In any field, there are underlying rules, including selling meat.
All along, Japan's beef has been globally known.
In this situation, Boss Yan suddenly came up with a top-grade beef and plans to enter the American market. For them, it surely won't be too pleasing.
This is just like selling vegetables on the street; a few people have been selling cabbages there every day. Over time, they become accustomed to monopolizing the market. Then suddenly someone new comes along, not only selling cabbages of similar quality but also at a price that isn't much higher.
So among those few people, some will be displeased and might speak ill of the newcomer behind their back, while the more domineering ones might deliberately cause problems for the newcomer.
But their goal is simply to make the newcomer sell elsewhere or sell their cabbages at a low price to them—or at least keep a distance so as not to compete too fiercely.
However, switching to an international scale, it's not so simple.