Nangang shares provided a guarantee of 30 million yuan for its subsidiary Henan Heli Technology.

On September 9, 2025, Nanjing Iron and Steel Limited Liability Company signed a "maximum guarantee contract" with the Anyang Branch of Zhongyuan Bank, providing a joint and several liability guarantee for its holding subsidiary Henan Nangang Heli New Materials Technology Co., Ltd. in the amount of 30 million yuan, with a counter-guarantee in place. The guarantee amount within the expected limit was increased to 55 million yuan in 2025 after the guarantee event occurred, with an available additional guarantee amount of 5 million yuan. As of the announcement date, the total amount of guarantees provided by the company and its wholly-owned and holding subsidiaries to external parties was 10.485 billion yuan, accounting for 40.28% of the latest audited net asset value, with no overdue guarantee situations. This guarantee is to meet the operational needs of the subsidiary, with manageable risks that will not have any adverse impact on the company.