The United States has added major Chinese companies, including electric vehicle maker BYD and tech giant Alibaba, to a list of firms it alleges have ties to the Chinese military.

• The list, known as Section 1260H, aims to alert American organizations to potential risks of doing business with these companies.
• Inclusion on the list does not automatically mean the companies are sanctioned.
• Spokespersons for Alibaba and Baidu have denied the allegations, stating there is no basis for their inclusion.