As at the date of this announcement, save that Mr. Niu has been appointed as vice president of the Group -- International Cooperation with effect from 1 June 2022, (i) Mr. Niu does not hold any other positions within the Group, nor other major appointments and professional qualifications; (ii) Mr. Niu has no relationship with any Director, member of senior management of the Group or substantial or controlling shareholders of the Company; (iii) Mr. Niu did not hold any directorship in public companies the securities of which are listed on any securities market in Hong Kong or overseas in the last three years immediately preceding the date of this announcement; and (iv) Mr. Niu does not have, and is not deemed to have, any interests or short positions in any Shares, underlying shares or debentures of the Company or any of its associated corporations (within the meaning of Part XV of the SFO). The Board announces that with effect from 5 July 2022, (i) Mr. Lam John Cheung-wah has resigned as a non-executive Director, in order to better allocate his time for his business. Despite his resignation as a Director, Mr. Lam has been appointed as a member of Advisory Committee.

Mr. Lam has confirmed that he (i) has no disagreement with the Board; and (ii) there is no matter in relation to his resignation that needs to be brought to the attention of the Shareholders and the Stock Exchange. The Board expresses its gratitude to Mr. Lam for his valuable contributions to the Company during his term of services. (ii) Mr. Leung Kwong Ho has resigned as an independent non- executive Director and as a member of the Audit Committee and a member of the Nomination Committee in order to better allocate his time for his business.

Despite his resignation as a Director, Mr. Leung has been appointed as a member of Advisory Committee. Mr. Leung has confirmed that he (i) has no disagreement with the Board; and (ii) there is no matter in relation to his resignation that needs to be brought to the attention of the Shareholders and the Stock Exchange. The Board expresses its gratitude to Mr. Leung for his valuable contributions to the Company during his term of services.

The Board announced that, with effect from 5 July 2022, the international cooperation committee has been established for the purpose of promoting the cooperation between the Group and the international organizations or corporations in relation to aerospace development. The International Cooperation Committee currently comprises of two members, namely Dr. Othman as the chairman and Mr. Niu as a member cum secretary. The Board announced that, with effect from 5 July 2022, the advisory committee has been established for the purpose of providing professional advice for the business development of the Group.

The Advisory Committee currently comprises of four members, namely Dr. Lam Lee G., the Co- Chairman of the Board, as the chairman and Mr. Brooke Charles Nicholas, being an existing independent non-executive director, Mr. Lam and Mr. Leung as the members. The Board may, from time to time, appoint any other person with the appropriate qualification and experience as a member of the International Cooperation Committee or the Advisory Committee.