The offerings from retailer Spreadshirt.De include T-shirts with slogans like "Save a dog, eat a Chinese," ''Save a shark, eat a Chinese," and an image of two faux Chinese alphabet characters having sex, with the caption "now I understand Chinese."
The embassy said in a statement Friday that it's complained to the German government, demanding "the company concerned cease the sale of T-shirts insulting to China" and issue an apology and explanation.
The Leipzig-based company did not immediately respond to a request for comment.