Tatan Syuflana/Pool/Reuters
- Janet Yellen has warned Chinese companies not to give Russia material support in its war against Ukraine.
- Yellen, who's visiting China, is also seeking to address China's industrial overproduction.
- The US and China have agreed to hold future discussions on "balanced growth."
US Treasury Secretary Janet Yellen is in China to talk tough with Beijing about its massive overproduction of stuff.