The first-generation of Chinese nuclear submarines, the Type 093 is a nuclear-powered attack submarine class deployed by the Chinese People's Liberation Army Navy. These boats are expected to replace the older Type 091 SSNs currently in service. The Type 093 are armed with various torpedoes and anti-ship missiles. The lead boat in this class was launched in 2002. Construction of the Type 093 submarines is being conducted at the Bohai Shipyard in Huludao. Six to eight boats are expected to be built. Improved Type 093 variants has also been launched, with an upgraded subclass seen in 2013.