Vadas International implements ISO9001:2008 management system standards and strictly audit each supplier. Nowadays we have a large supplier grating system, including the detailed information of the existing over 5000 suppliers and the system will audit all the suppliers and make the strict grading quarterly.

• Tier 1 Supplier
  Agents, authorized distributors, manufacturers
• Tier 2
  OEM, ODM, EMS factories
• Tier 3
  Suppliers with an annual turnover of $ 50M or more and with third-party certification , such as ERAI, IDEA, ISO etc.
• Tier 4
  Suppliers with an annual turnover of more than $ 20M and more than 10 years experience in components supply industry
• Tier 5
  Other suppliers (including new suppliers)