- Diesel-electric, low noise skew back propeller
- 4 * Bumhan Industry PH1 PEM fuel cell each with 150 kW
- 6 * 533 millimetres torpedo tubes (Tiger Shark torpedo and Harpoon)
- 6 * VLS tubes (Cruise and ballistic missile)
ROKS Ahn Mu (SS-085) is the second attack submarine of the Dosan Ahn Changho-class submarine for the Republic of Korea Navy. The 2nd ship was observed nearing completion in the Geoje shipyard of Daewoo Shipbuilding & Marine Engineering on May 12, 2019.