SEC Filings

    Filing date Form Description Filing Group View
    F-1

    Registration statement for certain foreign private issuers
    Registration Statements
    		 View HTML
    0001104659-23-044356.pdf
    0001104659-23-044356.rtf
    0001104659-23-044356.xls
    EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA
    6-K

    Report of foreign issuer rules 13a-16 and 15d-16 of the Securities Exchange Act
    Current Reports
    		 View HTML
    0001104659-23-036902.pdf
    0001104659-23-036902.rtf
    0001104659-23-036902.xls
    6-K

    Report of foreign issuer rules 13a-16 and 15d-16 of the Securities Exchange Act
    Current Reports
    		 View HTML
    0001104659-23-033484.pdf
    0001104659-23-033484.rtf
    0001104659-23-033484.xls
    CERT

    Paper Submission

    		 View HTML
    0001354457-23-000184.pdf
    425

    Filing of certain prospectuses and communications in connection with business combination transactions
    Other
    		 View HTML
    0001104659-23-032357.pdf
    0001104659-23-032357.rtf
    425

    Filing of certain prospectuses and communications in connection with business combination transactions
    Other
    		 View HTML
    0001104659-23-023534.pdf
    0001104659-23-023534.rtf
    0001104659-23-023534.xls
    424B3

    Form of prospectus reflecting facts events constituting substantive change from last form
    Registration Statements
    		 View HTML
    0001104659-23-023535.pdf
    0001104659-23-023535.rtf
    424B3

    Form of prospectus reflecting facts events constituting substantive change from last form
    Registration Statements
    		 View HTML
    0001104659-23-012172.pdf
    0001104659-23-012172.rtf
    0001104659-23-012172.xls
    425

    Filing of certain prospectuses and communications in connection with business combination transactions
    Other
    		 View HTML
    0001104659-23-012208.pdf
    0001104659-23-012208.rtf
    EFFECT

    EFFECT
    Other
    		 View HTML
    9999999995-23-000294.pdf
    9999999995-23-000294.rtf
    9999999995-23-000294.xls
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    Contact Info

    YS Biopharma Co., Ltd.

    11 Firstfield Road Suite A
    Gaithersburg, Maryland 20878 USA

    Tel: +1 (301) 208 8823
    Fax: +1 (301) 208 8827

    bjinfo@yishengbio.com