no, Sentinel is partially HK. Some products like Broken blades and 天元 are HK products , but products like Dancouga and GGGG are JP products. SENTINEL HK and SENTINEL JP have completely separate finance, that‘s why each of them refuses to handle the warranty of each other. They even put special hidden markers on the toy to identify。JP and HK ver. This information is from ex Sentinel Staff. e.g. Dancouga has special hidden markers
Finally explained some of their reactions, if so they have to review their company structure, this kind of internal conflicts will definitely pull their legs and only consumer will suffer poor after sales service. If their conflicts unsolved, they even won't communicate on product design and engineering? That's not good to everyone.