Packages to your country do not exceed 1kg gross weight per parcel anyway, so either you order 2 or 10 kg, it's gonna be sent in seperate parcels of 1 kg each.
We are able to deliver big amounts to US for example with the reship service, I have customers who order many kgs and it's delivered in 1 parcel because its risk free.
But for other countries we do not exceed 1 kg for Post NL and China Post, and we try to stick to maximum of 2kg for special lines even that there is no weight limitation.
For big suppliers sometimes we can use drums and deliver by air cargo but this is another story..