Company: HCWB
Filing Date: 2025-04-28
Form Type: DRS
Source: 0000950123-25-003769
Chunk: 122

Company: HCW Biologics Inc.
Filing Date: 2025-04-28
Form: DRS
Chunk 122
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 Information Reporting In general, information returns may be filed with the IRS in connection with actual or constructive dividends paid to a U.S. Holder in respect of our securities, and the proceeds received by a U.S. Holder from the sale, exchange or other disposition of our securities within the United States or through certain U.S.-related 75

Confidential Treatment Requested by HCW Biologics Inc.

Pursuant to 17 C.F.R. Section 200.83

financial intermediaries will be subject to U.S. information reporting rules, unless a U.S. Holder is a corporation or other exempt recipient and properly establishes its rights to an exemption.
Backup withholding at a rate of 24% may apply to such payments if a U.S. Holder does not establish an exemption from backup withholding or fails to provide a correct taxpayer identification number and make any other required certifications.

In general, information returns may be filed with the IRS in connection with dividends paid to non-U.S. Holders, and the proceeds received by
a non-U.S. Holder from the sale, exchange or other disposition of our securities within the United States or through certain U.S.-related financial intermediaries. Copies of the information returns reporting dividends, and any withholding may also
be made available to the tax authorities in the country in which the non-U.S. Holder resides under the provisions of a treaty or agreement. A non-U.S. Holder may be subject to backup withholding (currently at a rate of 24%) in connection with actual
or constructive dividends with respect to our securities and the proceeds from the sales, exchange or other disposition of our securities unless the non-U.S. Holder provides to the applicable withholding agent a properly executed IRS Form W-8BEN or
W-8BEN-E (or other applicable form) certifying under penalties of perjury that the non-U.S. Holder is not a United States person, or otherwise qualifies for an exemption.

Backup withholding is not an additional tax. Any amounts withheld under the backup withholding rules will be allowed as a refund or credit
against U.S. federal income tax liability, provided that the required information is timely furnished to the IRS. Holders are urged to consult their own tax advisor regarding the information reporting and backup withholding rules.

Foreign Account Tax Compliance Act

Sections 1471 through 1474 of the U.S. Tax Code and the Treasury Regulations and administrative guidance promulgated thereunder (commonly
referred as the “Foreign Account Tax Compliance Act” or “FATCA