Western production lines for the most part can only build one submarine at a time, and only the US is capable of building two submarines simultaneously, but China is now capable of building four submarines at one time.

China already has at least four type 094/094A ballistic missile submarines and at least five Type 093/093G attack submarines, so it is speculated that the new facility is to build the successor third-generation classes of Type 096 ballistic missile submarines and Type 095 attack submarines. The new submarines will be built using modular fabrication techniques. The projection is made that Chinese nuclear submarine production will double its rate within two to three years. 

China currently has about three submarine production lines and can build 5 to 6 submarines at one time. This would mean in three years China could be building ten to twelve submarines at one time.