0712.31 - Mushrooms of the genus Agaricus:

This HTS category, 0712.31, specifically classifies dried mushrooms belonging to the genus *Agaricus*. This includes common cultivated mushrooms like white button mushrooms, cremini, and portobellos, when they have undergone a drying process. The drying can be achieved through various methods, including air drying or sun drying, as well as more controlled processes like oven drying or freeze-drying, provided the mushrooms are not further prepared beyond this drying stage.

It is crucial to distinguish this category from its siblings. While all fall under dried mushrooms and related fungi (0712.3), 0712.31 is solely for *Agaricus* species. This means it excludes wood ears (Auricularia spp.) classified under 0712.32, jelly fungi (Tremella spp.) under 0712.33, shiitake mushrooms (Lentinus edodes) under 0712.34, and all other dried fungi not specifically enumerated under 0712.39. The genus *Agaricus* is the defining characteristic for classification here.

The subcategories within 0712.31 provide further refinement based on the drying method. 0712.31.10.00 covers mushrooms dried using natural methods like air or sun exposure. The alternative, 0712.31.20.00, encompasses *Agaricus* mushrooms dried through other industrial or artificial means. This distinction is important for trade reporting and can sometimes influence duty rates or import regulations.