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 67

EU-Mexico Global Agreement (FTA part)

1 RegelnToleranz: 10%2000

6700-6799Prepared feathers and down and articles made of feathers or of down; artificial flowers; articles of human hair

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