even such prefabricated parts are not part of real shipbuilding capacity. As far as I know China has only delivered its first LNG carrier in 2006.

What do you mean with “tabs being kept”??
If you mean “tables of shipbuilding”, then they are indeed kept and as I have mentioned above, they are based on ordered Gross Tonnage (which is by the way a volume rather than weight)

How many LNGs were delivered in the meantime?
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Marius from Industrial Installation
Estimation and consultation