We would like to express our sincere gratitude for your continuing patronage for Nihon Seibutsu Kagaku Co., Ltd., Nihon Kingaku Kenkyujo and BIOTEC Enterprise. We would like to inform you on the business days during Golden-week.

　We will be operating on regular basis on the holidays of May 3 (Tus.), 4 (Wed.) and 5 (Thus.). And for the substitute, we will be closed on May 10 (Tus.), 11 (Wed.) and 12 (Thurs.). We would like to ask you to check the calendar.

※ Head Office, Nihon Kingaku Kenkyujo and Shigyo Sosyu Collection / Memorial Gallery of Toshima Yasumasa will be closed on the same schedule.