HCM IV Acquisition Corp. Commitments Disclosure

Note 6 — Commitments and Contingencies

Risks and Uncertainties

The Company’s ability to complete an initial Business Combination may be adversely affected by various factors, many of which are beyond the Company’s control. The Company’s ability to consummate an initial Business Combination could be impacted by, among other things, changes in laws or regulations, downturns in the financial markets or in economic conditions, inflation, fluctuations in interest rates, increases in tariffs, supply chain disruptions, declines in consumer confidence and spending, public health considerations, and geopolitical instability, such as the military conflicts in Ukraine and the Middle East. The Company cannot at this time predict the likelihood of one or more of the above events, their duration or magnitude or the extent to which they may negatively impact the Company’s ability to complete an initial Business Combination.

Registration Rights

The holders of the founder shares, Private Placement Warrants and the Class A ordinary shares underlying such Private Placement Warrants, and Private Placement Warrants that may be issued upon conversion of the Working Capital Loans will have registration rights to require the Company to register a sale of any of the Company’s securities held by them and any other securities of the Company acquired by them prior to the consummation of the initial Business Combination pursuant to a registration rights agreement to be signed prior to or on the effective date of the Initial Public Offering. The holders of these securities are entitled to make up to three demands, excluding short-form demands, that the Company registers such securities. In addition, the holders have certain piggyback registration rights with respect to registration statements filed subsequent to the completion of the initial Business Combination. Notwithstanding anything to the contrary, Cantor may only make a demand on one occasion and only during the five-year period beginning on the effective date of the Initial Public Offering. In addition, Cantor may participate in a “piggy-back” registration only during the seven-year period beginning on the effective date of the Initial Public Offering. The Company will bear the expenses incurred in connection with the filing of any such registration statements.

Underwriters’ Agreement

The underwriters had a 45-day option from the date of the Initial Public Offering to purchase up to an additional 3,750,000 Units to cover over-allotments, if any. On February 13, 2026, the underwriters elected to fully exercise their over-allotment option to purchase an additional 3,750,000 Units at a price of $10.00 per Unit.

The underwriters were entitled to a cash underwriting discount of $5,000,000 (2.00% of the gross proceeds of the Units sold in the Initial Public Offering). The underwriters have reimbursed certain of the Company’s offering expenses, specifically the advisory agreement, amounting to $1,250,000.

Additionally, the underwriters are entitled to a deferred underwriting discount of 4.50% of the gross proceeds of the Initial Public Offering held in the Trust Account, $13,687,500 in the aggregate. The deferred fee will become payable to the underwriters from the amounts held in the Trust Account solely in the event that the Company completes a Business Combination, subject to the terms of the underwriting agreement.

Advisory Agreement

The Company engaged Zenith Securities LLC (“Zenith”), an affiliate of a passive member of the Sponsor, to provide consulting and advisory services in connection with the Initial Public Offering, for which it earned customary advisory fees. Zenith represents the Company’s interests only, is independent of the underwriters and is not a party to any securities purchase agreement with the Company, the underwriters, or investors in relation to Initial Public Offering. Zenith’s fee is equal to 1.50% of the aggregate proceeds of the Initial Public Offering, or $4,312,500 (the “Advisor IPO Fee”). The Advisor IPO fee is payable in two portions (i) the fee resulting from the base deal (0.50% in the aggregate of the proceeds of the Initial Public Offering, excluding the proceeds from the exercise of the overallotment option) or $1,250,000 in the aggregate, is due at the closing of the Initial Public Offering and (ii) the aggregate 1.5% Advisor IPO fee attributable to the exercise of the overallotment option will be payable at the closing of the Company’s initial Business Combination, or $3,062,500 in the aggregate.

The Company also engaged Zenith as an advisor in connection with its initial Business Combination for which it will earn an advisory fee of 1.00% of the proceeds of the Initial Public Offering (excluding the proceeds of the exercise of the overallotment option, if any) or $2,500,000 in the aggregate, payable at closing of an initial Business Combination (the “Advisor IBC Fee”). The Advisor IBC Fee and any portion of the aggregate 1.50% Advisor IPO Fee will be payable at the closing of the Company’s initial Business Combination.

The underwriter has reimbursed the Company an aggregate of $1,250,000, for the advisory fees due to Zenith in connection with the Initial Public Offering and the Business Combination. As of December 31, 2025, there is no advisory fee payable presented in the accompanying balance sheet.