My question is that do they have mini account?

https://hiroseuk.com/

Hirose Financial UK is owned and operated by 

Hirose Financial UK Ltd, authorized and regulated by the Financial Conduct Authority (FCA) under reference number 540244.

Hirose Tusyo Inc, licensed by the Japan Financial Services Agency (FSA) with registration number 41.

As for the question you asked, we would recommend that you check the broker's official website or ask the official customer service directly for a more accurate answer. For more details on this broker, please check our full Hirose Financial UK review.