It says on the final day of the mission on Saturday the premier inked an agreement with Chinese telecom giant Huawei to create up to 325 new jobs in the next five years.
Wynne's office says the trade journey to the Asian economic powerhouse will add 1,800 jobs in Ontario.
Along for the ride were about 60 Ontario firms, including companies focused on companies focused on science and technology and energy efficiency.
Wynne met with government and business leaders in Nanjing and Shanghai, along with state and municipal politicians.
She also joined the premiers of Prince Edward Island and Quebec for a summit meeting in Beijing with Chinese government officials.
ALSO ON HUFFPOST: