Company: FUFU
Filing Date: 2025-06-10
Form Type: 424B5
Source: 0001213900-25-053161
Chunk: 21

Company: Bitfufu Inc.
Filing Date: 2025-06-10
Form: 424B5
Chunk 21
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 “mark-to-market” election, such U.S. Holder generally will
be subject to special rules with respect to: (i) any gain recognized by the U.S. Holder on the sale or other disposition
of Class A Ordinary Shares and (ii) any “excess distribution” made to the U.S. Holder (generally, any distributions
to such U.S. Holder during a taxable year of the U.S. Holder that are greater than 125% of the average annual distributions
received by such U.S. Holder in respect of the Class A Ordinary Shares during the three preceding taxable years of such
U.S. Holder or, if shorter, such U.S. Holder’s holding period for such ordinary shares).

Under these rules:

| ● | the U.S. Holder’s gain or excess distribution                                                
 will be allocated ratably over the U.S. Holder’s holding period for Class A Ordinary Shares; |

| ● | the amount allocated to the U.S. Holder’s taxable                                                                        
 year in which the U.S. holder recognized gain or received the excess distribution, or to the period in the U.S. Holder’s 
 holding period before the first day of our first taxable year in which we are a PFIC, will be taxed as ordinary income;  |

| ● | the amount allocated to other taxable years (or portions                                                                         
 thereof) of the U.S. Holder and included in its holding period will be taxed at the highest tax rate in effect for that year and 
 applicable to the U.S. Holder; and                                                                                               |

| ● | the interest charge generally applicable to underpayments                                                     
 of tax will be imposed in respect of the tax attributable to each such other taxable year of the U.S. Holder. |

<div align='center'>S-13</div>

Although a determination as to our PFIC status will be made annually,
an initial determination that we are a PFIC will generally apply for subsequent years to a U.S. Holder who held Class A
Ordinary Shares while we were a PFIC, whether or not we meet the test for PFIC status in those subsequent years.

If a U.S. Holder, at the close of its taxable year, owns shares
in a PFIC that are treated as marketable stock, the U.S. Holder may make a mark-to-market election with respect to such shares
for such taxable year. If the U.S. Holder makes a valid mark-to-market election for the first taxable year of the U.S. Holder
in which the U