There are some differences between Hong Kong, China accounting and Mainland China accounting, mainly in the following areas.

1. Accounting standards: Hong Kong, China accounting adopts Hong Kong Financial Reporting Standards (HKFRS), while Mainland China adopts China Accounting Standards (CAS). Since the two standards are not the same, there will be differences in accounting treatment and reporting.

2. Taxation system: Hong Kong has a low-tax system with a lower tax rate, while the Mainland has a higher tax rate. There are also differences in accounting and reporting between the two tax policies, which need to be handled in accordance with local laws and regulations.

3. Currency system:The currency used in Hong Kong, China is the Hong Kong Dollar, while the currency used in Mainland China is the Renminbi. Due to the different currencies, enterprises in the two places need to convert and handle their accounting and reporting according to the different currencies.

4. Financial statement disclosure: Hong Kong companies usually disclose more detailed financial information, including the company's share capital structure and the remuneration of board members, while Mainland China companies usually disclose only the necessary financial information.

5. Corporate Governance: Hong Kong and Mainland China companies also differ in terms of corporate governance. Hong Kong companies usually adopt the Western model of corporate governance, including independent directors and audit committees, while Mainland China companies emphasize more on family businesses and government intervention.

6. Audit Requirements: There are also differences in audit requirements between Hong Kong and Mainland China companies, with Hong Kong companies usually subject to more stringent audit procedures and audits, while Mainland China companies are relatively more relaxed.

In summary, Hong Kong accounting and mainland China accounting in the system, tax, monetary and regulatory requirements, there are differences, companies in the accounting treatment and reporting needs to be handled in accordance with local laws and regulations.