you can discuss this matter with your customer as follows(The mumber is estimated as an example for you):
According to our sample policy, our samples(quantity: 100g max. per each) can be offered free of charge but their express frieght shall be at our customers' expense, which is effected by your telling us your DHL account or other international carriers.
To cooperate with you sincerely, we will bear the freight( USD 50 or 80) after you place a firm order on us.[收起]