I do not think one can separate the economic and financial components of China's strategy from the territorial expansion criteria. Taiwan obviously exists in a cultural and historic framework as part of the greater China, however, the need to occupy territory with "boots on the ground" is a prerequisite for ensuring supply of critical raw materials and possibly technology. I am not yet convinced of China's peaceful intentions in this regard, it may be the "long game" but it has a certain inevitability which will need to be confronted sooner or later.
IG