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Zhong Yuan Bio-Technology Holdings Ltd

SIC 2833 · Medicinal Chemicals & Botanical Products
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Zhong Yuan Bio-Technology Holdings Ltd

CIK:0001672886|SEC Filings

MATERIAL CONTRACTS

EX-10.31
ex10x31.htm
Nov 7, 2024
EX-10.30
ex10x30.htm
Mar 26, 2024
EX-10.28
ex10x28.htm
Aug 22, 2023
EX-10.29
ex10x29.htm
Aug 22, 2023
EX-10.1
zhong_ex10z1.htm
Jun 28, 2023
EX-10.23
ex10x23.htm
Nov 25, 2022
EX-10.27
ex10x27.htm
Nov 25, 2022
EX-10.26
ex10x26.htm
Oct 27, 2022
EX-10.1
ex10x1.htm
Sep 26, 2022
EX-10.2
ex10x2.htm
Sep 26, 2022
EX-10.20
ex10x20.htm
Aug 4, 2022
EX-10.21
ex10x21.htm
Aug 4, 2022
EX-10.22
ex10x22.htm
Aug 4, 2022
EX-10.19
ex10x19.htm
Jun 1, 2021
EX-10.19
ex10x19.htm
Aug 17, 2020
EX-10.15
ex10-15v2.htm
Jun 11, 2020
EX-10.16
ex10x16.htm
Jun 11, 2020
EX-10.17
ex10x17.htm
Jun 11, 2020
EX-10.18
ex10x18.htm
Jun 11, 2020
EX-10.13
ex10x13.htm
Apr 28, 2020