

Since 1983, the ADD researchers have been collecting and analyzing data for future artillery. The development started in 1989 and was led by the Agency for Defense Development (ADD) and Samsung Aerospace Industries (now Hanwha Defense). With the success in designing and manufacturing the KH178 105 mm and KH179 155 mm Towed Howitzers, and experience gained by license producing the K55 (KM109A2), the Ministry of Defense ordered the development of a new system that would have a longer firing range, faster firing rate, and high mobility. However, they had shorter firing ranges compared to M-1978 Koksan and were outnumbered by various North Korean artillery. The armed forces operated M107 self-propelled guns and K55 self-propelled howitzers. In the 1980s, the ROK Armed Forces came in need of a new artillery system to contest North Korean equipment. Development Northwest island maritime firing exercise of South Korean Marine Corps

As of 2022, the K9 series has had a 52% share of the global self-propelled howitzer market, including wheeled vehicles, since the year 2000.

K7 total security 2017 key upgrade#
The entire K9 fleet operated by the ROK Armed Forces is now undergoing upgrades to K9A1, and a further upgrade variant K9A2 is being tested for production. K9 howitzers operate in groups with the K10 automatic ammunition resupply vehicle variant. The K9 Thunder is a South Korean 155 mm self-propelled howitzer designed and developed by the Agency for Defense Development and private corporations including Dongmyeong Heavy Industries, Kia Heavy Industry, Poongsan Corporation, and Samsung Aerospace Industries for the Republic of Korea Armed Forces, and is now manufactured by Hanwha Aerospace.
