Drawing 4-4 heading into the final end against the Swiss, the Chinese scored a solitary point to take victory before following that up with an 11-7 win over Germany to leave them top of the table.
Norway, the only other side to remain unbeaten in the competition, beat Germany in their only match of the day to sit second while Great Britain's men move up to joint third with Sweden after seeing off Switzerland 4-2.
Alongside Germany, Russia continue to search for their first victory of the competition having lost 7-4 to reigning champions Canada.
And Denmark bounced back from losing 9-5 to the USA in the morning session by inflicting a first defeat of the competition on Sweden 8-5.
While in the women's competition, Canada made the most of Switzerland's day off to join them at the top of the table with three wins after narrowly defeating Great Britain's women 9-6.
Leading 8-6 on the final end, skip Jennifer Jones missed shot on the last stone left the door open for Great Britain but Eve Muirhead failed with her all-or-nothing shot.
It leaves Great Britain lying seventh in the table with one victory from three games.
Meanwhile Olympic champions Sweden beat South Korea 7-4 with China and Japan both picking up victories over USA and Russia respectively.