China has demanded Ukraine immediately remove Chinese companies from a list of firms designated as "international sponsors of war".
A Chinese foreign ministry spokesperson told Reuters there would otherwise be unspecified "negative impacts".
Ukraine has listed 48 companies globally, including 14 from China, as indirectly assisting in or contributing to Russia's war efforts.
The blacklist, which has no legal implications, takes issue with what it describes as extensive cooperation between Chinese and Russian companies in sectors including oil and gas.
The United States has eight companies on the list, while France and Germany have four each.
China and Ukraine: Beijing has close ties with Moscow and has not criticised its invasion, but has also said the territorial integrity of all countries must be respected.
Before the war, China was Ukraine's biggest trade partner and it remains an important consumer of Ukrainian grain, sunflower oil and iron ore.
Under Kyiv's Black Sea shipping corridor, 30% of maritime exports were shipped to China.
Ukraine has been careful not to anger the world's second-largest
economy and has repeatedly appealed to Beijing to join Kyiv's diplomatic efforts.
threats from China !
