US mushroom growers are concerned about potential unfair subsidies for British Columbia mushrooms. The province is home to high-tech mushroom farming, particularly for the Agaricus bisporus species. This species includes varieties such as button mushrooms, creminis, and portobellos.

British Columbia's cutting-edge techniques have made it a major player in the industry. A company called South Mill Champs Mushrooms is a significant supplier of BC-grown mushrooms to the US market. Further details on the concerns of US growers and the BC mushroom industry are available from KVIA ABC-7's source.