Power of Attorney for Agustina Gani Tjandrasuwita

This filing is a Power of Attorney document executed by Agustina Gani Tjandrasuwita, COO & Deputy CFO of Solana Co, appointing Jeffrey Mathiesen and John Mayberry as her attorneys-in-fact. The purpose is to allow them to prepare and execute Forms 3, 4, and 5, including amendments, on her behalf for submission to the SEC. This is in compliance with Section 16(a) of the Securities Exchange Act of 1934. The power of attorney remains in effect until Tjandrasuwita is no longer required to file these forms, or until revoked. The document was signed on March 26, 2026, with the power of attorney effective as of April 6, 2026.