Proem Acquisition Corp. I

1. Proem SPAC Partners I LLC, the Issuer's sponsor (the "Sponsor"), purchased 4,983,333 ordinary shares for $25,000. Among which, 650,000 ordinary shares are subject to forfeited depending on the extent to which the underwriters' over-allotment option is exercised.

2. Reflects the 292,500 private units owned by the Sponsor. Each private unit consists of one ordinary share and one-half of one redeemable warrant, with each whole warrant entitling the holder thereof to purchase one ordinary share for $11.50 per share, subject to adjustment. The private units were purchased pursuant to a Private Placement Units Purchase Agreement, dated February 11, 2026, by and between the Sponsor and the Issuer, at $10.00 per unit for an aggregate purchase price of $2,925,000.

3. The warrants included in the private units will become exercisable on the later of (i) the completion of the Issuer's initial business combination, or (ii) February 11, 2027 (12 months after the Issuer's registration statement has been declared effective by the Securities and Exchange Commission), and will expire five years after the completion of the initial business combination or earlier upon redemption or liquidation.