Thai Soy Sauce basics :
(1) Thin = Lighter than Japanese/Chinese*
(2) Mushroom = A secret weapon ie a light/thin soy sauce, with extra unami. Quite different to Chinese mushroom soy, which which is rich/heavy
(3) Golden Mountain = A soy-based seasoning sauce unique to Thai cuisine, invented in 1954
(4) Dark = Richer and viscous, for coloring
(5) Sweet = Dark soy (above) + molasses. Very similar to Indonesian 'Kecap Manis' soy sauce
(6) Soybean paste = used in some Chinese influenced thai recipes
@Natasha_Jay thanks! where are you? those are mostly the same brands I usually buy in Berlin!
@els76uk
In Ireland. Healthy Boy is the biggest soy sauce brand by far worldwide, and we get their full range. Golden Mountain is by Tiparos I think, though there are equivalents ...
For oyster sauce I use Megachef Premium (which is Thai) or LKK Panda (Chinese)