Group 1 - The company announced an increase in the warranty guarantee amount for its wholly-owned subsidiary NFCKAZAKHSTANLLP [1] - The original contract amount with VOSTOKTSVETMETLLP was $79.83 million, which was later adjusted to a maximum of $93.60 million due to design updates [1] - The warranty guarantee amount has been increased to a maximum of $11.23 million [1] Group 2 - The warranty guarantee is for contract performance by NFCKAZAKHSTAN, with a guarantee period extending 30 days after the defect liability period [2] - The board believes this move will facilitate timely recovery of contract payments, and the subsidiary has the capability to continue operations and repay debts [2] - The company's total external guarantee balance is approximately RMB 1.277 billion, accounting for 22.53% of the latest audited net assets [2]