X0609 4 2026-06-25 0002080215 StableCoinX Inc. USDE 0001870239 Cho Young false 6160 WARREN PARKWAY, SUITE 100 FRISCO TX 75034 1 Chief Financial Officer 0 Class A Common Stock 2026-06-25 4 A 0 323750.0000 0 A 323750.0000 D Class A Common Stock 2026-06-25 4 A 0 60799.0000 0 A 384549.0000 D Class B Common Stock 2026-06-25 4 A 0 323750.0000 0 A 323750.0000 D These shares of Class A Common Stock of the Issuer were issued in connection with the closing of the business combination (the "Business Combination") among StablecoinX Inc. (the "Issuer"), TLGY Acquisition Corp. ("TLGY"), and StablecoinX Assets Inc. ("SC Assets"), pursuant to the terms of the Business Combination Agreement, dated July 21, 2025, by and among the Issuer, TLGY, SC Assets and the other parties thereto (as amended, the "Business Combination Agreement") upon the exchange of shares of SC Assets Class B Common Stock held by the Reporting Person hereunder. Represents shares of Class A Common Stock of the Issuer underlying Restricted Stock Units ("RSU"), each of which represents a contingent right to receive one share of the Issuer's Class A Common Stock. The RSUs will vest on December 25, 2026, subject to the Reporting Person's continued service through such date. These shares of Class B Common Stock of the Issuer were issued in connection with the closing of the Business Combination pursuant to the terms of the Business Combination Agreement, upon the exchange of shares of SC Assets Class B Common Stock held by the Reporting Person hereunder. The Reporting Person disclaims Section 16 beneficial ownership of the securities hereby, except to the extent of his pecuniary interest therein, if any. /s/ Young Chi Cho 2026-06-29