On semi-pro/pro side:
Singapore is sad
other than Singapore sport school and a few clubs/centers keeping proper youth development alive, all those monies to import Chinese players (and who have mostly all left, mere a few), there isnt really much growth (if we were to match it with inflation %). I am told education focus is too heavy, so sports kids is a huge minority and then to choose table tennis and to excel in it... well, the maths doesn't allow.
Malaysia is all individual based, no real funding.
Lots of centers to train. I am hosting a U15 player, who is top 3 in his center and due to that - he has reached a peak in terms of levels he can train with. In Taiwan, almost everyone is higher than him, so his 1 month training her will push him higher.
Thailand the womens tt is a threat for the rest of the world.
Other than the 3 famous womens player we know of, I saw a U19 yesterday and have very solid foundation.
I don't have the knowledge of domestic structure but womens on the world stage is showing results. This is very worrying for me, but huge respect for the Thai coaches in getting it right.
Philippines, one top junior girl is now living in 888, USA, she should be able to break records.
Yogibear can comment about the domestic structure.