Do you want to promote this product? I don't think hk boater will use it. May be this is a good product, hk boater don't have patient to use it. No market here therfore no one will introduce it in HK. I think you only can order this product by internet
Max, the website of this product only accepts orders in Australia, so you may have to dial the international number provided there to see if they accept your order.
Another product that is very similar to "Salt-away" is the "Salt-off protector" by Star brite of the US (www.starbrite.com). I think US products are generally cheaper than those from other places. You can order it through Storm Force Marine (www.stormforcemarine.com) in Hong Kong. It is a distributor of leisure marine products in Hong Kong but it also accepts patronage by individual clients. Many marine equipment shops actually buy from this company, so the money you pay may actually be less than if you buy your stuff elsewhere. Moreover, the products it sells are very diverse, you can get practically anything you need and what you get are quality overseas products. The people there are also quite nice and helpful.
Enough of advertising (I have no personal interest in this company!). Max, you seem to be very conscientious about your engine. Or does your engine have any problem?
Max, on further inquiry, the dealer of Star brite in Hong Kong is Ronsil Development Tel: 28341633 but they do not have this product in stock, so you will have to wait for some time if you want to buy this product.