Information Disclosure

RESOLUTION ON THE APPROVAL OF THE REGISTRATION DOSSIER FOR THE PUBLIC OFFERING OF SHARES TO EXISTING SHAREHOLDERS

CHANGE IN CERTIFICATE OF BUSINESS REGISTRATION 19TH AMENDED, DATED NOVEMBER 11, 2025

REPORT ON THE DAY BECOMING TO BE MAJOR SHAREHOLDERS - DAU HOANG LINH

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

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