JYP Company: Address: Cheongdam-dong 123-50 JYP Center, Gangnam-gu, Seoul, Korea.
Room KLOC-0/007, Block E, Youlehui, Wangjing Wangfujing East Street, Chaoyang District, Beijing, China
YG Company: Address: 349- 10 4? (? ) yg entertainment
Postal code: 12 1-829
DSP Company: Address: 3rd Floor, Sacred Building, No.58-8 Pudong, Caoxi District, Seoul.
58-8 3?
58-8 3F Xincheng Building, Building 4, Banpo, Seocho District, Seoul, Korea (137-803)
PS: I don't know the specific drafting time, and neither does Baidu. You can go to Korea, your company, and ask those who also take part in the draft.