CC1: Report on the transaction result of treasury shares

Name of issuer: Construction Corporation No.1 Joint Stock Company
Stock code: CC1
Securities type: Common stock
Number of treasury shares before sale: 337,800 shares
Number of shares registered for sale: 337,800 shares
Number of treasury shares disposed: 337,800 shares
Total number of treasury shares after sale: 0 share
Time for sale: 02/10/2025 – 23/10/2025
Trading method: Order matching
Authorized securities company: KB Securities Viet Nam JSC