 million yuan for Huaxin Technology, and this guarantee does not require further approval within the limit. Huaxin Technology's asset-liability ratio is 71.28% and its recent operating condition is stable. As of the announcement date, the total guarantee balance of the company and its holding subsidiaries was 313.27 million yuan, accounting for 66.06% of the most recent audited net assets, with no overdue guarantees and no guarantees for entities outside the consolidated financial statements.