H-IIA

H-IIA (H-2A) is an expendable launch system operated by Mitsubishi Heavy Industries (MHI) for the Japan Aerospace Exploration Agency. The H-IIA is a derivative of the earlier H-II rocket, substantially redesigned to improve reliability and minimize costs. There have been four variants, with two in active service (as of 2021) for various purposes. A derivative design, the H-IIB, was developed in the 2000s and made its first flight in 2009.