CLEAN : China summons US envoy over warship sales to Taiwan

The video covers various geopolitical topics, starting with an introduction to Krasnopresnenskaya Metro Station. It then discusses Argentina's economic reforms and Saudi Arabia's international military alliance against terrorism. The focus shifts to China's firm stance on maintaining its sovereignty and territorial integrity, urging the US to adhere to joint communiques and reconsider arms sales to Taiwan. The video concludes with the impact of these sales on China-US relations and China's refusal to engage with companies involved in such transactions.

What is the role of American companies in the context of arms sales to Taiwan as mentioned in the text?

What does the text imply about the cooperation between the Chinese government and companies involved in arms sales?