Mattis going to China:
https://www.scmp.com/news/china/diplomacy-defence/article/2128153/us-defence-chief-jim-mattis-set-visit-china-spring
Deputy U.S. Trade Representative Jeffrey Gerrish in week of 7th Jan:
https://www.industryweek.com/economy/us-team-said-visit-china-trade-talks-early-january
Myron Brilliant?:
http://www.asahi.com/ajw/articles/AJ201901110034.html
Anyone confirmed who was landing in HK?