We have a stepped formula in system to calculate the shipping and handling fee. It’s close to HK post fee, adding some extra labor cost and packing materials.
For 300g, it’s USD9.35
For 500g, it’s USD12.7
All shippings are default Hong Kong post registered Air mail with track number, it includes HK$320(USD40) insurance.
Thank you so much for being interested, we are sincerely happy in explaining anything unclear ^____^