United States securities and exchange commission logo





                            October 17, 2023

       Songlin Song
       Chief Executive Officer
       Zhengye Biotechnology Holding Limited
       No.1 Lianmeng Road, Jilin Economic & Technical Development Zone
       Jilin City, Jilin Province, China

                                                        Re: Zhengye
Biotechnology Holding Limited
                                                            Amendment No. 1 to
Draft Registration Statement on Form F-1
                                                            Submitted September
28, 2023
                                                            CIK No. 0001975641

       Dear Songlin Song:

            We have reviewed your amended draft registration statement and have
the following
       comments.

              Please respond to this letter by providing the requested
information and either submitting
       an amended draft registration statement or publicly filing your
registration statement on
       EDGAR. If you do not believe a comment applies to your facts and
circumstances or do not
       believe an amendment is appropriate, please tell us why in your
response.

               After reviewing the information you provide in response to this
letter and your amended
       draft registration statement or filed registration statement, we may
have additional comments.

       Draft Registration Statement on Form F-1, submitted September 28, 2023

       Prospectus Summary
       Our Corporate Structure, page 2

   1.                                                   We note your response
to our prior comment 2 and reissue in part. Please include a
                                                        discussion of how the
Cybersecurity Review Measures and the Anti-Monopoly Law may
                                                        impact the Company's
ability to accept foreign investments or list on a U.S. or other
                                                        foreign exchange if you
were found to be subject to such regulatory action.
       Use of Proceeds, page 51

   2.                                                   We note your response
to our prior comment 5 and your revised disclosure beginning on
                                                        page 51, including the
table detailing the R&D projects and the expected proceeds to be
                                                        used for each, and your
intention to use 30% of the net proceeds or RBM90,055,00 or
                                                        US$13,056,748 to
conduct the listed R&D projects including completing various clinical
 Songlin Song
FirstName LastNameSonglin Song
Zhengye Biotechnology Holding Limited
Comapany
October 17,NameZhengye
            2023       Biotechnology Holding Limited
October
Page 2 17, 2023 Page 2
FirstName LastName
         trials and obtaining Registration Certificates of New Veterinary
Drugs. We also note your
         disclosure in the table that the total proceeds that are expected to
be used by the operating
         entity in this fashion appear to exceed RBM90,055,00 or US$13,056,748.
Please reconcile
         your disclosure in this regard, or advise.
Management's Discussion and Analysis of Financial Condition and Results of
Operations
Key Components of Results of Operations
Research and development expenses , page 60

3.       We acknowledge the information provided in your expanded disclosure
but continue to
         have difficulty in understanding the accounting treatment for your
collaboration activities.
         Please provide an accounting analysis for activities under your
collaboration
         arrangements with Shanghai Veterinary Research Institute, Harbin
Veterinary Research
         Institute, China Agricultural University/China Institute of Veterinary
Drug Control
         and Jilin Province/Jilin University. Refer us to the technical
analysis upon which you
         relied, including your consideration of guidance in ASC 808. In this
regard, describe the
         nature and extent of patent cross licensing between the collaborator
and operating entity
         and contractual terms governing these licensing activities under your
collaboration
         arrangements. Also, demonstrate how proceeds "expected to be paid to
collaborator"
         and "proceeds expected to be used by the operating entity" for
individual R&D projects
         sum to the corresponding totals of RMB90.05 million and
USD$13,056,748, as presented
         on page 51. Revise your disclosures accordingly.
Management's Discussion and Analysis of Financial Condition and Results of
Operations
Results of Operations, page 61

4.       We note your response to our prior comment 9. Please also provide the
RMB to
         USD conversion for fiscal year end 2021 in the consolidated results of
operations table so
         that investors can make proper comparisons.
Industry
Analysis of Domestic Top Players' Product Portfolio, page 72

5.       We note your response to our prior comment 13. We reissue our comment
in full. Please
         revise your disclosure to identify the names of the companies listed
in Frost & Sullivan   s
         analysis. In the alternative, please provide us with a more detailed
analysis as to why you
         believe the names of the companies should be excluded from the
prospectus.
Analysis of Domestic Top Players' Pet Vaccine Portfolio, page 77

6.       We note your response to our prior comment 16. Please also include a
description of the
         structure of the trials conducted.
Products, page 82

7.       We note your response to our prior comment 24 and reissue. Please
provide further details
 Songlin Song
Zhengye Biotechnology Holding Limited
October 17, 2023
Page 3
      about the research the operating entity is conducting with regard to
Feline Infectious
      Peritonitis Subunit Vaccine, Feline Leukemia and Feline Immunodeficiency
Disease
      Duplex mRNA Vaccine, and Feline GnRH Immunocontraceptive Vaccine.
8.    We note your response to our prior comment 25 and your revised disclosure
on page 85
      noting that the operating entity has completed clinical trials for Feline
Herpes virus, Feline
      Calicivirus and Feline Panleukopenia Triple Vaccine, Inactivated, and
that its application
      for a Registration Certificate of New Veterinary Drugs for "this vaccine
has been received
      by the Ministry of Agriculture and Rural Affairs of the PRC on February
20, 2023."
      Please revise your disclosure to describe the current status of the
operating entity's
      application. Additionally, please disclose the structure of the clinical
trials and what
      results, if any, were observed.
R&D, page 90

9.    We note your response to our prior comment 31 and your revised disclosure
regarding the
      material terms of your various collaboration agreements. Please revise
your disclosure in
      this section further to state the total aggregate amount to date that has
been paid pursuant
      to each agreement, as you disclose on page 80.
       Please contact Franklin Wyman at 202-551-3660 or Daniel Gordon at
202-551-3486 if
you have questions regarding comments on the financial statements and related
matters. Please
contact Doris Stacey Gama at 202-551-3188 or Joshua Gorsky at 202-551-7836 with
any other
questions.



                                                             Sincerely,
FirstName LastNameSonglin Song
                                                   Division of Corporation
Finance
Comapany NameZhengye Biotechnology Holding Limited
                                                   Office of Life Sciences
October 17, 2023 Page 3
cc:       Ying Li, Esq.
FirstName LastName