The PHL03 (Type 03, also known as AR2 in its export name) is the 12-tube 300mm multiple launch rocket system (MLRS) developed by NORINCO. The PHL03 highly resembles the Russian 9K58 Smerch rocket system in appearance. China Academy of Launch Vehicle (CALT) introduced the A-100 10-tube 300mm MLRS in the late 1990s, which may also be based on the Smerch technology. The PHL03 is believed to have entered the PLA service in 2004/05 and is likely to be promoted to the export market.