Ab&B Bio-Tech (2627) Included in Hang Seng Composite Index

Bulletin Express02-16

Ab&B Bio-Tech CO., LTD. JS (2627) announced the inclusion of its H shares in the Hang Seng Composite Index, effective March 9, 2026. According to the announcement, the index covers the top 95% of listed companies by cumulative market capitalization on HKEX’s Main Board and is widely used by various funds and performance evaluation systems.

The board of directors stated that this inclusion reflects market recognition of the company’s business performance and growth prospects. It is expected to expand the shareholder base, enhance trading liquidity, and further elevate the company’s reputation and brand awareness.

Ab&B Bio-Tech CO., LTD. JS is a China-based vaccine company focused on researching, developing, manufacturing, and commercializing innovative and traditional vaccines using new technical methods. Its product pipeline includes quadrivalent and trivalent subunit influenza vaccines and a lyophilized human rabies vaccine candidate, among other vaccine candidates.

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