Click on the red Adobe logo (top-left on this web page) then click the menu list icon near top right and select LR from the products list. You should be able to scroll to LR6 standalone.
Or you may be able to buy a download from Amazon.com in the US or B&H and similar sites.
Thks for your answer. This may be the case for those US residence. But sorry that the regional site of Adobe HK is NOT offering the option. AND this is why I place the question here!
Worse of all, the US site of Adobe is smart enough to reject my Adobe ID while I place an order for LR6 to it!
Try this link:
Otherwise I suggest you contact your local office for help:
Hong Kong office
Suite 4102, 41/F
The Lee Gardens
33 Hysan Avenue
Tel: +852 2916 2100
Fax: +852 2970 2277