In 1989, began the construction of the Type 037IG Houxin class missile boat, which are a variant armed with missiles of the previous patrollers Hainan class. Until 1999, more than 25 vessels were built, six of which were exported to Myanmar between 1995 and 1997 and one to Sri Lanka. The main mission of these vessels is the anti-ship combat and they have two twin YJ-1 (C-801), (or CSS-N-4 Sardine according to NATO designation), missile launchers. This class entered into service with the Chinese Navy in 1991, and was a low-cost version of the Type 037-II (Houjian class) corvettes, more powerful armed and faster than the Houxian class. Currently all remain in service with the PLN (People’s Liberation Navy).
HOUXIN class gallery and more info