<ol>
<li>
GAC Group (02238.HK): Executive Director Feng Xingya has been elected as the new Chairman of the Board.
</li>
<li>
China Eastern Airlines Corporation Limited (00670.HK) spent HKD 4.4162 million on February 4th to repurchase 1.8 million shares.
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<li>
Standard Chartered Group (02888.HK) appointed Maria Ramos to succeed José Viñals as Group Chairman.
</li>
<li>
Kingkey Financial International (01468.HK): Collaboration with SIAM AI enables the group to provide computing power to clients.
</li>
<li>
Aime Vaccine (06660.HK): The mRNA RSV vaccine's humoral immunity and cellular immunity are significantly higher than international marketed products and has been submitted for clinical trials in the United States
</li>
</ol>

02888

601238

02238

1. The new chairman of GAC Group is Feng Xingya. 
2. China Eastern Airlines repurchased 1.8 million shares, costing HKD 4.4162 million. 
3. Standard Chartered Group appointed Maria Ramos as the new chairman. 
4. Kingkey Financial International collaborates with SIAM AI to enhance customer computing capabilities. 
5. The mRNA RSV vaccine from Aimee Vaccine outperforms international products in terms of immune efficacy and has applied for clinical trials in the United States

Daily Hong Kong Stock Market News Briefing (February 5, Wednesday)