So, new update and among other things, the Clan area was reworked by WG, so instead of having all buildings, we're pushed back a bit.
Dry dock, reducing the post-battle repair costs, the first three upgrades give a total of 5 % reduction across all tiers, then 5 more percent, then 2, then 3. We currently have nothing there.
Shipbuilding yard, reducing the purchase cost of normal ships, the first three upgrades give a total of 10 % reduction across all tiers, then 2 more percent, then 2, then 1. We currently have nothing there.
Research center, giving extra XP after battle, the first three upgrades give a total of 2 % bonus across all tiers, then 1 more percent, then 1, then 1. We currently have the furst three levels. + 2 % XP across all tiers.
Design Bureau, giving extra Free XP after battle, the first three upgrades give a total of 10 % bonus across all tiers, then 5 more percents, then 5, then 5. We currently have the first three levels. + 10 % Free XP across all tiers.
Academy, giving extra Commander XP after battle, each upgrade giving 2 %. We currently have the first two out of five levels. + 4 % Commander XP across all tiers.
Coal Port, giving extra Coal, 5 % then 2 % then 3 %. We have the first level. + 5 % coal.
Steel Port, giving extra Steel, 5 % then 2 % then 3 %. We have the first level. + 5 % coal.
Rostral Column, showing all of our one achievement. Free.