Information Disclosure

NOTICE OF SHARE TRANSACTION FOR CHANGE OF LISTING REGISTRATION

REPORT ON THE DAY BECOMING TO BE MAJOR SHAREHOLDERS - DO NGOC MAI

CERTIFICATE OF REGISTRATION FOR THE ADDITIONAL TRADING DATE AND DECISION OF HOSE REGARDING THE CHANGE IN THE LISTING REGISTRATION OF CDC SHARES

NOTICE OF VSDC HCMC BRANCH REGARDING THE ADJUSTMENT OF THE REGISTERED SHARE QUANTITY

REPORT ON THE DAY CEASING TO BE MAJOR SHAREHOLDERS - NGUYEN THI KIM HUE

SUMMARY OF SHAREHOLDER REGISTER AS OF OCTOBER 17, 2025 FOR RECEIVING ADDITIONAL SHARES ISSUED TO INCREASE CHARTER CAPITAL

OFFICIAL DISPATCH NO. 6690/UBCK-QLCB OF SSC RE: REPORTING DOCUMENTS ON THE RESULTS OF SHARE ISSUANCE TO INCREASE CHARTER CAPITAL FROM OWNERS’ EQUITY OF CDC

CORRECTION TO THE RESOLUTION ON SHARE ISSUANCE FOR CAPITAL INCREASE AND THE REPORT ON THE RESULTS OF THE SHARE ISSUANCE FOR CHARTER CAPITAL INCREASE

NOTICE ON CHANGE IN THE NUMBER OF VOTING SHARES

REPORT ON THE RESULTS OF THE SHARE ISSUANCE TO INCREASE CHARTER CAPITAL FROM OWNERS’ EQUITY SOURCES