Look at their website kr-asia.com
There is a lot of chinglish, I can barely understand their articles. Their address seems to be a shared office.
I would caution you against working for mainland companies, there is a tech bubble in china (along with ahousing bubble) where mainland startups get money from investors but are not even turning good profits.
Ofo is a good example, talk until very nice but now bankrupt and still 'saving face'. A lot of people are cheated in the mainland.
The mainland provinces' cmmunist party leaders love such bubbles and they like to fake their GDP figures. Just don't get burnt.