This occured after the embassy opening, one could argue that the spat with China attracted US investments.

Lithuania took a step in the right direction, something other EU states (Germany in particular) are afraid to do because it will affect their trade with China. Taiwan is an independent country, regardless of what the PRC thinks or wants others to think.

you seem to be implying that

1) a transaction between the US and Lithuania occurred in which Lithuania agrees to provoke PRC.

2) Lithuania provokes PRC (presumably the act involves the embassy opening).

However, the article you linked publicizes the U.S. trade support which seems to have occurred after (2). The article you linked does not permit one to draw the causal inference that (1)->(2)