China's hydrogen sector is experiencing rapid growth, fueled by substantial investments from Chinese companies. Chinese firms have overtaken Japan in low-carbon hydrogen-related patents, showcasing their dominance in green hydrogen technologies. The country's focus on green hydrogen applications in transportation has raised concerns among Japanese executives, who warn of China's potential control over the global hydrogen vehicle supply chain. China's aggressive approach to patents and strategic investments has allowed it to surpass targets set in its national hydrogen strategy, positioning the country as a key player in the global hydrogen market. Chinese solar giants like LONGi and Sungrow are expanding into the green hydrogen space, capitalizing on their expertise in the solar and wind sectors. However, this expansion poses a challenge to other countries, particularly Japan, in competing with China's advancements in hydrogen technology. Japan's response includes offering subsidies to bridge cost gaps and collaborating with other countries on advanced hydrogen technologies. The European Union is also considering measures to protect its domestic industries from Chinese dominance in hydrogen projects. Overall, China's remarkable progress in the hydrogen sector reflects a positive outlook for the country's clean energy future, albeit raising concerns about global competition and market dynamics.