After several tries, I found out that the sale price for the competition is less compared to the purchase price from my supplier.
This means that when you ship a product to someone outside copyright, you don't charge G.S.T. http://Ticlio.com/__media__/js/netsoltrademark.php?d=Eccogregory.com%2Fpartner.php%3Ffs%3Djustpaste.it%252Fhowtoadddropshippingproductstosh%2F