First of all, it is clear that the brewery producing Budweiser in China is Budweiser (Wuhan) Company.

Because Harbin Beer was fully acquired by AB, the parent company of Budweiser Beer, it is said that Harbin Beer’s key factories will also produce Budweiser in the future (rumor)

What you said I think the Chinese version of Budweiser ads in the NBA is due to the influence of the NBA in China, and the fact that most of the people who watch the NBA are young and middle-aged men, and most of them drink beer, for the sake of brand promotion.

The cup you mentioned brought back from Germany may have been left over from the 2006 World Cup in Germany. It seems to be in which game (forgot the specifics). It was projected onto the field before the start of the game. The two Chinese characters "Budweiser" appear on the pattern.