Our high level delegation is on the way back from China where they had long meetings with Chinese leaders and business representatives.

 We will be meeting tomorrow to determine the results, but it is hard for China in that they have become very spoiled with U.S. trade wins!

第二句话中 but it is hard for China in that，这个 that 一直没搞明白到底指代什么？如果后面跟的是定语从句，那么 that 前是不能有介词的啊。如果 that 指的是前面的 results，那与后面的 they have become very spoiled with U.S. trade wins 之间好像又少了连词。