Concentration of risk	3 Months Ended
Sep. 30, 2022
Risks and Uncertainties [Abstract]
Concentration of risk	Note 18 - Concentration of risk Credit risk Financial instruments that potentially subject the Company to significant concentrations of credit risk consist primarily of cash and cash equivalents and accounts receivable. As of September 30, 2022 and June 30, 2022, $4,842,146 and $1,821,947, respectively, were deposited with various major financial institutions in the United States and PRC. Accounts at each institution in the United States are insured by the Federal Deposit Insurance Corporation (FDIC) for up to $250,000. The Company had approximately $3.9 million and $0.5 million, respectively, in excess of the FDIC insurance limit, as of September 30, 2022 and June 30, 2022. Accounts receivable are typically unsecured and derived from revenue earned from customers, thereby exposing the Company to credit risk. The risk is mitigated by the Company’s assessment of its customers’ creditworthiness and its ongoing monitoring of outstanding balances. The Company maintains reserves for estimated credit losses, and such losses have generally been within expectations. The business of DHS, the Company’s VIE, may be impacted by Chinese economic conditions, changes in regulations and laws, and other uncertainties. Customer and vendor concentration risk For the three months ended September 30, 2022 and 2021, Amazon Vendor and Amazon Seller customers accounted for 91% and 89% of the Company's total revenues, respectively. As of September 30, 2022 and June 30, 2022, accounts receivable from Amazon Vendor and Amazon Seller accounted for 94% and 94% of the Company’s total accounts receivable. For the three months ended September 30, 2022 and 2021, one supplier accounted for 19% and two suppliers accounted for 47% (36% and 11%) of the Company's total purchases, respectively. As of September 30, 2022, accounts payable to two suppliers accounted for 48% and 11% of the Company’s total accounts payable. As of June 30, 2022, accounts payable to two suppliers accounted for 34% and 10%, respectively, of the Company’s total accounts payable.

Concentration of risk

3 Months Ended

Sep. 30, 2022

Note 18 - Concentration of risk

Credit risk

Financial instruments that potentially subject the Company to significant concentrations of credit risk consist primarily of cash and cash equivalents and accounts receivable.

As of September 30, 2022 and June 30, 2022, $4,842,146 and $1,821,947, respectively, were deposited with various major financial institutions in the United States and PRC. Accounts at each institution in the United States are insured by the Federal Deposit Insurance Corporation (FDIC) for up to $250,000. The Company had approximately $3.9 million and $0.5 million, respectively, in excess of the FDIC insurance limit, as of September 30, 2022 and June 30, 2022.

Accounts receivable are typically unsecured and derived from revenue earned from customers, thereby exposing the Company to credit risk. The risk is mitigated by the Company’s assessment of its customers’ creditworthiness and its ongoing monitoring of outstanding balances. The Company maintains reserves for estimated credit losses, and such losses have generally been within expectations.

The business of DHS, the Company’s VIE, may be impacted by Chinese economic conditions, changes in regulations and laws, and other uncertainties.

Customer and vendor concentration risk

For the three months ended September 30, 2022 and 2021, Amazon Vendor and Amazon Seller customers accounted for 91% and 89% of the Company's total revenues, respectively. As of September 30, 2022 and June 30, 2022, accounts receivable from Amazon Vendor and Amazon Seller accounted for 94% and 94% of the Company’s total accounts receivable.

For the three months ended September 30, 2022 and 2021, one supplier accounted for 19% and two suppliers accounted for 47% (36% and 11%) of the Company's total purchases, respectively. As of September 30, 2022, accounts payable to two suppliers accounted for 48% and 11% of the Company’s total accounts payable. As of June 30, 2022, accounts payable to two suppliers accounted for 34% and 10%, respectively, of the Company’s total accounts payable.