Almost thirty years have passed since I started managing hospitals.

Currently, I am expanding additional lines of business in the medical field, managing businesses such as Corentec and InssTek.

Hospital management was a big challenge for me because I started my professional career as a banker. Now I hope to fulfill my second dream as I return to becoming a corporate man.

The experience of managing a hospital has helped me a great deal in managing Corentec, as the clients for the business are hospitals.

Just as I have felt when managing a hospital, something I realized in managing Corentec was that what matters the most are the employees and colleagues whom you work with.

At Corentec, we make artificial joints that are inserted in bones. Therefore, we have to deliver perfect quality and result through continuous advancements. The key factor in getting great results is the technology that comes from 'people.'

That is why I always think about the happiness of our employees. Our employees spend a significant portion of their lives at the company. Therefore, they cannot live a happy life if they are not happy at the company.

The pride our employees have in the fact that our products are the best in the world becomes the origin of happiness that cannot be exchanged with anything.

We will continue to nurture many future CEO candidates who are going to lead the organization focusing on the happiness of our employees.

The updated business management story of the three brothers contains stories from both the first and second books as well as some new stories. I hope this revised version becomes a book which our employees can turn to when looking for life lessons.

Lastly, I would like to thank everyone in our hospital, all the employees at our companies, and my family for all their hard work and support.

I hope the sharing of my experience can be a little help for anyone who is reading this book.

Seung Hoon Sun