and our issued Shares with a market capitalization of at least HK\$375 million will be held by the public upon completion of the Global Offering in accordance with 8.08(1)(a) and 18A.07, respectively, of the Listing Rules.

# PRC LEGAL COMPLIANCE

# M&A Rules

The Regulations on Mergers and Acquisitions of Domestic Companies by Foreign Investors (關於外國投資者併購境內企業的規定) (the “M&A Rules”), which werej ointly promulgated by the MOFCOM, the State Assets Supervision and Administration Commission, the SAT, the SAMR, the CSRC and the SAFE on August 8, 2006, came into effect on September 8, 2006 and subsequently amended on June 22, 2009, require that foreign investors acquiring domestic companies by means of asset acquisition or equity acquisition shall comply with relevant foreign investment industry policies and shall be subject to approval by the relevant commerce authorities. Article 11 of the M&A Rules stipulates that an offshore special purpose vehicle established or controlled by a PRC domestic company, enterprise or natural person shall obtain approval from the MOFCOM prior to the acquisition of any domestic enterprise related to such company, enterprise or natural person. The M&A Rules, amongst others, also require that an offshore special purpose vehicle, or a SPV, formed for overseas listing purposes and through purchasing shares or equity interest in PRC domestic companies in exchange for the shares of offshore companies, and controlled directly or indirectly by PRC companies or individuals, shall obtain the approval of the CSRC prior to the listing and trading of such SPV’s securities on an overseas stock exchange.

The Manual of Guidance on Administration for Foreign Investment Access (2008 Edition)(《外商投資准入管理指引手冊(2008年版)) (the “Manual”), which was promulgated by the Foreign Investment Administration of the Ministry of Commerce, came into effect on December 18, 2018.The Manual stipulates that the transfer of equity of a Chinese party in an established foreign-invested enterprise to a foreign party shall not refer to the M&A Rules. No matter whether there is any associated relationship between the Chinese party and foreign party, and no matter whether the foreign party is the original shareholders or new investors. The target company of merger and acquisition shall include domestic capital enterprise only.

As advised by our PRC Legal Adviser, the proposed Listing is not subject to approval from the MOFCOM under the M&A Rules and our listing on the Stock Exchange is not subject to a prior approval from the CSRC under the M&A Rules.

# Circular 37

SAFE promulgated the Circular on Relevant Issues Concerning Foreign Exchange Control on Domestic Residents’ Offshore Investment and Financing and Roundtrip Investment through Special Purpose Vehicles (關於境內居民通過特殊目的公司境外投融資及返程投資外匯管理有關問題的通知) (the “SAFE Circular 37”) on July 14, 2014, which replaced the former circular commonly known as “SAFE Circular 75” promulgated by SAFE on October 21, 2005. SAFE Circular 37 requires PRC residents to register with local branches of SAFE in connection with their direct establishment or indirect control of an offshore entity, for the purpose of overseas investment and financing, with such PRC residents’ legally owned assets or equity interests in domestic enterprises or offshore assets or interests, referred to in SAFE Circular 37 as a “special purpose vehicle”. SAFE Circular 37 further requires amendment to the registration in the event of any significant changes with respect to the special purpose vehicle, such as increase or decrease of capital contributed by PRC individuals, share transfer or swap, merger, division or other material event. In the event that a PRC shareholder holding interests in a

special purpose vehicle fails to fulfill the required SAFE registration, the PRC subsidiaries of that special purpose vehicle may be prohibited from making profit distributions to the offshore parent and from carrying out subsequent cross-border foreign exchange activities, and the special purpose vehicle maybe restricted in its ability to contribute additional capital into its PRC subsidiary. Furthermore, failure to comply with the SAFE registration requirements described above could result in liability under PRC law for evasion of foreign exchange controls.

On February 13, 2015, SAFE released the Notice on Further Simplifying the Improving Policies for the Foreign Exchange Administration of Direct Investment (國家外匯管理局關於進一步簡化和改進直接投資外匯管理政策的通知) (the “SAFE Circular 13”), which became effective from June 1, 2015. According to SAFE Circular 13, local banks shall examine and handle foreign exchange registration for overseas direct investment, including the initial foreign exchange registration and amendment registration under SAFE Circular 37. However, there exists uncertainties with respect to its interpretation and implementation by governmental authorities and banks.

As advised by our PRC Legal Adviser, each of Dr. Wang and Dr. Hu is not required to make registration for their respective investments in our Company under SAFE Circular 37 or SAFE Circular 13, and each of Ms. Wang and Ms. Hu has completed the registration for their respective investments in our Company under SAFE Circular 37 on March 29, 2018.

Our PRC Legal Adviser have confirmed that all relevant material registrations, approvals and permits required under PRC laws and regulations in relation to the establishment, increases of registered capital, equity transfers in respect of the PRC subsidiaries of our Group as described above have been completed and obtained.

# OUR STRUCTURE IMMEDIATELY PRIOR TO THE GLOBAL OFFERING

The following diagram illustrates the corporate and shareholding structure of our Group immediately prior to the completion of the Global Offering: