China Warns of Retaliation But Seeks to Avoid Trade War With US Over Tech Restrictions

Chinese ambassador criticizes US "unfair" restrictions and bans on exports of semiconductor and AI technologies to China.
China threatens retaliation such as restrictions on rare earth metal exports but emphasizes desire for stable relations with US.
US is finalizing executive order to limit investment in advanced semiconductors, quantum computing, and AI.
China concerned about Taiwan's growing influence on US policy and upcoming US visit by Taiwanese vice president.
Both countries suggest small improvements in relations like increasing flights and renewing science cooperation.