[2] The Chu-SAM air defense system is based on 8×8 cross country unarmored trucks, and includes a command center, radar unit, launcher, and transloader, with each unit equipped with six missiles that travel at Mach 2.5.

[3] In 2014, the JGSDF began evaluation of the upgraded Chu-SAM Kai, which uses improved sensor and networking features for better range and targeting of more complex cruise and anti-surface missile threats.

During the summer of 2015, 10 Chu-SAM Kai missiles were test fired at White Sands Missile Range in the United States and successfully intercepted various targets, including a GQM-163 Coyote supersonic target drone; White Sands hosted the launches because the location's large size and controlled airspace allowed for testing conditions unavailable in Japan.

[6] It was successfully test fire onboard JS Asuka in December 2022.

The new missile’s main body is based on the technology of the Type 03 medium-range surface-to-air missile (modified), which is currently being deployed by the Japan Ground Self-Defense Force (JGSDF), and the booster is based on the technology of the Type 07 VL-ASROC in service with the JMSDF.