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                             January 5, 2022

       Pat Cotroneo
       Chief Financial Officer
       FIBROGEN INC
       409 Illinois Street
       San Francisco, CA 94158

                                                        Re: FIBROGEN INC
                                                            Form 10-K for the
Fiscal Year Ended December 31, 2020
                                                            Filed March 1, 2021
                                                            File No. 001-36740

       Dear Mr. Cotroneo:

              We have reviewed your December 16, 2021 response to our comment
letter and have the
       following comments. In some of our comments, we may ask you to provide
us with information
       so we may better understand your disclosure.

              Please respond to these comments within ten business days by
providing the requested
       information or advise us as soon as possible when you will respond. If
you do not believe our
       comments apply to your facts and circumstances, please tell us why in
your response.

            After reviewing your response to these comments, we may have
additional
       comments. Unless we note otherwise, our references to prior comments are
to comments in our
       November 8, 2021 letter.

       Form 10-K filed March 1, 2021

       Cover Page

   1.                                                   We note your response
to our prior comment 1. At the onset of Part 1, please provide
                                                        prominent disclosure
that you are a U.S. holding company that conducts its operations in
                                                        China through a
wholly-owned subsidiary and joint venture, as referenced in your
                                                        response to comment 1,
and that investors will not hold direct investments in the Chinese
                                                        operating companies.
   2.                                                   We note your response
to our prior comment 2, which we reissue. We note your
                                                        disclosure that 42% of
revenue for the fiscal year ended December 31, 2020 was from
                                                        roxadustat commercial
sales in China and that you own manufacturing facilities in China
                                                        to produce your lead
product. Please expand your disclosure at the onset of Part 1 to
                                                        provide prominent
disclosure about the legal and operational risks associated with having
 Pat Cotroneo
FirstName  LastNamePat Cotroneo
FIBROGEN     INC
Comapany
January    NameFIBROGEN INC
        5, 2022
January
Page 2 5, 2022 Page 2
FirstName LastName
         a significant portion of the company's operations in China.
3.       We note your response to our prior comment 4 and proposed disclosure
to be provided in
         the Management's Discussion and Analysis of Financial Condition and
Results of
         Operations and Risk Factors section. Please also provide revised
disclosure at the onset of
         Part 1. We will not object to expanded disclosure under the heading
"ROXADUSTAT
         FOR THE TREATMENT OF ANEMIA IN CHRONIC KIDNEY DISEASE IN CHINA,"
         as referenced in response to prior comment 3.
4.       We note your response to our prior comment 7, which we reissue in
part. We note your
         proposed additional risk factor. Please also provide related
disclosure at the onset of Part
         1. Additionally, please revise your proposed disclosure to explicitly
address the
         consequences to you and your investors if you, your subsidiaries or
Falikang inadvertently
         conclude that such permissions or approvals are not required.
5.       At the onset of Part 1, please disclose whether your auditor is
subject to the
         determinations announced by the PCAOB on December 16, 2021 and whether
and how
         the Holding Foreign Companies Accountable Act and related regulations
will affect your
         company.
Item 1A. Risk Factors, page 49

6.       We note from the audit opinion that you have a U.S. based auditor that
is registered with
         the PCAOB and currently subject to PCAOB inspection. Please disclose
any material risks
         to the company and investors if it is later determined that the PCAOB
is unable to inspect
         or investigate completely your auditor because of a position taken by
an authority in a
         foreign jurisdiction. For example, disclose the risk that lack of
inspection could cause
         trading in your securities to be prohibited under the Holding Foreign
Companies
         Accountable Act and as a result an exchange may determine to delist
your securities.
7.       Please expand your risk factors to disclose that the United States
Senate has passed the
         Accelerated Holding Foreign Companies Accountable Act, which, if
enacted, would
         decrease the number of "non-inspection years" from three years to two
years, and thus,
         would reduce the time before your securities may be prohibited from
trading or delisted.
         Additionally, disclose that the Commission adopted rules to implement
the HFCAA and
         that, pursuant to the HFCAA, the PCAOB has issued its report notifying
the Commission
         of its determination that is unable to inspect or investigate
completely accounting firms
         headquartered in mainland China or Hong Kong.
       You may contact Jane Park at 202-551-7439 or Christine Westbrook at
202-551-
5019 with any questions.



                                                               Sincerely,
 Pat Cotroneo
FIBROGEN INC
January 5, 2022
FirstName
Page 3     LastNamePat Cotroneo
Comapany NameFIBROGEN INC
                                  Division of Corporation Finance
January 5, 2022 Page 3            Office of Life Sciences
FirstName LastName