Yeah, you are right.
GT5u did no show any lisense.
GTNH-pack give its lisense in a file:
And we did not modify any code of GregTech in GTNH (LGPL).
We mainly change the code of :
Thermal Expansion (MIT lisence)
Mixin (MIT lisence)
GalacticCraft in GTNH (They obey same lisence with vanilla GC)
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