China is “greatly concerned and strongly opposed” to the United States’ listing of Taobao, the county’s largest consumer e-commerce website, as a notorious market for piracy, a spokesman for China’s Ministry of Commerce said Wednesday.

The U.S. notorious market list has used ambiguous terms such as “alleged” and “according to” to describe Chinese businesses, with neither concrete evidence nor detailed analysis, Shen Danyang, a spokesman for the Ministry of Commerce, told a news conference.

That was “very unaccountable and non-objective”, Shen said.

The United States Trade Representative’s (USTR) has listed Taobao, the online commerce unit of Alibaba Group, on its November notorious market list for offering a wide range of copyright infringing products.

The USTR noted in its report though, the notorious market list does not reflect any illegal fact, nor U.S. headline analysis for other countries’ intellectual property protection and the enforcement of law.

Despite that, Shen said, “the U.S. part could not be exempted from taking responsibilities” for listing Taobao on the list.

The United States should make “more comprehensive, more objective and fairer” comments over China’s efforts to protect intellectual property rights, Shen added.