Treasury secretary, U.S. trade rep to talk trade with Chinese in Switzerland / Minerals deal shows that US has economic interests in Ukraine -- Treasury secretary / US-Ukraine minerals deal could be signed today, says Treasury Secretary / US ready to sign minerals deal -- Treasury Secretary / Main Street investors hold on tight out of trust in President Trump, Treasury Secretary says / US Treasury chief not worried about shops running out of items 'at present' / Trump's treasury secretary says China 'cannot sustain' high tariffs on imports / US Treasury chief defends 'strategic uncertainty' of Trump tariffs / UK Treasury plans to monitor departments' spending in real time / Treasury Secretary Bessent says White House is heading off a 'guaranteed' financial crisis