How ‘Big 5’ pharmas did with R&D expenses in 1st quarter?

The ‘Big 5’ pharmaceutical companies’ amount spent on R&D in this 1^st quarter was narrowly increased year-on-year. The percentage of the amount to sales passed 12% on average. While Green Cross, Hanmi Pharm and Daewoong Pharmaceutical raised the amount year-on-year, Yuhan Corporation and Chong Kun Dang reduced the amount.

When it comes to the R&D expense/sales ratio, Hanmi Pharm and Daewoong P...