Company: TLGYF
Filing Date: 2025-12-29
Form Type: S-4/A
Source: 0001213900-25-125608
Chunk: 1206

Company: TLGY ACQUISITION CORP
Filing Date: 2025-12-29
Form: S-4/A
Chunk 1206
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 |               |     |                         |
| TLGY ACQUISITION CORP. |     |               |     |                         |
| By:                    |     | /s/ Young Cho |     |                         |
|                        |     | Name:         |     | Young Cho               |
|                        |     | Title:        |     | Chief Executive Officer |

[Signature Page of Seller Support Agreement]

Annex J-9

| PUBCO:            |     |               |     |                         |
| STABLECOINX, INC. |     |               |     |                         |
| By:               |     | /s/ Young Cho |     |                         |
|                   |     | Name:         |     | Young Cho               |
|                   |     | Title:        |     | Chief Executive Officer |

[Signature Page of Seller Support Agreement]

Annex J-10

| OPCO:                    |     |               |     |                         |
| STABLECOINX ASSETS, INC. |     |               |     |                         |
| By:                      |     | /s/ Young Cho |     |                         |
|                          |     | Name:         |     | Young Cho               |
|                          |     | Title:        |     | Chief Executive Officer |

[Signature Page of Seller Support Agreement]

Annex J-11

IN WITNESS WHEREOF, each of the Parties has caused this Agreement to be duly executed as of the date first written above.

| HOLDER:       |
| /s/ Young Cho |
| Young Cho     |

Address for Notices:

| Address:       |
| Facsimile No.: |
| Telephone No.: |
| Email:         |

[Signature Page of Seller Support Agreement]

Annex J-12 Annex K AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENT THIS AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENT (this “ Agreement ”), dated as of [•], 2025, is made and entered into by and among each of StableCoinX Inc., a Delaware corporation (the “ Company ”), certain former shareholders of TLGY Acquisition Corp. (the “ SPAC ” and such shareholders, the “ Legacy SPAC Shareholders ”), certain former shareholders (the “ Legacy Opco Shareholders ”) of StableCoin X Assets Inc. (“ Opco ”), and Ethena Foundation (“ Ethena ” and, together with the Legacy SPAC Shareholders and the Legacy Opco Shareholders, the “ Significant Holders ”), and any person