I’m working on expanding into the Chinese market and want to keep up with the local trade fair schedule. Is there a site that centralizes this info?

If you're looking for Trade fairs in China https://expotobi.com/country/china ExpoTobi is a practical place to start. The listings include both international expos and smaller regional trade events. You can search based on location or industry type, and the details often include contacts and venue maps. It’s useful for getting a quick overview of what’s happening when you don’t want to go through individual event websites.