YAS Co., Ltd. announced a private placement to issue Zero Coupon Series 1 Bearer Unsecured Private Convertible Bonds due December 31, 2030 for gross proceeds of KRW 11,937,701,984 on December 23, 2025. The transaction will include participation from new investors Mirae Asset Securities Co., Ltd.(In the position of trustee of Fund 1) KRW 800,000,000, Samsung Securities Co.,Ltd. (In the position of trustee of Fund 2) KRW 700,000,000, Samsung Securities Co., Ltd.(In the position of trustee of Fund 3) KRW 500,000,000, Mirae Asset Securities Co., Ltd. In the position of trustee of Fund 4) KRW 200,000,000, NH Investment & Securities Co., Ltd. (In the position of trustee of Fund 5) KRW 300,000,000, NH Investment & Securities Co., Ltd. (In the position of trustee of Fund 6) KRW 400,000,000, Shinhan Investment & Securities Co., Ltd. (In the position of trustee of Fund 7) KRW 200,000,000, NH Investment & Securities Co., Ltd. (In the position of trustee of Fund 8) KRW 300,000,000, NH Investment & Securities Co., Ltd. (In the position of trustee of Fund 9) KRW 200,000,000, NH Investment & Securities Co., Ltd. (In the position of trustee of Fund 10) KRW 200,000,000, V1 Multistrategy No. 1 PEF KRW 200,000,000, NH Investment & Securities Co., Ltd. (In the position of trustee of Fund 11) KRW 700,000,000, NH Investment & Securities Co., Ltd. (In the position of trustee of Fund 12) KRW 800,000,000, NH Investment & Securities Co., Ltd., (In the position of trustee of Fund 13) KRW 500,000,000, Samsung Securities Co., Ltd. (In the position of trustee of Fund 14) KRW 500,000,000, Samsung Securities Co., Ltd. (In the position of trustee of Fund 15) KRW 500,000,000, KB Securities Co., Ltd.(In the position of trustee of Fund 16) KRW 200,000,000, Shinhan Investment & Securities Co., Ltd. (In the position of trustee of Fund 17) KRW 200,000,000, Samsung Securities Co., Ltd. (In the position of trustee of Fund 18) KRW 337,701,984, Samsung Securities Co., Ltd. (In the position of trustee of Fund 19) KRW 1,000,000,000, Samsung Securities Co., Ltd. (In the position of trustee of Fund 20) KRW 1,200,000,000 and Korea Investment & Securities Co., Ltd. KRW 2,000,000,000.

The transaction has been approved by shareholders, expected to close on December 31, 2025, bears zero coupon rate, zero maturity rate, matures on December 31, 2030, 100% convertible into 989,531 shares at a fixed conversion price of KRW 12,064 from January 6, 2026 to December 24, 2030.