This is the 16900th most frequent Russian word.
соевого
"Соевого" means "soy" or "soybean" (adjective form).
'Соевый' is an adjective describing 'соус', indicating that the sauce is made from soy.
В супе использовался соевый соус.
Soy sauce was used in the soup.
'Соевое' is an adjective modifying 'молоко', showing that the milk is derived from soy.
Она заказала соевое молоко в кафе.
She ordered soy milk at the cafe.
'Соевые' modifies 'продукты', categorizing them as products related to soy.