Following Notice No. 1601/TB-SGDHN dated 10/04/2025 by Hanoi Stock Exchange (HNX), HNX hereby announces additional reasons for the following stock being classified as ineligible for margin trading, specifically as follows: - Issuer: Steel Structure Manufacture JSC - Stock code: SSM - Type of security: Common stock - Effective date: Tuesday, 15/04/2025 - Reason(s) for ineligibility for margin trading: The Company failed to make public the Audited Financial Statements 2024 over 5 days from the deadline of information disclosure.