HKEX filings show that after Alibaba (09988.HK) announced a HKD80 billion new share placement, chairman Joseph Tsai and CEO Wu Yongming bought a combined ~HKD120 million of Hong Kong-listed Alibaba shares. Tsai bought 720,000 shares at an average HKD112, spending about HKD80 million; CEO Wu bought 350,000 shares at an average HKD111.6, spending about HKD40 million. Total purchases: 1,070,000 shares for roughly HKD120 million.

Beijing High Pressure Science Research Center researcher Li Kuo and collaborators at Nankai University, Peking University and others report a high‑pressure solid‑state topological polymerization method that produces carbon‑encapsulated single‑metal‑atom chains with ordered atomic arrangement and high structural stability, achieving milligram‑scale batch yields and chain lengths exceeding 1 μm — roughly two orders of magnitude longer than previous international reports. The results are published in Science. The team used β‑copper phthalocyanine as the precursor and high pressure to precisely tune intermolecular spacing; the synthesis route is reported to be extendable to cobalt, nickel, zinc and other metal systems, providing a new fabrication pathway for low‑dimensional functional materials.

Alibaba (09988.HK) priced an HKD 80 bln new-share placement at HKD 112.70 per share, offering 710 mln shares; placement expected to settle on Aug. 26.