Participant Surveillance, Rules & Policies Department
The Participant Surveillance, Rules & Policies Department is responsible for reviewing Exchange Participants' financial and operational capability.

Information Technology Division
The Information Technology Division is responsible for delivering secure, reliable and quality systems to support for the development of financial market infrastructure of HKSAR as well as the internal operations of HKEx. It is organized into the following departments:

Clearing System Development & Support Department
The Clearing System Development & Support Department is responsible for providing continuous, effective and reliable clearing systems and facilities for the clearing, settlement and risk management of equity market (CCASS/3) and derivatives market (DCASS) clearing as well as development, maintaining and supporting relevant application systems used by clearing participants and investor participants.

Exchange System Development & Support Department
The Exchange System Development & Support Department is responsible for providing continuous, effective and reliable trading systems and facilities for the trading of equity market (AMS) and derivatives market (HKATS), the market information dissemination of derivatives market (PRS) as well as developing, maintaining and supporting relevant application systems used by market participants and information vendors.

E-Business & OA Department
The E-Business & OA Department is responsible for the development and support for HKEx website technology infrastructure to support the business initiatives of HKEx, as well as providing effective and reliable desktop computing and office automation technologies to support the business operations of HKEx.

IT Infrastructure & Operations Department
The IT Infrastructure & Operations Department is responsible for the continuous, reliable, and efficient implementation and operation of HKEx IT infrastructure and systems. It operates and delivers mission critical trading systems, clearing & settlement systems, market data dissemination systems, internet and e-mail based systems for the Cash and the Derivatives markets. In the provision of effective and quality IT services, IT Infrastructure & Operations Department is organized into five operational sections namely, (1) Computer Operations, (2) Data Communication & Engineering, (3) Technical Services, (4) Infrastructure & Facility Administration, and (5) Change Management & Security Administration.

Listing System Development & Support Department
The Listing System Development & Support Department is responsible for providing continuous, effective and reliable systems and facilities for Listing Division operations and issuers' corresponding activities as well as developing, maintaining and supporting relevant application systems, e.g. E-Submission and Document Management System, Case Database and etc.

Market Data & Corporate Systems Department
The Market Data & Corporate Systems Department is responsible for providing continuous, effective and reliable dissemination of market data in the equity market (MDS) as well as developing, maintaining and supporting relevant application systems used by information vendors and HKEx internal users, e.g. Issuer Information Feed System, Management Information Systems, HR & Financial Systems and Market Surveillance Systems.

Quality Assurance & Security Management Section
The Quality Assurance & Security Management Section is responsible for improving the processes of the IT Division based on a formal quality management framework. It initiates and facilitates the development of IT Division policies and standards, sets improvement targets, and monitors IT activities and results to ensure compliance to the policies, standards, procedures and improvement targets.

Finance and Administration Division
The Finance and Administration Division is responsible for the finance, treasury and administration functions of HKEx.

Finance Department
The Finance Department is organized into two sections, namely (1) Financial Control Section which covers accounting operations and controls, reporting, performance analysis and budgeting; and (2) Treasury Section which covers portfolio investment, fund management and market risk hedging for HKEx.

Administration Department
The Administration Department is responsible for providing the user divisions/departments of HKEx with all administrative services including office administration and property management.

Corporate Communications Department
The Corporate Communications Department operates as a two-way conduit between HKEx and the public. It keeps the public informed of new policies and developments at HKEx as well as in the securities and derivatives markets, and promotes the image and services of HKEx. It coordinates investor services, media relations, advertising, publication matters and corporate events for HKEx and handles public enquiries and complaints. It is also responsible for the development of corporate international relations.

Human Resources Department
The Human Resources Department is responsible for formulating and implementing human resources philosophies, policies, procedures, guidelines and systems so as to meet the changing conditions of HKEx and the markets. It aims at maintaining a productive and efficient pool of human resources so as to achieve HKEx's objectives, motivating employees through recognition and reward as well as developing employees' potential and improving their performance through training and development programs.
Internal Audit Department

The Internal Audit Department is responsible for conducting independent reviews and appraisals of HKEx's activities to support the Audit Committee in ensuring adequate oversight of internal controls in HKEx. The reviews include financial, operational, compliance and information technology related audits and evaluations. In addition, through these reviews, the Internal Audit function can help safeguard company assets, minimize operational risks, achieve corporate long term goals, enhance shareholder value and promote best practices of corporate governance.

Legal Services Department
The Legal Services Department is responsible for providing legal advisory services relating to the business and affairs of HKEx (other than listing matters handled by the Listing Division). Its functions include advising on the legality of projects undertaken by the group, preparing and reviewing contracts to which any group member is a party, amending and advising on the provisions of the rules of the Stock Exchange, the Futures Exchange and their respective clearing houses, advising on effective case management of any litigation and arbitration involving any group member, and advising on the statutory and regulatory requirements applicable to operational and administrative matters of the group.

Research & Planning Department
The Research & Planning Department conducts research and surveys on the securities and derivatives markets in Hong Kong, Mainland China and overseas to support the development of HKEx's markets. It supports HKEx planning, and provides related services to HKEx senior management. The Department also operates the Exchange Library for HKEx staff and Exchange Participants.

Secretarial Services Department
The Secretarial Services Department is responsible for providing company secretarial services and pursuing the highest level of corporate governance for HKEx. It ensures satisfactory arrangements and procedures to secure compliance with the relevant statutory and regulatory requirements and advises the Board on compliance matters. In addition, it also manages liaison with relevant regulatory authorities and provides administrative support to the Compensation Committee.