Yantai Hayes Consulting Company introduced to Korea as a Chinese teacher. Is this company reliable?

I don't know much about this company, but there are many companies doing this business now, so it should not be a leather bag company. South Korea has a need to learn Chinese, but the information promoted by intermediary companies is often exaggerated. It is recommended to ask for all possible information in detail, including salary, accommodation and other details. Generally speaking, the salary may not be very high. China people are the representatives of South Korea's cheap labor, and South Korea's consumption level is in the forefront in Asia, so it should be carefully considered.