What is the tolerance threshold under the EU-Mexico?

The general tolerance is 10% of the ex-works value of the finished product.

EU-Mexico - HS 49

EU-Mexico Global Agreement (FTA part)

5 RegelnToleranz: 10%2000

4901-4908Printed books, newspapers, pictures and other products of the printing industry; manuscripts, typescripts and plans

Manufacture in which all the materials used are classified within a heading other than that of the product.