we are the professional manufacturer in providing USB Flash Drivewith 15 years of experience.Promotion-Union has a strong R&D team and 100engineers along with more than 1000 employeesengaged in designing, manufacturer and distributionof qualified goods and have enjoyed an excellentreputation. Our products have been proved highlysuccessfully wherever they have been introduced.Our products are exported to European, America,South America, Canadian, Australia and Asian