R Bio Co.,Ltd. agreed to acquire 9.01% stake in NatureCell Co.,Ltd. (KOSDAQ:A007390) from Biostar Korea Co., Ltd. on May 25, 2021. R Bio will acquire 5.5 million shares. This transfer amount is scheduled to be paid by August 31, 2021 through the bond transfer transaction to the counterparty of the trading price receivable under the stock trading contract concluded between NatureCell and Biostar Group Co., Ltd.