It's interesting that China seems to have run out of unused Tier 1 and Tier 2 city names for destroyers, which is resulting in China's largest and most advanced destroyers being named after decidedly third and fourth tier cities like Anshan and Zunyi.
Perhaps it's time to retire the four Sovremenny class ships to free up a new names.
The so called tiers are nothing but commoners denomination of economical status (richness), the concept is formed from housing prices. The concept has no meaning in official categorization therefor no meaning in naming PLAN ships.
sure but it's still a miracle why DDG-104 use WuXi,and DDG-108 use XianYang.
WuXi is just a city too ordinary to be ordinary. And for Xianyang. It's a far more small city which is surrounded and swallowing by Xi'an——the capital of ShanXi province(years years ago,there's rumour said Xianyang will merged by Xi'an ). If anything made the city diffirent, It's the capital city of Qin dynasty.But I don;t think that's the real reason.
and there's some convention in PLA navy to name a warship——"dual support"——means support the army and give preferential treatment to the families of revolutionary soldiers and martyrs, and support the government and cherish the people. or in short: city provide relocation expenses and job for soldiers retired in that ship.And the ship named after that city.
For WuXi, It's a very rich city to do that—— WuXi 2021 GPD per capacity is 187k CNY ranked 1st in all Chinese Cities.
But for XianYang, only 61k CNY.
In Chinese administration division, the order is province, provincial capital city, prefecture level city (地级市), county level city (县级市) and township. XianYang, WuXi, Anshan, Yanan and Zunyi are all prefecture level cities. Zunyi and Yanan are specially symbolic therefor they are at the very front of the queue, but even without that symbolism they are still qualified to name 055.
Also, the boundary of naming DDG or Frigate is not clear cut. As the PLAN naming rules says that DDG is named after large and medium sized cities, Frigate is named after medium and small cities.
- 驱逐舰:以“大、中城市”命名。如:“沈阳”号驱逐舰 DDG, a provincial capital
- 护卫舰:以“中、小城市”命名。如:“东莞”号护卫舰 Frigate, a prefecture level city.
There are close to 300 prefecture level cities, China will never run out of naming for DDGs.
To sum up, there is no mystery or limitation of ship naming in PLAN. The mystery is only because of people from different regions compete for bragging right.